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Mors Smitt Railway relays brochure

Mors Smitt Railway relays brochure

Product catalog summary

Overview: The document provides a comprehensive overview of Mors Smitt's railway relay products and solutions, focusing on onboard and trackside components. It highlights the company's dedication to developing reliable electrical equipment for the railway industry, emphasizing their long history and expertise in relay manufacturing.

Product Offerings: Mors Smitt offers a wide range of products including energy measurement systems, power distribution panels, automatic warning systems, relay blocks, alarm units, and various types of relays such as signalling, protection, and control relays. The document categorizes these products into different platforms (D, A/B, CU, C, Specials) based on their design features, specifications, and applications.

Market Characteristics: The railway industry demands components that can withstand harsh conditions such as shock, vibration, dust, and temperature variations. Mors Smitt's products are designed to meet these challenges, ensuring long life and low lifecycle costs.

Standards and Compliance: Mors Smitt's products comply with strict railway standards including EN 50155, EN 50121, IEC 60077, IEC 60571, and IEC 61373. The company is certified under ISO 9001:2008, ISO 14001, and the IRIS standard, ensuring quality and environmental management.

Relay Platforms: The document details various relay platforms:

D-platform: Compact multifunctional relays with up to 4 change-over contacts.
A/B-platform: Heavy-duty relays with long mechanical life, suitable for various applications.
CU-platform: Small relays with up to 2 change-over contacts.
C-platform: Flat multifunctional relays with up to 9 change-over contacts.
Specials: Relays with diverse functionalities for different applications.

Selection Tables: The document includes detailed selection tables that outline the specifications, contact configurations, and maximum continuous current for each relay type. It also provides information on additional features such as safety-critical functions, instantaneous and latching capabilities, and monitoring options.

Conclusion: Mors Smitt is committed to innovation and environmental consciousness, working closely with railway operators to develop safer and more efficient railway networks. Their extensive product range and adherence to international standards make them a leading provider in the railway technology sector.

Specifications: The document provides detailed specifications and options for various plug-in railway relays and timer relays manufactured by Mors Smitt. It includes information on mechanical and environmental characteristics, contact data, and available options for customization.

Specifications:

Mechanical Life: Ranges from 2 x 10⁶ to 50 x 10⁶ operations depending on the relay type.
Weight: Typically 140 g, with some models weighing up to 305 g.
Operating Temperature: Standard range is -25 °C to +70 °C, with options for low temperature operation down to -40 °C or -50 °C.
Humidity: Up to 95% with temporary condensation permitted.

Contact Data:

Types of Contacts: Available in configurations such as 2 C/O, 3 C/O + 1 N/C, 4 C/O, and 8 C/O.
Current Ratings: Maximum make current of 16 A, with continuous current ratings up to 10 A.
Switching Voltage: Maximum of 250 VDC or 440 VAC.
Contact Resistance: Initial resistance is 15 mΩ.

Options:

Low temperature operation, gold plated contacts, special dust protection, LED coil indicator, and various diode configurations.
Magnetic arc blow-out and high resistance to welding with AgSnO₂ contacts.
Push-to-test button and double make/break options.

Relay Types:

AC Coil Relays: Suitable for AC coil voltages with a frequency of 50/60 Hz, featuring high DC breaking capacity and optional mechanical keying.
Bistable Relays: Latching relays with contacts that remain in the last powered position, featuring a clear position indicator.
Timer Relays: Electronic railway timer relays with adjustable delay on pull-in, featuring weld-no-transfer contacts.

Nominal Voltage and Coil Data: Detailed tables provide nominal voltage, minimum and maximum voltage, coil resistance, and power consumption for various relay models.

Additional Information: For dimensions, mounting possibilities, and detailed datasheets, refer to the specified pages or visit the Mors Smitt website.

Overview: The document provides detailed specifications and features of various plug-in electronic railway timer relays, including models TDB2-U200, TDB4-U200, TDE-U200, TDE3-U200, TDE4-U200, TDBE-U200, TDDB-U200, TDDB-U300, and TDD4B2-U200. These relays are designed for railway applications with various delay functions and contact configurations.

Specifications:

Time Delay Functions: Available in delay on pull-in, delay on drop-out, and combinations of both. Adjustable time ranges from 0.1 seconds to 60 minutes.
Contact Configurations: Options include 1 C/O + 1 N/O, 2 C/O, 3 C/O, and 4 C/O contacts, with maximum make currents ranging from 6 A to 16 A.
Voltage Ratings: Nominal voltages range from 24 VDC to 240 VDC, with specific models supporting AC input voltages.
Mechanical and Environmental Characteristics: Operating temperature range is -25°C to +70°C, with humidity tolerance up to 93%.

Features:

Compact plug-in design with integrated snap-lock and optional positive mechanical keying relay to socket.
Adjustable delay times with lockable knobs and status indication via LEDs.
Magnetic arc blow-out and weld-no-transfer contacts for enhanced reliability.
Wide range of sockets available for versatile mounting options.

Options:

Low temperature operation (-40°C).
Gold plated contacts and extra dust protection.
Double zener diode over input for enhanced protection.

Applications: These timer relays are suitable for railway applications requiring precise timing control and reliable switching capabilities.

Specifications:
The document outlines various types of plug-in railway relays with different specifications. Key specifications include nominal voltage, time delay functions, contact types, and current ratings. The relays are designed for both DC and AC applications with adjustable time ranges and voltage monitoring capabilities.

Contact and Current Specifications:
Relays are available with 2 or 4 change-over (C/O) contacts. Maximum make current ranges from 10 A to 16 A, with peak inrush current up to 200 A. Maximum continuous current is specified at 8 A to 10 A, and maximum switching voltage varies between 250 VDC and 440 VAC. Minimum switching voltage is 12 V, and minimum switching current is 10 mA.

Mechanical and Environmental Characteristics:
The relays have a mechanical life expectancy of up to 30 million operations and can operate within a temperature range of -25 °C to +70 °C. They are designed to withstand humidity levels up to 95%, with some models allowing temporary condensation.

Voltage Monitoring and Timing Functions:
The relays include features such as voltage monitoring, adjustable pull-in voltage, and hysteresis. Timing functions include delay on pull-in and flashing with symmetrical pulse rates. Adjustable time ranges are provided for various applications.

Options and Additional Features:
Optional features include low-temperature operation, gold-plated contacts, special dust protection, and magnetic arc blow-out. Some models offer integrated snap-locks and positive mechanical keying for secure socket connections.

Applications:
These relays are suitable for railway applications, offering high DC breaking capacity and robust design for reliable performance in demanding environments. They are available in compact plug-in designs with a wide range of sockets.

Overview: This document provides detailed specifications and characteristics of various plug-in electronic railway relays, including FDA4, FDC, FDG, WDE4, PDF3, and WDDE series. These relays are designed for different applications with varying voltage requirements and functionalities such as flashing, one-shot timing, and instantaneous operations.

Specifications:

FDA4 Series: Features symmetrical flashing with 4 change-over (C/O) contacts, a fixed pulse rate, and options for adjustable pulse rates. It supports a maximum make current of 16 A and a continuous current of 10 A.
FDC Series: Offers asymmetrical flashing with 2 C/O contacts, fixed pulse and interval times, and options for magnetic arc blow-out and dust protection.
FDG Series: Provides symmetrical flashing with solid-state contacts in counterphase, supporting a maximum switching capacity of 2 lamps of 84 W.
WDE4 Series: Includes one-shot time relays with 4 C/O contacts, adjustable pulse times, and options for AC input voltages.
PDF3 Series: Features one-shot relays with 3 C/O contacts, activated by the negative edge of DC voltage, with fixed pulse times.
WDDE Series: Combines instantaneous and one-shot functions with 2 C/O instantaneous and 2 C/O one-shot contacts, suitable for both DC and AC inputs.

Mechanical & Environmental Characteristics:

Operating temperature ranges from -25°C to +70°C.
Humidity tolerance varies between 80% and 95% depending on the model.
Mechanical life expectancy ranges from 10 million to 30 million operations.

Options and Features:

Low temperature operation (-40°C).
Gold plated contacts for enhanced conductivity.
Extra dust protection and non-weldable contacts.
Integrated snap-lock and optional positive mechanical keying relay to socket.

Connection and Mounting: Detailed diagrams and mounting possibilities are available on the manufacturer's website, with specific pages referenced for dimensions and socket options.

Specifications:
The document provides detailed specifications for various relay models, including mechanical life expectancy, weight, operating temperature, and humidity tolerance. For instance, the mechanical life is specified as 10 million operations, and the operating temperature range is -25 °C to +70 °C. The document also lists the dimensions and mounting possibilities for different relay types.

Ordering Scheme:
An example ordering scheme is provided for the D-platform relays, detailing the relay model, coil voltage, and available options such as low temperature operation, gold plated contacts, and special dust protection.

Electrical Life Expectancy:
The document includes graphs showing the AC and DC current breaking capacity versus life expectancy in millions of cycles. These graphs illustrate the performance of the relays under different load conditions and contact opening rates.

Sockets and Mounting:
Various socket types are described for different mounting possibilities, including surface/wall, rail, panel/flush, and PCB mounting. The document emphasizes the reliability and long-term availability of these sockets.

Design Features:
The A-/B-platform relays are highlighted for their design features, such as silver tin oxide contacts for welding resistance, self-cleaning contacts, and a safety design counter blade system. The relays are designed for safety-critical applications with features like double arc extinction and flexible coupling to extend mechanical life.

Options:
Several optional features are available for the relays, including gold-plated contacts, weld-no-transfer contacts, back EMF protection diodes, LED indicators, and manual reset control levers.

Contact Data:
Detailed contact data is provided, including maximum contact ratings, contact material, and resistance. The document specifies the electrical life expectancy and mechanical life of the contacts.

Additional Information:
The document references additional resources and datasheets available on the Morssmitt website for further detailed information.

Overview: This document provides detailed specifications and characteristics of various railway relay models, focusing on their mechanical and environmental properties, contact data, and optional features. The relays are designed for high durability and ease of maintenance, with a mechanical life expectancy of over 100 million cycles.

Specifications:

Mechanical Life: Over 100 million cycles.
Weight: 300g to 450g depending on the model.
Operating Temperature: -40°C to +80°C.
Humidity Resistance: 93% RH at 40°C for 4 days.

Contact Data:

Maximum Continuous Current: 8A to 12A.
Contact Overload Withstand: At 24 VDC, 10 x 100A to 200A for 10 ms, 1 operation per minute.
Contact Material: Options include tin silver oxide and gold plating over hard silver.
Contact Configuration: 4 double make/break C/O contacts (form Z).

Electrical Characteristics:

Nominal Voltage & Keying: Various models with VDC and VAC options, including AG, FL, DG, BG, SV, EG, SZ, CG, etc.
Coil Resistance Tolerance: ±8% at 20°C.
Protection Options: Transil coil protection, avalanche diode coil protection, LED voltage indicator, and relay cover for wire locking spring.

Design Features:

Plug-in Design: Facilitates easy installation and maintenance.
Secure Locking Feature: Ensures maximum ease of maintenance.
Weld-No-Transfer Contacts: Available for safety-critical applications.

Optional Features:

Transil coil protection.
Avalanche diode coil protection.
LED voltage indicator.
Relay cover for wire locking spring.

Additional Information: Detailed dimensions, mounting possibilities, and datasheets are available on the manufacturer's website.

Specifications:
1. Contact Ratings:

Operating: 20 mA maximum at 72 VDC
Carry only: 5 A maximum at 5 VDC
Minimum current: 1 mA at 12 VDC

2. Contact Material:

Stationary contacts: Solid gold alloy
Moveable contacts: Gold over hard silver overlay laminated to copper

3. Contact Resistance:

< 20 mΩ at 5 A (carry only)

4. Electrical Life Expectancy: 2 x 10⁶ operations

Relay Features:
1. Plug-in Railway Relay:

3 silver double make/double break C/O contacts
1 gold bifurcated C/O contact
Weld-no-transfer function for silver contacts
Contact life (mechanical): 100 million cycles
Secure locking feature for maintenance

2. Latching Railway Relay:

2 stable magnetic latched states
4 C/O contacts for type 400, 3 C/O contacts for type 300
Weld-no-transfer contacts optional
Contact life (mechanical): 100 million cycles

Mechanical & Environmental Characteristics:
1. Operating Temperature: -40 °C to +80 °C
2. Humidity: 93% RH at 40 °C for 4 days
3. Weight: 450 g

Electrical Characteristics:
1. Nominal Voltage & Keying:

Various models with different voltage ratings (e.g., AK 24 VDC, CK 36 VDC)

2. Coil Resistance Tolerance: ± 8% at 20 °C

Relay Types and Operations:
1. 400 Contact Type:

Operates with a 50 ms pulse
Magnetically latches contacts between positions

2. 300 Contact Type:

Designed for permanent voltage actuation
Magnetically latches contacts between positions

Additional Features:
1. Options:

Transil coil protection
Avalanche diode coil protection
LED voltage indicator
Relay cover for wire locking spring

Time Delay Relays:
1. Delay-on Pull-in:

Fixed time delay < 10 s

2. Delay-off:

Fixed time delay < 10 s

3. Delay-on or Delay-off:

Time delay programmable by dip switch
Status LED indicator

Overview: This document provides technical specifications and operational details for a series of railway relays with delay-on and delay-off functionalities. These relays are designed for high reliability and ease of maintenance, featuring a compact plug-in design and programmable time delays.

Specifications:

Nominal Voltage & Keying: Various models with nominal voltages ranging from 12 VDC to 110 VDC, with operating voltages and coil resistances specified for each model.
Time Delay Function: The relays offer delay on pull-in or drop-out, selectable via a dip switch. The total time delay range varies from 0.25 seconds to 255 hours, depending on the model.
Contact Data: Each relay features 4 double make/double break contacts (form Z) made of hard silver overlay laminated to copper. Initial contact resistance is 10 mΩ max at 5 A, increasing to 40 mΩ max at end of life.
Mechanical & Environmental Characteristics: The relays have a mechanical life expectancy of over 100 million operations, can operate in temperatures from -40°C to +85°C, and withstand humidity levels of 93% RH at 40°C for 4 days.

Features:

Compact plug-in design for easy installation and maintenance.
Programmable time delay via dip switch, with a status LED indicator for operational status.
Secure locking feature to ensure stability during operation.
Weld-no-transfer contacts standard for enhanced reliability.

Applications: These relays are suitable for railway applications where precise timing and reliable operation are critical. They are designed to handle high current loads and provide long-term durability in harsh environmental conditions.

Overview: The document provides detailed technical specifications and features of various railway relay models manufactured by Mors Smitt. These relays are designed for different applications, including time delay, one-shot, two-shot, and monitoring functions.

1. TTBCR 400 Timer & Instantaneous Relay:

Features a compact plug-in design with 6 A capacity and 4 change-over contacts (2 instantaneous and 2 delayed).
Time delay is programmable via a dip switch, with a range of 0.5 to 60 seconds.
Includes a status LED indicator and secure locking for maintenance.
Operates within a temperature range of -40°C to +85°C and has a mechanical life of 10 million operations.

2. TPBAU 400 One-shot Relay:

Designed for delay on pull-in or drop-out with 8 A capacity and 4 double make/break contacts.
Time delay is adjustable via a dip switch, ranging from 0.25 hours to 63.75 minutes.
Features a status LED and a mechanical life of over 100 million cycles.

3. TPBAUN 400 One-shot Relay with Negative Edge Command:

Similar to TPBAU 400 but triggered by the negative edge of the command input.
Maintains the same time delay range and mechanical characteristics.

4. TPBBU 400 One-shot Relay:

Supports a higher current capacity of 12 A with similar features to TPBAU 400.
Contact overload withstands up to 200 A at 24 VDC for 10 ms.

5. T2PBAU 400 Two-shot Relay:

Provides delay on both pull-in and drop-out with 8 A capacity.
Time delay is programmable, with a range from 0.25 seconds to 63.75 minutes.

6. IB 200 Current Monitoring Relay:

Monitors current levels from 16 A to 24 A with 2 change-over contacts.
Features adjustable current measurement and a maximum shunt current of 40 A.

7. UB 001 & UB 002 Voltage Monitoring Relays:

Designed for load shedding based on battery voltage levels with delay-on and delay-off functions.
UB 001 has 1 N/O solid state contact, while UB 002 has 2 N/O contacts.
Both models operate within a voltage range of 24 VDC to 110 VDC.

Key Specifications:

All relays feature a compact plug-in design with secure locking for maintenance.
Operating temperature range is typically -40°C to +85°C.
Mechanical life expectancy is generally over 100 million operations for most models.

Overview: The document provides detailed technical specifications and configurations for various types of railway relays, focusing on voltage monitoring and flashing functionalities. It includes information on time delay specifications, electrical and mechanical characteristics, and options for customization.

Specifications:

Voltage Monitoring Relays: These relays are designed to open auxiliary load circuits when battery voltage drops too low and restore them when the voltage recovers. They feature a compact plug-in design, secure locking, and are available with different configurations of normally open (N/O) and changeover (C/O) contacts.
Flashing Relays: These relays provide symmetrical and asymmetrical flashing functions with adjustable pulse and interval times. They are equipped with double make/break contacts and status LED indicators.

Time Delay Specifications:

Time delay on voltage increase: 0 to 20 seconds (adjustable on request).
Time delay on voltage drop: 0 to 20 seconds (adjustable on request).

Electrical Characteristics:

Operating voltage range: 24 VDC to 110 VDC.
Operating current: Less than 10 mA to 50 mA depending on the model.
Maximum load current: Ranges from 0.2 A to 12 A.

Mechanical & Environmental Characteristics:

Operating temperature: -40 °C to +85 °C.
Weight: Varies from 150 g to 450 g.
Humidity tolerance: 93% RH at 40 °C for 4 days.

Keying and Nominal Voltage: The document provides a detailed keying scheme for different nominal voltages, allowing for customization based on specific requirements.

Options and Customization: Options include relay covers for wire locking springs and various configurations for coil protection, LED indicators, and language preferences for test reports.

Conclusion: The document serves as a comprehensive guide for selecting and configuring railway relays, offering flexibility in terms of voltage levels, contact configurations, and additional features to meet specific operational needs.

Overview: The document provides technical specifications and performance data for various relay types manufactured by Mors Smitt. It includes details on coil protection, contact types, LED indicators, and ordering schemes. Additionally, it presents mechanical and electrical characteristics, including life expectancy and current breaking capacities.

Specifications:

Coil Protection: Options include no protection, avalanche diode, and Transil protection (specific to 400 type).
Contact Types: Regular double break contacts and weld-no-transfer options are available.
LED Indicators: Relays can be equipped with or without LED voltage indicators.
Mechanical Life: Exceeds 100 million operations.
Operating Conditions: Temperature range from -40°C to +80°C, with humidity tolerance of 93% RH at 40°C for 4 days.

Performance Data:

Electrical Life Expectancy: Detailed through dynamic relay selection curves, showing AC and DC current breaking capacities versus life expectancy in millions of cycles.
Current Breaking Capacity: Curves illustrate the relationship between current, voltage, and life expectancy for both resistive and inductive loads.
Load Time Constant (L/R): Maximum power interruption data is provided for various load time constants and voltages.

Ordering and Dimensions:

Each relay type has a specific ordering scheme, with detailed dimensions and mounting possibilities available on the Mors Smitt website.
Dimensions are provided for various relay types, with options for locking brackets and wire locking springs.

Key Observations:

Connecting two contacts in series increases DC current breaking capacity by 50%.
Curves are provided for both resistive (Power Factor = 1) and inductive loads, with specific attention to continuous current and load time constants.

Specifications:
The document outlines the specifications for various relay models, focusing on their electrical and mechanical characteristics. Key specifications include:

Continuous current and DC current breaking capacity, which can be increased by 50% by connecting two contacts in series.
Life expectancy of 800,000 cycles for certain models.
Maximum contact breaking capacity versus voltage for different L/R values.
AC current breaking capacity versus life expectancy in millions of cycles.

Procedures:
The document provides guidelines for mounting and connecting relay sockets. It details:

Surface/wall mounting and panel/flush mounting options.
Various connection terminals and their specifications.
Instructions for mounting on a 35 mm rail by adding a suffix D.

Norms and Standards:
The relays are designed to be corrosion-resistant, shock and vibration-resistant, and suitable for hazardous areas. They feature a safety design counter blade system to ensure they remain in a logical configuration, which is crucial for safety-critical applications.

Recommendations:
The document recommends using gold-plated contacts for environments with corrosive atmospheres and for switching low currents and voltages. It also suggests positive mechanical keying to prevent incorrect relay insertion.

Key Data from Tables and Graphs:
The document includes several curves and tables illustrating:

Maximum power interruption versus load time constant (L/R) for given voltages.
Electrical life expectancy and maximum switching capacity for different relay models.
Nominal, minimum, and maximum voltages, along with coil resistance for various relay types.

Critical Information:
Relays are available in different models with specific features such as:

Miniature design with high contact life and optional features like gold-plated contacts.
Different contact arrangements and coil voltages.
Mechanical life expectancy ranging from 10 to 30 million operations.

Overview: This document provides detailed specifications and characteristics of various miniature railway relays, focusing on their electrical and mechanical properties, contact data, and mounting options. The relays are designed for high maximum current and long electrical life, with options for gold-plated contacts and positive mechanical keying.

Specifications:

Contact Type: 1 double make/double break contact.
Maximum Make Current: 15 A.
Maximum Continuous Current: 8 A.
Maximum Switching Voltage: 300 VDC (max current 300 mA), 250 VAC (max current 2.6 A).
Minimum Switching Voltage: 12 V.
Minimum Switching Current: 10 mA.
Contact Resistance: Maximum 15 mΩ.
Material: Silver with 0.2 µm gold flash for storage purposes.

Electrical Life Expectancy: The document includes graphs on page 132 to determine the electrical life expectancy based on switching capacity and load.

Mechanical & Environmental Characteristics:

Mechanical Life: 30 million operations.
Operating Temperature: -40 °C to +70 °C.
Humidity: 95% (temporary condensation permitted).
Weight: 40 g.

Mounting Options: Various sockets are available for surface, wall, rail, and PCB mounting, with options for back EMF-diode and LED indicators.

Ordering Information: The document provides an example ordering scheme for the CU-platform relays, detailing the relay model, coil voltage, relay type, and available options.

Additional Features: Some relays include features like magnetic arc blow-out, low temperature operation, and suitability for non-sinusoidal currents.

Graphs and Diagrams: The document includes timing and connection diagrams, as well as graphs for maximum switching capacity and electrical life expectancy, which are crucial for determining the appropriate relay for specific applications.

Overview: The document provides detailed specifications and options for multifunctional relays designed for safety-critical applications, particularly in railway systems. These relays are characterized by their compact size, high mechanical life expectancy, and various contact configurations.

Specifications:

Relays feature up to 9 change-over contacts with a mechanical life of 100 million cycles.
Standard base dimensions are 33 x 65 mm.
Maximum continuous current is 8 A with contact overload withstand at 24 VDC: 10 x 160 A for 10 ms.
Operating temperature range is -40 °C to +80 °C with humidity tolerance of 93% RH at 40 °C for 4 days.

Design Features:

Options include silver tin oxide contacts for welding resistance and gold contacts for dry circuit applications.
Self-cleaning contacts and a safety design counter blade system ensure reliability in safety-critical applications.
Double arc extinction and double make/break contacts enhance electrical life and performance under high inductive or capacitive loads.

Options:

Gold-plated contacts for resistance against corrosive atmospheres.
Weld-no-transfer contacts ensure that N/C and N/O contacts cannot be closed simultaneously.
Back EMF protection diode and LED indicators for power supply status.
Double zener coil protection diode for surge protection.
Mechanical keying to prevent incorrect relay insertion.

Contact Data:

Contact material includes hard silver overlay laminated to copper and gold plating for specific applications.
Initial contact resistance is 10 mΩ max at 5 A, increasing to 40 mΩ max at end of life.
Electrical life expectancy is detailed in curves provided in the document.

Mechanical & Environmental Characteristics:

Relays are designed for plug-in installation with secure locking features for ease of maintenance.
Weight is approximately 400 g.

Applications: These relays are suitable for both DC and AC applications, with specific models designed for railway systems and other safety-critical environments.

Overview: This document provides technical specifications and operational details for various railway relays, focusing on safety-critical latching relays, voltage monitoring relays, and flashing relays. It includes contact data, mechanical and environmental characteristics, and electrical life expectancy curves.

Specifications:

Contact Material: Hard silver overlay laminated to copper.
Contact Resistance: Initial 10 mΩ max at 5 A; end of life 40 mΩ max at 5 A.
Electrical Life Expectancy: Refer to curves on page 146.
Operating Temperature: -40 °C to +85 °C for latching relays; -25 °C to +70 °C for flashing relays.

Procedures:

Latching Relay Operation: Utilizes two separate coils and a magnetic rocker mechanism. A pulse of 50 ms minimum duration is required to actuate the relay.
Voltage Monitoring Relay: Activates when input voltage exceeds the control threshold, with a predefined activation time.
Flashing Relay: Controls filament lightbulbs with factory-set independent output channels and flashing delay.

Norms and Recommendations:

Coil Resistance Tolerance: ± 8% at 20 °C.
Contact Life: Mechanical life of 50 million cycles.
Secure Locking Feature: Ensures ease of maintenance.

Diagrams and Curves:

Timing and Connection Diagrams: Provided for different relay operations.
Electrical Life Expectancy Curves: Show AC and DC current breaking capacity versus life expectancy in millions of cycles, with specific curves for resistive and inductive loads.

Additional Information: Detailed datasheets and mounting possibilities are available on the manufacturer's website.

Overview: This document provides detailed technical specifications and characteristics of various railway relay modules and components offered by Mors Smitt. It includes information on mechanical and environmental characteristics, contact data, and options available for customization.

Specifications:

Nominal Voltage and Coil Resistance: Various models are listed with nominal voltages ranging from 12 VDC to 115 VDC, with coil resistance tolerances of ±8% at 20°C.
Mechanical Life: The relays have a mechanical life expectancy ranging from 10 million to 100 million operations, depending on the model.
Operating Temperature: The relays can operate in temperatures ranging from -50°C to +80°C.
Humidity: The relays can withstand humidity levels up to 95% RH, with some models allowing temporary condensation.

Contact Data:

Contact Material: Contacts are made from hard silver or silver tin oxide, with some models featuring gold flash for storage purposes.
Contact Resistance: Initial contact resistance is typically 10 mΩ max at specified currents, with end-of-life resistance reaching up to 40 mΩ.
Switching Capacity: Maximum switching voltages are 300 VDC and 250 VAC, with specific current limits depending on the voltage.

Mechanical & Environmental Characteristics:

Weight: Relay weights vary from 40 g to 1800 g.
Mounting Options: Relays can be mounted on 35 mm rails or any surface using screws.

Options and Features:

Protection Options: Transil coil protection, controlled avalanche diode coil protection, and MOV module protection are available.
Design Features: Relays feature plug-in designs, latching mechanisms, and secure locking for ease of maintenance.

Applications: The relays are suitable for various railway applications, including current monitoring, over- and undervoltage monitoring, and as replacements for vapor relays.

Specifications:
The document details various relay modules, specifically the D8-U200 and D4-U200 series, which are designed for instantaneous and timer functions. These modules are compact, space-saving, and can replace contactors with up to 8 contacts. They feature heavy-duty, high VDC switching capabilities and are available with different contact combinations and connection types (screw or spring clamp).

Procedures:
The document outlines the steps for determining switching voltage and calculating the maximum switching capacity. It also provides guidance on calculating the electrical life expectancy based on the load and switching capacity.

Norms and Standards:
Mechanical life expectancy is specified as 50 million operations, with operating temperatures ranging from -25°C to +70°C. Humidity tolerance is up to 95% with temporary condensation allowed.

Recommendations:
Options for customization include gold-plated contacts, special dust protection, LED coil indicators, and various mounting brackets. The document also suggests using the correct relay and socket combinations to prevent accidental mismatches.

Key Data from Tables and Graphs:
The document includes tables listing nominal voltages, minimum and maximum operating voltages, and coil resistance for different relay types. Graphs illustrate the relationship between switching capacity, voltage, and electrical life expectancy.

Critical Information:
Relays are uniquely keyed to prevent incorrect insertion into sockets, ensuring safety and reliability. The document emphasizes the importance of selecting the appropriate relay type for specific applications to maximize performance and lifespan.

Overview: The document provides detailed specifications and features of various electronic timer modules and relays manufactured by Mors Smitt. These components are primarily used in railway technology and other industrial applications.

Specifications: The timer modules operate within a voltage range of 24 VDC to 110 VDC, with operating currents less than 30 mA and maximum load currents up to 0.8 A. The time delay functions include delay on pull-in and delay on drop-out, with a total time delay range from 0.25 seconds to 63.75 minutes. The time delay is fixed after connecting the terminals.

Keying and Voltage: The document lists various keying configurations with nominal and operating voltage ranges for different models, such as KE, OW, PW, HD, and SW, among others.

Mechanical and Environmental Characteristics: The modules have a mechanical life with MTBF (Mean Time Between Failures) ranging from 117,000 to over 1,000,000 hours. They are designed to operate in temperatures from -40°C to +85°C and can withstand humidity levels of 93% RH at 40°C for 4 days.

Design and Features: The modules feature a compact plug-in design with secure locking for ease of maintenance. They offer programmable time delays through external connections and are available with options like relay covers for wire locking springs.

Mounting and Sockets: Various mounting possibilities are provided, including surface/wall and panel/flush mounting. The sockets are designed for reliability and long-term availability, with options for wire locking springs and locking brackets.

Applications: The document highlights specific applications such as train windshield wiper control modules, which allow adjustable wiping sequences via a potentiometer.

Contact Information: The document provides contact details for Mors Smitt offices in France, Hong Kong, the Netherlands, the United Kingdom, and the USA.

Catalog excerpts

Mors Smitt Railway Technology Railway relays

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Mors Smitt Railway Technology Railway relays

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Signalling & control relays Protection relays Measuring sensors MSAV ultralight AC / DC energy measurement system (data handling and train functions) Door control units Electrical control (relay) panels Hall effect sensors MSAVDC energy measurement AC / DC voltage presence indicator ICP intelligent circuit protection High current / voltage protection relays iREP intelligent relay panels Power distribution (MCB) panels AWS automatic warning system TPWS train protection & warning system Relay blocks Alarm & indicator units Panel indicators Drivers advisory system (DAS) Relay 19” racks Miniature...

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Mors Smitt Railway technology Mors Smitt is entirely devoted to develop and manufacture electrical equipment, components and control solutions for railway and trackside applications. Mors Smitt has become leading in this demanding market. We supply the largest international rolling stock manufacturing enterprises as well as the main world rail operators. Mors Smitt has been manufacturing relays since 1902. We have a wide range of relays fit for all railway rolling stock applications. Our technology was developed in the 1960’s and has proven itself over time and is still the most reliable and...

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New solutions are co-designed with railway operators and contractors, creating safer railway networks

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The Mors Smitt relay selection is divided in the following platforms: - Example ordering scheme 51 - Electrical life expectancy 54 - 55 - Example ordering scheme 103 - Electrical life expectancy 106 -113 - Electrical life expectancy 130 -132 - Example ordering scheme 134 - Electrical life expectancy 146 -149 Example ordering scheme 151 - Electrical life expectancy 176 -177 Electronic time modules 181 ^MITT" www.morssmitt.com

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Relay platforms Compact multi functional relays for all different kind of applications. Up to 4 change-over contacts these relays all have the same base of 40 x 40 mm. 8-pole configurations in different types also available. Heavy duty multi functional relays with very long mechanical contact life of 100 million cycles. Up to 4 change-over contacts these relays all have the same base of 45 x 45 mm. Different types available for many different applications. B-relays with higher continuous contact load and higher relay cover than A-relays. ThlMors Smitt Vj^r A Wabtec Company www.morssmitt.com VJMIT...

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Relay platforms Small relays up to 2 change-over contacts.These relays all have the same base of 20 x 30 mm and different models are available for different applications. Flat multi functional relays up to 9 change-over contacts and very long mechanical contact life of 100 million cycles. These relays all have the same base of 33 x 65 mm. Different models are available for different applications. Instantaneous Latching Flashing Monitoring Relays with different functionalities and options for many different applications. Ranging from 1 to 40 change-over contacts in different dimensions. Electronic...

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Selection table The details of each relay are described in the product pages in the next chapters. A first distinction can be made with 2 graphs. The first graph shows different relay platforms with respect to the number of contacts and the maximum continuous contact current. 401 / 407 relays Contacts: 40 N/O-N/C Max. cont. current: 8 A Safety critical Instantaneous Latching 303 / 310 relays Contacts: 19 N/O-N/C Max. cont. current: 8 A Safety critical Instantaneous Latching C-platform Contacts: 9 N/O-N/C Max. cont. current: 8 A Safety critical Instantaneous Latching Monitoring Flashing Maximum...

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Selection table The second graph shows a comparison of different relay platforms with respect to their electrical life DC current breaking capacity (24 VDC resistive load) Comparison chart of life expectancy different relay platforms (for details see life expectancy curves of each relay) ^MITT" www.morssmitt.com

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Special dust protection Push-to-test button Double make / double break Coil input Position indicator Gold bifurcated and silver contacts Manual reset control lever Gold contacts Integrated snap-lock Weld-no-transfer contacts Make before break contacts Double zener coil protection diode (transil) Mechanical keying relay to socket Polarisation diode Back EMF protection diode Current coil Selection table Delay on pull-in 2 Delay on drop-out 1

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Push-to-test button - Position indicator Manual reset control lever Current coil Gold bifurcated and silver contacts Mechanical keying relay to socket Special dust protection Integrated snap-lock Make before break contacts Coil input Double zener coil protection diode (transil) Polarisation diode Double make / double break Gold contacts Weld-no-transfer contacts Back EMF protection diode Selection table Timer & instantaneous Delay on pull-in 2 Delay on drop-out 1

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Back EMF protection diode Polarisation diode Double zener coil protection diode (transil) Make before break contacts Special dust protection Push-to-test button Coil input Specials Type Coil input Integrated snap-lock Weld-no-transfer contacts Current coil Double make / double break Position indicator Manual reset control lever Gold bifurcated and silver contacts Mechanical keying relay to socket Gold contacts Selection table Main features Ultra compact Ultra compact Ultra compact Safety-critical, weld-no-transfer contacts Safety-critical, weld-no-transfer contacts No auxiliary power supply necessary,...

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Compact multi functional relays for all different kind of applications. Up to 4 change-over contacts these relays all have the same base of 40 x 40 mm. 8 pole configurations in different types also available. ^MITT" www.morssmitt.com

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Design features The unique D-platform is specifically designed to solve demanding applications in the railway market: high DC breaking capacity and inductive load switching, offering long electrical life and low life cycle costs. The D-platform offers ultimate flexibility to be suitable for many railway applications. Joke + springs The joke + springs system is adjusted to calibrate the contact pressure of the normally closed contacts. Suitable for hazardous areas Corrosion resistant. Shock & vibration resistant. Integrated snap-lock. Switching capacity 1 mA...10 A (200 A overload). High DC breaking...

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Mors Smitt Railway relays brochure

Mors Smitt Railway relays brochure

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