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EL.CO.
SOLID-STATE RELAYS

SOLID-STATE RELAYS

Product catalog summary

Overview: This document is a technical catalogue from EL.CO. S.r.l. detailing their range of solid-state relays (SSRs), including specifications, applications, advantages, limitations, installation guidelines, and compliance with EC standards.

Main Sections:

Solid-State Relays: The catalogue categorizes SSRs into zero-crossing relays, instant commutation relays, and D.C. commutation relays, each suited for specific load types such as resistive, capacitive, or inductive loads.
General Features: All relays include a snubber filter for voltage spike protection. Additional protection with a varistor and fast-reacting fuses is recommended in industrial environments.
EC Reference Standards: The relays comply with the Low Voltage Directive (2014/35/EU) and the Electromagnetic Compatibility Directive (2014/30/EU).
Advantages: Benefits include low power supply, high reliability, reduced response time, no mechanical wear, compatibility with digital circuits, and noiseless operation.
Limitations: Limitations include voltage drop, output limited to A.C. or D.C., frequent need for a dissipator, and sensitivity to transient voltages.
Installation Guidelines: Relays should be installed in well-ventilated areas to ensure proper heat dissipation and should not be stacked to avoid overheating.
Product Range: Lists various series of SSRs, including SCR, MOSFET, IGBT, and phase angle control relays, each with specific models and technical specifications.
Accessories: Accessories such as metal oxide varistors and heat sinks are available to complement the relays.

Technical Data: Detailed technical specifications are provided for each relay model, including nominal voltage, load voltage range, and output current.

Technical Specifications:

Repetitive Surge Peak: On-state current ranges from 400 A to 1000 A with a critical rise of off-state voltage at 500 V/μS.
Output Voltage Drop: Consistently at 1.8 V across models.
Off-State Leakage Current: Varies from 3 mA to 15 mA.
Minimum Working Current: Ranges from 80 mA to 200 mA.

Input Technical Data:

Input Voltage: Ranges from 3-32 VDC to 90-240 VAC/DC.
Control Current Range: Varies from 3-32 mA to 5-15 mA.
Control Pick-Up Voltage: Ranges from 3 V to 90 V.
Control Drop-Out Voltage: Ranges from 1 V to 60 V.

Input/Output Technical Data:

Maximum Closing Delay: For zero crossing commutation is 1/2 cycle or 20 ms.
Maximum Opening Delay: For zero crossing-instant commutation is 1/2 cycle or 30 ms.
Isolation Voltage: Consistently at 4000 V.

Thermal Data:

Operating Temperature: -20/+80 °C.
Storage Temperature: -40/100 °C.

Solid-State Relays (SSR) Models:

SSR08 Series: Includes models with output currents ranging from 10 A to 125 A, with various input and output voltage specifications.
Zero Crossing Commutation: Available for models with output currents from 10 A to 125 A.
Phase Angle Control Relays: Models SSR08-25240I, SSR08-40240I, and SSR08-50240I with input control of 4-20 mA.

Certifications and Standards:

UL and CE Certification: Ensures compliance with safety and performance standards.

Accessories:

Metal Oxide Varistors (MOV) and Heat Sinks: Available for enhancing relay performance.

Overview: This document is a technical catalogue from EL.CO. S.r.l. detailing various models of solid-state relays (SSRs), their specifications, and associated accessories. The document emphasizes that EL.CO. S.r.l. reserves the right to make changes without prior notice.

1. Derating Curves: The document includes derating curves for different SSR models, indicating performance variations under different thermal conditions. Models such as SSR08I-25 A, SSR08I-40 A, and SSR08I-50 A are discussed with and without heat sinks.

2. Solid-State Relays (SSR170 Series): The SSR170 series includes models like SSR170-25240AS and SSR170-50600CS, with specifications such as output current (25A and 50A), output voltage (up to 600 VAC), and input voltage (3-32 VDC, 90-280 VAC). Key features include zero crossing commutation, integrated varistor for overvoltage protection, and RoHS compliance.

3. Dual Phase Solid State Relay (SSR082 Series): This series features dual-phase relays with models like SSR082-50600A, offering output currents of 2 x 50 A and a load voltage range of 48-600 VAC. The document provides detailed technical data on input/output specifications and thermal data.

4. Monitoring Solid State Relays (SSR08W Series): These relays are designed for line and load monitoring, featuring zero crossing commutation and alarm output signals. The SSR08W-25240AS model is highlighted with specifications such as a nominal voltage of 240 VAC and an input voltage range of 6-24 VDC.

5. Instant Commutation Transistor (88D-10100 Model): This model is designed for instant commutation with an output current of 10 A and a load voltage range of 5-80 VDC. It features a control current range of 3-32 mA.

6. Accessories: The document lists accessories for solid-state relays, including metal oxide varistors (MOV) and heat sinks, which are essential for optimal relay performance.

7. Standards and Certifications: The relays conform to EC reference standards and have UL-CSA certifications, ensuring compliance with international safety and performance standards.

Technical Specifications:

Control Voltage: 3.5-32 VDC for SSR08D models, 12-32 VDC for SSR08D-251200A.
Output Voltage: Ranges from 3 to 200 VDC for SSR08D models, and 5 to 1200 VDC for SSR08D-251200A.
Output Current: Up to 40A for SSR08D models, and 25A for SSR08D-251200A.
Isolation Voltage: 2500V for SSR08D models, 4000V for general specifications.

Thermal Data:

Operating Temperature: -20/+80°C for SSR08D models, -30/+80°C for SSR01/02/05 models.
Storage Temperature: -40/100°C for all models.

Derating Curves: Derating curves are provided for free air and with heat sinks, indicating the maximum continuous load current based on ambient temperature.

Wiring Diagrams: Diagrams are included for various models, showing input and output connections, and load configurations.

Certifications:

VDE and CE certifications for SSR08D models.
UL-CSA certification for SSR01/02/05 models.

Accessories:

Metal Oxide Varistors (MOV) and heat sinks are available as accessories.

General Notes: EL.CO. S.r.l reserves the right to make changes without prior notice.

Overview: This document is a technical catalog for solid-state relays (SSRs) by EL.CO. S.r.l. It includes specifications, technical data, and selection tables for various SSR models, along with information on accessories and certifications.

Specifications:

Input-Output Insulation: 3,750 V for input-output insulation.
Operating Temperature: -30°C to +80°C for all models.
Storage Temperature: -40°C to +100°C.
Isolation Voltage: Up to 4000V for certain models.

Models and Technical Data:

SSR870/871/88D-360 Series: Features zero crossing and instant commutation types, with output currents of 3A to 5A and input voltages ranging from 3-32 VDC.
SSR91 Series: Designed for DC load commutation with a nominal load voltage of 60 VDC and features such as high reliability and high switching frequency.
SSR20/21 Series: Offers zero crossing commutation for AC models and instantaneous commutation for DC models, with output voltages from 12 to 275 VAC or 0 to 35 VDC.

Key Features:

Low control current and high input-output insulation.
RC filter protection for AC models.
VDE and CE certifications for compliance with EC standards.

Derating Curves: The document advises considering a derating of output current when multiple SSRs are installed side by side.

Accessories: Includes metal oxide varistors (MOV) and sockets and springs for specific SSR models.

Certifications: Models are certified under VDE and UL-CSA standards, ensuring compliance with international safety and performance standards.

Overview: This document is a technical catalog for solid-state relays (SSRs) produced by EL.CO. S.r.l. It includes detailed specifications, technical data, and operational guidelines for various models of SSRs, along with accessories and compliance information.

Specifications:

Critical Rate of Rise of Off-State Voltage: 400V/µS
Output Voltage Drop: 1.2V
Off-State Leakage Current: 1mA
Minimum Working Current: 50mA
Dimensions: Provided in mm
Input/Output Isolation: 2500V
Output Voltage Range: 12 to 275 VAC or 0 to 35V DC

Technical Data:

Nominal Voltage: 24V DC
Load Voltage Range: 0-35VDC
Output Current: 4A
Non-Repetitive Surge Peak Current: 40A at 10ms
Operating Temperature: -20 to +80°C
Storage Temperature: -40 to +100°C

Features:

Non-polarized input
LED indicators for input and output voltage
Timed output options: 4A-24VDC or 3A-240 VAC
Multi-function timing with four functions and time scales from 0.1s to 6h
Zero crossing commutation for AC models
RC filter protection for AC models
DIN rail mounting and 20 pole comb for parallel connection of SSRs

Models and Variants:

SDT-0424B: 24VAC/DC input, 4A output current
SAT-03240B: 24VAC/DC input, 3A output current
SDE-50048A: 10-40 VDC input, 500mA output current
SSR15-25240A: 4-32 VDC input, 25A output current
SSR07 Series: Various models with output currents of 25A and 40A, and input voltages ranging from 3-32 VDC to 200-265 VAC

Compliance and Certifications:

Conforms to EC standards
UL-CSA certifications available for certain models

Accessories: Includes options for metal oxide varistors (MOV), heat sinks, and wiring diagrams for proper installation and operation.

Overview: This document is a technical catalog for solid-state relays (SSRs) produced by EL.CO. S.r.l. It includes detailed specifications, wiring diagrams, and selection tables for various models of SSRs, specifically focusing on the SC3 and SM series.

1. Specifications:

SC3-08D Series: Designed for three-phase applications with a nominal voltage of 480 VAC and an output current of 3 A. It supports both zero crossing and instant commutation. The input voltage range is 6-32 VDC, with a peak voltage of 800 VAC and input-output insulation of 4000 V.
SC3-12D Series: Offers a range of models with output currents from 10A to 90A and supports both DC (4-32 VDC) and AC (90-280 VAC) control voltages. The load voltage range is 50-480 VAC, with peak voltages between 800 and 1200 V.
SM3 Series: Features models with output currents up to 5A and supports both zero crossing and instant commutation. The load voltage range is 20-510 VAC, with a peak voltage of 1200 V and input-output insulation of 5000 V.

2. Technical Data:

Input/Output Data: Includes control voltage ranges, control current ranges, pick-up and drop-out voltages, and input resistance for various models.
Thermal Data: Operating temperatures range from -30°C to +80°C, with storage temperatures from -40°C to +100°C.

3. Wiring Diagrams: Detailed diagrams are provided for proper connection of the relays, indicating input and output terminals and auxiliary contacts.

4. Accessories: The document lists accessories such as metal oxide varistors (MOV) and heat sinks, which are essential for the optimal performance of the SSRs.

5. Standards and Certifications: All products conform to EC standards and are CE certified, ensuring compliance with European safety and performance regulations.

6. Additional Features:

LED indicators for input voltage and auxiliary contact signaling.
Built-in varistor protection and non-polarized input for certain models.
Mechanical auxiliary contacts available for specific models.

Conclusion: The document provides comprehensive technical details necessary for selecting and implementing solid-state relays in various industrial applications, emphasizing flexibility, safety, and compliance with international standards.

Specifications:
The document outlines the specifications for solid-state relays (SSR) with an output voltage range of 12-275VAC and a repetitive peak off-state voltage of 600VAC. The output current is rated at 5A at 50°C, with a non-repetitive surge peak on-state current of 300A for 10ms. The I²t rating for fuse choice is 450A²S for 10ms. The critical rate of rise of off-state voltage is 1000V/µS, and the on-state output voltage drop is between 0.85V and 1.5V at 25°C with 5A/90mA. The off-state leakage current is 4mA, and the minimum working current is 90mA.

Standards and Accessories:
The relays conform to EC reference standards. Accessories include metal oxide varistors (MOV) and heat sinks. The relays are compact, DIN rail mountable, and feature universal input voltage ranges of 20-75VDC and 20-240VAC. They include an input voltage LED, zero crossing or instantaneous commutation, and a protected output with RC filter and varistor. The input-output insulation is rated at 2500V.

Technical Data:
The maximum closing delay for zero crossing commutation is 1/2 cycle, and for instant commutation, it is 10ms. The maximum opening delay for zero crossing-instantaneous commutation is 1/2 cycle. The operating temperature range is -20°C to +70°C, and the storage temperature range is -40°C to +100°C.

Installation and Protection:
When installing multiple SSRs side by side, a derating of output current should be considered. For heat sink installation, thermal grease should be used, and relays should be spaced apart to facilitate air flow. To protect SSRs from short circuits or overloads, ultrarapid fuses should be used, with the I²t value of the fuse being lower than that of the SSR. Varistors are recommended to protect against voltage spikes, with a response time between 20 and 50 ns.

Heat Sink Calculation:
The document provides a formula for calculating the appropriate heat sink for a solid-state relay based on current and ambient temperature. The formula considers the joint temperature of the semiconductor, ambient temperature, dissipated power, and thermal resistances between various components.

Technical Specifications:

Input Voltage: Ranges from 3-32VDC and 90-280VAC for various models.
Operating Temperature: -30 to +80°C, with storage temperature ranging from -30 to +100°C.
Control Current Range: 8-30 mA for DC and 4-20 mA for AC inputs.

Input/Output Technical Data:

Turn-on Time: Maximum of 10ms for DC and 40ms for AC.
Turn-off Time: Maximum of 10ms for DC and 80ms for AC.
Insulation Voltage: 4000V between input and output.

Output Technical Data:

Nominal Voltage: 240VAC and 600VAC options available.
Output Current: Rated at 25A and 40A, with forced cooling for higher current.
On-state Voltage Drop: 1.6VAC for 240VAC models and 1.8VAC for 600VAC models.
Off-state Leakage Current: 5 mA for all models.
Frequency Range: 47-63 Hz.

Design and Features:

Solid-state relays with zero crossing or random switching.
LED status indication and IP20 protection.
DIN rail and back plate mountable with built-in snubber.
CE certification and RoHS compliance.

Wiring and Connection Specifications:

Input and output connections support various wire types and gauges, with specified tightening torques.
Isolation voltage for input-output is 4000V, and terminal to case is 2500V.

Thermal Data:

Operating temperature ranges from -40 to +80°C, with storage up to 130°C.
Derating curves provided for high-temperature applications.

Accessories:

Includes metal oxide varistors (MOV) and heat sinks.

General Information:

EL.CO. S.r.l. reserves the right to make changes without notice.
All parameters measured at Ta=25°C.

Overview: This document provides technical specifications, standards, and application guidelines for solid-state relays (SSR) and semiconductor contactors, specifically the SSRSC1, SSRSC3, and RC3 series. It includes detailed input and output technical data, thermal data, and protection mechanisms.

Specifications:

Dimensions: Various models with dimensions ranging from 45x128x110 mm to 93x182.5x143 mm.
Input Technical Data: Control voltage ranges from 5-24 V DC or 24-230 V AC/DC, with maximum control voltage up to 32 VDC or 253 V AC/DC. Response time is up to 1 cycle.
Output Technical Data: Operational current varies by model, with maximums of 10A to 125A. Rated operational voltage up to 600VAC-50/60 Hz.
Thermal Data: Operating temperature range is -5 to 60°C, with storage temperature from -20 to 80°C. Cooling is by natural convection.

Standards and Approvals: Conforms to EC standards and approved by CAN/CSA-C22.2/UL Sdt No.508 for specific series.

Protection Features:

IP20 protection rating.
Built-in varistor and RC filter protection.
Zero crossing commutation to reduce network disturbances.
Thermal overload protection via optional thermostats (TO6290).

Application Examples: Suitable for switching various industrial loads such as heating elements, motors, and lamps in single-phase and three-phase applications.

Additional Notes: The document includes wiring diagrams and instructions for mounting and wiring. It also highlights the importance of current derating in high-temperature applications.

EMC Specifications:
The document specifies that the SPC 1 is compliant with IEC 60947-4-3 / EN 60947-4-3 standards for AC semiconductor contactors for non-motor loads. In burst firing control mode, no action is necessary. In phase angle control mode, if the current (I) is less than 10A, no action is needed as the internal filter suffices. However, if I is greater than 10A, a 1uF capacitor should be connected between N/L and L1.

Application Examples:
Two application scenarios are described: 1) A thermostat is connected in series with the control supply of the controller. If the heatsink temperature exceeds 90°C/100°C, the control supply is switched off, and it is switched on again when the temperature drops to approximately 70°C. 2) The thermostat is connected to a PLC or another controller for controlled shutdown in case of overheating.

Product Specifications:
The document provides detailed specifications for various solid-state relays (SSR) and semiconductor motor controllers. It includes information on line voltage, control voltage, motor load capacity, and dimensions. The SSRSMC3-DOL series is designed for accurate control of three-phase motors in applications requiring frequent starts and stops. The SSRSRC3 series is designed for reversing the direction of three-phase motors.

Technical Data:
Input and output technical data are provided, including control voltage range, operational current, leakage current, and response time. The document also specifies the thermal data, such as operating and storage temperatures, and cooling methods.

Protection and Standards:
The document outlines overload protection methods and mentions compliance with EC reference standards and approvals like CAN/CSA-C22.2 and UL Std No.508. It also highlights the importance of thermal overload protection using thermostats.

General Information:
The document emphasizes that the products are designed for class A equipment and may cause radio interference in domestic environments, requiring additional mitigation methods. It also notes that EL.CO. S.r.l reserves the right to make changes without notice.

Overview: The document provides technical specifications and guidelines for the use of solid-state relays (SSRs) and starting torque limiters (soft starters) for AC motors. It covers protection mechanisms, operational parameters, and installation instructions to ensure efficient and safe motor operation.

1. Voltage Kickback Prevention: The document highlights that the lifetime of semiconductor contactors is significantly longer than electromechanical contactors due to effective voltage kickback prevention from inductive motor windings.

2. Short Circuit Protection:

By Circuit Breaker: A correctly installed and adjusted overload relay in a 3-phase motor prevents total short circuits to earth or between phases. The winding limits the short circuit current to trigger the circuit breaker without damaging semiconductors. The magnetic trip response current is approximately 11 times the maximum adjustable current.
By Fuses: The document specifies maximum I²t values for fuses used with SSR models, ensuring protection against short circuits.

3. Overload Protection: Overload protection is achieved by installing a manual thermal magnetic circuit breaker on the motor's supply side. This setup complies with EN 60204-1 standards and provides necessary isolation and padlocking capabilities.

4. Starting Torque Limiter (Soft Starter): The SSRSTL3 series is designed for soft starting of AC motors, reducing shock and vibration. It includes adjustable ramp-up time and initial torque settings, suitable for both single-phase and three-phase motors across various voltage ranges.

5. Technical Specifications:

Operational Current: Models are available with operational currents of 15A or 25A.
Temperature Ratings: The document provides derating guidelines for high-temperature applications.
Protection Standards: The products conform to EC standards and are CE marked.

6. Installation and Adjustment: Instructions are provided for wiring, mounting, and adjusting ramp-up time and initial torque. The document emphasizes the importance of setting these parameters while the device is in the off state to prevent tripping the motor protection relay.

7. Applications: Examples include soft-starting motors with reversing capabilities using electronic or mechanical contactors, suitable for motors up to 11 kW.

Specifications:
The document outlines the specifications for the SSRSMC3/32...3/15 series AC semiconductor soft starters. These devices are designed to control the acceleration and deceleration of three-phase motors. The ramp-up and ramp-down times are adjustable from 0.5 to 10 seconds, and the initial torque can be adjusted from 0 to 85% of the nominal start torque, with an optional kick-start function.

Procedures:
The document provides detailed procedures for adjusting the ramp-up and ramp-down times, as well as the initial torque settings. It emphasizes the importance of setting these parameters correctly to ensure optimal motor performance and avoid mechanical surges.

Standards and Approvals:
The soft starters comply with the EN60947-4-2 standard and are CE marked. They are designed for class A equipment, and additional mitigation methods may be required in domestic environments to prevent radio interference.

Recommendations:
Users are advised to ensure that the trimmers are not set in intermediate positions to avoid corrupting the time and torque adjustments. The document also recommends using a manual thermal magnetic circuit breaker for overload protection, in accordance with EN 60204-1.

Technical Data:
The document includes detailed input and output technical data, such as control voltage range, operational current, and response time. It also provides information on the dimensions for DIN rail mounting and the cooling method.

Application Hints:
Examples of applications with the soft starter are provided, including line-controlled and input-controlled soft-start, as well as combining reversing electronic contactors with the soft starter for motor reversing applications.

Key Data from Tables:
The selection table provides information on line voltage, control voltage, and motor size compatibility for different models. The document also includes data on short-circuit protection using circuit breakers and fuses, with specific values for maximum I²t of the fuses.

Overview
This document is a technical guide on solid-state relays, focusing on thermal overload protection, functional diagrams, and the adjustment of time and torque settings for soft starters. It includes detailed instructions on wiring configurations, protection mechanisms, and application examples for motors.

Thermal Overload Protection
Thermal overload protection is achieved by inserting a thermostat into the designated slot on the right side of the static group. The system accepts two types of thermostats: TO6290. This protection ensures that the motor does not overheat by tripping the relay when necessary.

Functional Diagrams and Wiring
The document provides diagrams for standard and inside-delta wiring configurations for connecting soft starters to three-phase motors. It explains the importance of correct wiring to ensure proper motor function and protection.

Adjusting Time and Torque
Instructions are provided for adjusting the ramp-up time and initial torque using trimmers. It is crucial not to set the rotary switches between positions to avoid corrupting the pre-set time and torque adjustments. The soft starter reads these settings when in the off state.

Soft Starter Applications
Several application examples are provided, including line-controlled and input-controlled soft starts, as well as combining reversing electronic and mechanical contactors with soft starters. These examples illustrate how to achieve soft starting and stopping of motors, including reversing direction for motors up to and exceeding 4 kW.

Short-Circuit and Overload Protection
The document outlines methods for short-circuit protection using circuit breakers and fuses, specifying the maximum I²t values for different models. Overload protection is achieved by installing a manual thermal magnetic circuit breaker, which acts as a circuit isolator according to EN 60204-1 standards.

Recommendations
Ensure that trimmers are not set in intermediate positions to maintain accurate time and torque settings. Allow a delay of approximately 0.5 seconds between forward and reverse control signals to prevent voltage spikes when the motor stops.

Conclusion
This guide provides comprehensive instructions for setting up and protecting motors using solid-state relays and soft starters. It emphasizes the importance of correct settings and configurations to ensure efficient and safe motor operation.

Overview: This document provides technical specifications, procedures, and recommendations for modular power controllers and their accessories. It includes detailed information on models, technical data, functionalities, and wiring diagrams.

Specifications:

Modular Power Controller Models: Various models are available with output currents of 10A, 25A, and 50A, and output voltages ranging from 48 to 450V AC.
Technical Data: Includes dual LED displays, universal inputs for thermocouples and thermoresistances, and accuracy of ±0.5% span ±1 digit.
Power Supply: Options include 24V AC/DC or 100-240V AC.
Communication: RS485 serial port with MODBUS-RTU protocol.

Functionalities:

Control: Programmable PID or ON/OFF control with autotuning and self-tuning algorithms.
Alarms: Configurable alarms for no load or load in short conditions.
Outputs: Up to 4 outputs, including programmable options for digital input or logic output.

Wiring and Connections:

Wiring Diagrams: Detailed diagrams for connecting multiple modules and configuring auxiliary outputs.
Connections: 24 screw terminals for various connections, including power and communication.

Accessories:

Programming Key: KEYA01 for programming the controller via PC or USB to RS485 conversion.
Flat Cable: Used for connecting modular power controllers, available in different lengths.

General Information:

Mounting: DIN rail mounting is supported.
Protection: IP20 protection degree, with integrated fuse for output protection (except for 50A models).
Conformity: Complies with low voltage and electromagnetic compatibility directives.

Catalog excerpts

1 - RELE ALLO STATO SOLIDO 1 - SOLID-STATE RELAYS La produzione base dei rele allo stato solido EL.CO. si divide in tre gruppi principali: 1. Rele a commutazione zero (zero crossing) I rele a commutazione di zero innescano quando la tensione di uscita passa in prossimita dello zero e disinnescano sempre a corrente zero. Sono particolarmente indicati alla commutazione di carichi resistivi o capacitativi. 2. Rele a commutazione istantanea I rele a commutazione istantanea innescano simultaneamente al segnale di ingresso e quindi in ogni punto della curva sinusoidale della tensione di uscita e disinnescano sempre a corrente zero. Sono particolarmente indicati alla commutazione di carichi induttivi. 3. Rele per commutazione in D.C. I rele per commutazione di carichi in corrente continua innescano e disinnescano simultaneamente alla tensione di controllo. Applicazioni consigliate: I rele allo stato solido trovano particolare applicazione dove e richiesta una elevata frequenza di commutazione unita anche alla possibilita di commutare, mediante tensioni di controllo limitate (3V-3mA), correnti elevate (90 A-480V) con un isolamento di 4KV tra ingresso e uscita. Presentano inoltre una totale tollerabilita alle vibrazioni, all'ossidazione, agli urti meccanici e non danno origine ne ad archi ne a rimbalzi. The EL.CO. standard production of the solid state relays is divided into three main groups. 1. Zero-crossing relays The zero crossing relays pick-up when the output voltage is near to zero and always drop-out at zero-current. They are particularly suitable for the commutation of resistive and capacitive loads. 2. Instant commutation relays The instant commutation relays pick-up simultaneously to the input signal and then at each point of the sinusoidal output voltage curve and drop-out at zero-current. They are particularly suitable for the commutation of inductive loads. 3. D.C. commutation relays The relays for D.C. load commutation pick-up and drop-out simultaneously to the control voltage. Recommended application: The solid-state relays can particularly be used where a high commutation frequency is required together with the possibility of commutating, by means of limited control voltage (3 V-3 mA), high currents (90 A-480V) with 4 KV insulation between input-output. They are extremely resistant to vibrations or oxidation as well as to mechanical impacts and do not cause arcs nor fluctuations. CARATTERISTICHE GENERALI - GENERAL FEATURES Tutti i rele sono provvisti di filtro snubber che li protegge da eventuali inneschi indesiderati causati da una velocita di crescita della tensione in uscita troppo elevata; tuttavia in talune applicazioni il dispositivo non risulta protetto a causa di elevati spike di tensione presenti talvolta negli ambienti industriali. Al dispositivo in questi casi deve essere applicato un varistore in parallelo all'uscita, in modo da proteggerlo dai sopracitati spike. Per proteggere invece i dispositivi da sovracorrenti e bene installare per ogni fase un fusibile extra rapido e non un normale fusibile che interverrebbe a dispositivo gia danneggiato. NORMATIVE CE DI RIFERIMENTO: Direttiva 2014/35/EU, direttiva Bassa tensione (BT) Direttiva 2014/30/EU, direttiva compatibility elettromagnetica (EMC) All the solid state relays are provided with a snubber filter, which protects them from any undesirable spikes caused by an excessive speed of the output voltage. However, in certain applications, it has been found that the device is still not protected, as a result of the elevated voltage spikes which may sometimes be present in industrial environments. In such cases, a varistor must be applied to the device, in parallel with at the output, so as to protect the device from the above said spikes. To protect the devices from overcurrents, it is recommended that a fast-reacting fuse be installed for each phase, rather than a normal fuse which would only intervenes once the device has already been damaged. EC REFERENCE STANDARDS: Low Voltage Directive (LVD) 2014/35/EU Electromagnetic Compatibility (EMC) Directive 2014/30/EU Catalogo generate Genera/ catalogue EL.CO. S.r.l si riserva di apportare modifiche senza alcun preavviso. - EL.CO. S.r.l. Reserves the right to make changes without obligation of notice.

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1 - RELÈ ALLO STATO SOLIDO 1 - SOLID-STATE RELAYS RELÈ ALLO STATO SOLIDO SOLID-STATE RELAYS Catalogo generale General catalogue EL.CO. S.r.l si riserva di apportare modifiche senza alcun preavviso. - EL.CO. S.r.l. Reserves the right to make changes without obligation of n

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1 - RELÈ ALLO STATO SOLIDO 1 - SOLID-STATE RELAYS Catalogo generale General catalogue EL.CO. S.r.l si riserva di apportare modifiche senza alcun preavviso. - EL.CO. S.r.l. Reserves the right to make changes without obligation of no

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1 - RELE ALLO STATO SOLIDO 1 - SOLID-STATE RELAYS RELE STATIC! A SCR SERIE 860/861 860/861 SERIES SCR SOLID STATE RELAYS Dimensioni in mm. Dimension in mm. TABELLA SELEZIONE RELE' - RELAY SELECTION TABLE * Corrente nominale 10/25/40/70/90A * Tensione di uscita da 20 a 530 VAC * Commutazione zero crossing o istantanea * Bassa corrente pilotaggio * Tensione di picco fino a 1200 V * Isolamento ingresso uscite 4000 V * Protezione con filtro RC * Omologazioni VDE -CE * Rated operational current up to I0/25140170190A * Zero crossing or instantaneus commutation * Output voltage from 20 to 530 VAC *...

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1 - RELE ALLO STATO SOLIDO 1 - SOLID-STATE RELAYS Catalogo generate General catalogue EL.CO. S.r.l si riserva di apportare modifiche senza alcun preavviso. - EL.CO. S.r.l. Reserves the right to make changes without obligation of notice.

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SOLID-STATE RELAYS

SOLID-STATE RELAYS

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