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- Terasaki (Europe) Circuit Breaker
- Moulded Case Circuit Breakers
Moulded Case Circuit Breakers
Moulded Case Circuit Breakers
Terasaki offers a 12-month warranty against defects in materials and workmanship. The company is ISO 9001 accredited, ensuring high-quality standards in manufacturing, sale, and distribution.
Customers receive free technical support and application software to assist with product selection and protection studies. Ordering is streamlined with color-coded catalog sections and order codes.
Terasaki circuit breakers are designed to protect against electrical faults, tested at their Osaka headquarters, and certified by DEKRA to international standards. The company is a leader in the marine market with extensive export experience.
Terasaki holds ISO 14001 for environmental management and OHSAS 18001 for occupational health and safety. Products are designed for long life cycles using eco-friendly materials.
TemBreak 2 circuit breakers offer field-installable accessories, safety locks, compact designs, and superior temperature performance. They comply with international standards like IEC 60947-2 and are tested for high breaking capacities.
TemBreak 2 MCCBs exceed standard requirements, offering features like direct opening action for enhanced safety. They comply with IEC and NEMA standards and are approved by marine organizations.
The modular design of TemBreak 2 allows for easy disassembly and recycling. Lightweight, eco-friendly materials reduce waste and environmental impact.
The catalog includes a wide range of MCCBs from 12A to 3200A, suitable for various applications including 1000V AC and DC. Detailed specifications and ratings are provided for each product type.
Models include E250, S250, ZE125, TB2 S125, and others, with maximum current ratings ranging from 125A to 3200A. Available in 3 and 4 pole configurations, with specific ratings provided for 50°C. Rated operational voltage (Ue) up to 690V AC and 250V DC, insulation voltage (Ui) up to 800V, and impulse voltage (Uimp) of 8kV. Ultimate breaking capacity (Icu) and service breaking capacity (Ics) are specified for various voltages.
Includes fixed thermal, fixed magnetic, adjustable thermal, and adjustable magnetic options. Installation options include front connection, extension bar, cable clamp, rear connection, and DIN rail mounting.
Height, width, and depth are specified for 3 and 4 pole models. Weight is detailed for each model, with 3 pole models typically weighing around 1.5 kg and 4 pole models around 1.9 kg.
Includes direct opening action, toggle operation, and motor operation. Electrical and mechanical cycles are specified, with some models rated for up to 30,000 cycles.
Compliance with IEC 60947-1, IEC 60947-2, and other international standards ensures the products meet global safety and performance criteria.
Specifications and features of residual current protection devices are covered, essential for detecting earth leakage currents and preventing electrical hazards.
DC protection devices safeguard DC circuits from overcurrents and short circuits, crucial for maintaining the integrity and safety of DC power systems.
Details various models offering adjustable thermal and magnetic protection, designed to handle different current ratings and provide flexibility in setting protection characteristics.
Features adjustable dials for thermal (IR) and magnetic (Ii) protection, allowing users to set the rated current and short-circuit tripping thresholds.
Provides detailed tables and time/current characteristic curves for various models, illustrating the range of adjustable settings and their impact on tripping times and current thresholds.
Available with electronic protection units offering overload, delayed short-circuit, and instantaneous protection.
Optional features such as ground fault trip, neutral protection, and preferential trip alarm are available for certain models.
Emphasizes the versatility and adaptability of TemBreak 2 circuit breakers, highlighting their suitability for a wide range of applications.
Outlines various protection characteristics for circuit breakers, including electronic protection with measurement and data communication.
Time-delay settings are provided for different protection modes, with specific tolerances.
Specifies tolerances for current settings and time-delay settings, ensuring compliance with safety standards.
Includes selecting the appropriate model and settings based on application requirements.
Includes time/current characteristic curves for various models, showing the relationship between tripping time and percent rated current.
Important parameters include the rated current, magnetic trip current, and the adjustable settings for thermal and magnetic protection.
Outlines the integration of shunt trip devices (SHT) or undervoltage trip devices (UVT) into breakers for emergency OFF functions.
The anti-pumping function prevents the latch release coil from being excited when the breaker is ON.
Door-mounted handles allow manual operation of breakers from outside control centers, complying with IEC 60204-1.
Terminal covers for front and rear connections provide protection against direct contact with live parts and additional insulation.
Interlocking accessories prevent simultaneous supply from multiple AC sources.
Provides detailed technical specifications and operational guidelines for the TemTransfer 2 Automatic Changeover Controller and associated accessories.
The TemTransfer 2 operates within an AC supply voltage range of 90V to 305V (L-N) and provides a DC output of 1A at 24V DC.
The system monitors mains supply for under/over voltage and frequency, switching to generator power if parameters fall outside limits.
Specifies valid and invalid combinations for MCCB operations to prevent damage.
An optional wiring panel simplifies connections for the TemTransfer 2 system.
The motor operator allows for automatic resetting of breakers, with optional auto-reset features.
The motor operator can be easily installed or removed from the breaker by rotating two knobs.
Includes symbols for DC-rated motor operators and control power circuits.
Allows operation of a circuit breaker behind a closed compartment door.
Interpole barriers provide insulation between phases at MCCB terminals.
Allows remote tripping of MCCB by applying rated coil voltage.
Latch release coil is excited, closing the breaker quickly.
Outlines the specifications for the Type 1250 and 1600A Motor Operator, highlighting features such as positive contact indication with color coding.
Includes an alarm switch for automatic reset and recharging of the closing spring.
Describes door-mounted handles for manual operation of breakers, compliant with IEC 60204-1.
Interpole barriers and terminal covers are discussed as insulation accessories for MCCBs.
Provides details on connection methods for MCCBs, including the use of serrated terminal surfaces for better grip.
Provides detailed information on the connection and mounting accessories for TEMBREAK 2 MCCBs and switch disconnectors.
Outlines the dimensions and specifications for various frame sizes.
Describes various connection and mounting options, including plug-in mounting systems.
Detailed installation procedures are provided, including the use of insulation plates.
Emphasizes the importance of maintaining specific insulation distances between MCCBs and earthed metal parts.
Standard installation conditions are specified, including operating temperature, humidity, and altitude.
Provides temperature ratings for different MCCB models.
Various connection types are described, including front and rear connections.
Provides technical specifications and installation guidelines for TEMBREAK 2 LITE moulded case circuit breakers and switch disconnectors.
Various screw types such as hex head, pan head, and hex socket head are specified with their respective sizes and torque ranges.
Instructions for front and rear connections, including the use of terminal screws and extension bars, are provided.
The document lists the rated breaking capacities (Icu/Ics) for various breaker types.
Ensure all exposed conductors are insulated using tape or tubes to prevent electrical faults.
Provides detailed specifications for various types of Molded Case Circuit Breakers (MCCBs) and Switch Disconnectors.
Instructions for panel cutout and the positional relationship between the hinge and handle are detailed.
Terminal covers are available for both front and rear-connected MCCBs.
Interpole barriers are used to enhance electrical insulation between poles.
Details on terminal blocks for front and rear-connected MCCBs are provided.
Ensure correct installation by following specified dimensions and mounting instructions.
Provides detailed specifications, order codes, and accessory information for various models of circuit breakers and related components.
Lists multiple models with their respective current ratings (IR) and breaking capacities (Icu) at specified voltages.
Detailed order codes are provided for different models and configurations.
Outlines various field-fit accessories such as auxiliary switches, alarm switches, shunt trips, undervoltage trips, and mechanical interlocks.
Electronic protection codes are explained, including LSI (Long-time, Short-time, and Instantaneous).
Information on front connection (FC) and plug-in MCCB configurations is provided.
Suggests ordering one plug and one socket for each internal accessory to ensure compatibility.
Emphasizes the importance of selecting the correct order codes and accessories to match the specific requirements of the electrical system.
Provides detailed order codes and specifications for various models of Molded Case Circuit Breakers (MCCBs) and their accessories.
- Accessories: Lists various accessories available for TB2 S250 and S/H/L 250 frames.
- Order Codes for TB2 H/L 400 Frame: Details the order codes for electronic MCCBs.
- Protection Codes: Explains the electronic protection codes used in MCCBs.
- MCCBs with Measurement and Data Communication: Provides order codes for MCCBs equipped with measurement and data communication capabilities.
- Specifications for Different Frames: Includes detailed specifications for TB2 E/S 630 frames.
- Each accessory and MCCB model is associated with a unique order code.
- Protection codes provide critical information about the functionalities and safety features of the MCCBs.
- External accessories, such as neutral CTs, are often required for specific protection functions.
- Includes detailed specifications for MCCBs, including their interrupting capacity (Icu) at various voltages.
Catalog excerpts
OUR CUSTOMER CARE COMMITMENTS Terasaki supply circuit breakers which protect people and equipment from electrical faults. Safety and protection are the prime purposes of our products. Our products are designed and tested at our headquarters in Osaka, Japan. Our test laboratory meets the requirements of DEKRA (formerly KEMA) and is used to test and certify our products to international standards. Quality is Guaranteed All products supplied from this catalogue carry a guarantee against defects in materials and workmanship for a period of 12 months from date of purchase as standard. Quality is Accredited Terasaki has ISO 9001 accreditation for the manufacture, sale and distribution of all products featured in this catalogue. Technical Support is Free We offer free technical support and application software to all customers. This could range from selecting a product for an unusual application through to carrying out a protection study. Ordering is Easy We have made ordering easy for you by colour coding the sections of this catalogue and including order codes Sales Order Line We supply our products to switchboard builders, shipbuilders and equipment manufacturers. We are global market leaders for switchgear in the marine market. Terasaki have worldwide export experience and language skills to support your business. Please read further to discover the benefits of TemBreak 2.
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Moulded Case Circuit Breakers Miniature Circuit Breakers Distribution Boards NUCLEAR POWER: Ringhals, Sweden TERASAKI DESIGN CENTRE AND HEADQUARTERS ARE IN JAPAN DATA CENTRE: Telehouse London, UK SOLAR POWER: South Italy POWER PLANT: West County Energy Centre, Florida, USA AUTOMOTIVE: Toyota Manufacturing Plant, Argentina DESALINATION PLANT: Spain Founded in Japan to make switches for ships Terasaki develop circuit breakers The Ultimate Safety Breaker Developed the first current limiting breakers OIL PRODUCTION: Sakhalin Island, Russia ALUMINIUM SMELTER: ALBA, Bahrain MARINE: Oil Tanker “Belokamenka”,...
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10 REASONS TO USE TEMBREAK 2 1. FIELD-INSTALLABLE ACCESSORIES • Most accessories can be fitted by the switchboard builder or added by the end-user. • All accessories are endurance tested to the same level as the host MCCB. 10 REASONS TO USE TEMBREAK 2 6. CIRCUIT BREAKER WITH INTEGRAL RESIDUAL CURRENT PROTECTION (CBRs) Terasaki CBRs deliver integrated protection from earth leakage faults, overloads and short-circuits in one device. Ideal for the mining industry, temporary site supplies, heavy industry and commercial building use. 7. DIRECT OPENING ACTION 2. SAFETY LOCK FOR PLUG-IN VERSIONS Under...
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WELCOME TO TEMBREAK 2 Visual Safety You can easily see if a breaker is open, closed or tripped. SAFETY+ coloured indicators boldly display the ON or OFF status. The indicators are fully covered if a breaker trips, and black is the only visible colour. Terasaki have an innovative approach to product design. Our goal is to develop products which not only meet, but exceed recognised standards. We use our knowledge of related applications to improve circuit breaker designs. For instance, when developing the Direct Opening Action, we applied ideas from a machinery safety standard to the design of...
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WELCOME TO TEMBREAK 2 JAPANESE DESIGN: EXCEEDING STANDARDS JAPANESE DESIGN: REDUCING ENVIRONMENTAL IMPACT Safety Plus Longer Life Cycle TemBreak 2 MCCBs exceed the requirements of recognised standards. It makes good environmental sense to install a product with a long life expectancy. If you install a TemBreak 2 MCCB, you can expect it to stay in service for at least 30,000 mechanical operations (250A Frame). This is 22,000 more operations than recommended by IEC 60947-2, the international standard for circuit breakers. International Compliance • The TemBreak 2 MCCB complies with the international...
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TEMBREAK 2 & TEMBREAK MCCBS FROM 12A TO 3200A • MCCBS FOR 1000V AC MCCBS FOR 1000V DC • MCCBS WITH INTEGRAL RCD SWITCH DISCONNECTORS • MEASUREMENT AND DATA COMMUNICATION RATINGS AND SPECIFICATIONS PROTECTION CHARACTERISTICS ORDER CODES The Ultimate Safety Breaker APPLICATION DATA The Ultimate Safety Breaker
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Frame Reference TEMBREAK 2 MOULDED CASE CIRCUIT BREAKERS TEMBREAK 2 MOULDED CASE CIRCUIT BREAKERS Pages 15 - 22 TEMBREAK 2 CIRCUIT BREAKERS WITH ICU = 70KA AT 690V AC Page 23 TEMBREAK 2 CIRCUIT BREAKERS FOR 1000V Ac TEMBREAK 2 CIRCUIT BREAKERS FOR 1000V AC TEMBREAK 2 LITE SPACE SAVING, MONEY SAVING MOULDED CASE CIRCUIT BREAKERS Pages 25 - 28 TEMBREAK 2 CIRCUIT BREAKERS WITH INTEGRAL RESIDUAL CURRENT PROTECTION (CBR) TEMBREAK 2 SWITCH DISCONNECTORS TEMBREAK 2 CIRCUIT BREAKERS AND SWITCHDISCONNECTORS FOR USE ABOVE 250V DC TEMBREAK 2 LITE SPACE SAVING, MONEY SAVING MOULDED CASE CIRCUIT BREAKERS...
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TEMBREAK 2 MOULDED CASE CIRCUIT BREAKERS MCCB Electrical Characteristics to IEC 60947-2, EN 60947-2, JIS C 8201-2-1 ANN.1, AS/NZS 3947-2, NEMA AB-1 Quantity Model Number of Poles Type Nominal current ratings Electrical characteristics Rated operational voltage Rated insulation voltage Rated impulse withstand voltage Frame Reference Ultimate breaking capacity (IEC, JIS, AS/NZS) Service breaking capacity (IEC, JIS, AS/NZS) Rated breaking capacity (NEMA) Adjustable thermal, adjustable magnetic Fixed thermal, fixed magnetic Microprocessor Utilisation category Installation Front connection (FC) Extension...
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RATINGS AND SPECIFICATIONS RATINGS AND SPECIFICATIONS TEMBREAK 2 MOULDED CASE CIRCUIT BREAKERS MCCB Electrical Characteristics to IEC 60947-2, EN 60947-2, JIS C 8201-2-1 ANN.1, AS/NZS 3947-2, NEMA AB-1 © MCCB cannot be used in IT systems at this voltage. TemBreak The Ultimate Safety Breaker ■ standard • Optional - Not Available © Not fully rated at 50°c refer to Temperature Ratings The Ultimate Safety Breaker TemBreak page
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TEMBREAK 2 MOULDED CASE CIRCUIT BREAKERS MCCB Electrical Characteristics to IEC 60947-2, EN 60947-2, JIS C 8201-2-1 ANN.1, AS/NZS 3947-2, NEMA AB-1 Quantity Model Number of Poles Type Nominal current ratings Electrical characteristics Rated operational voltage Rated insulation voltage Rated impulse withstand voltage Ultimate breaking capacity (IEC, JIS, AS/NZS) Service breaking capacity (IEC, JIS, AS/NZS) Rated breaking capacity (NEMA) Rated short-time withstand current Frame reference Max In (A) of Frame Adjustable thermal, adjustable magnetic Fixed thermal, fixed magnetic Microprocessor Utilisation...
Open the catalog to page 10All Terasaki (Europe) Circuit Breaker catalogs and technical brochures
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