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Terasaki Electric Circuit Breaker
Air Circuit Breakers with enhanced OCR

Air Circuit Breakers with enhanced OCR

Product catalog summary

Introduction
Terasaki Electric Co., Ltd., founded in 1923, is a prominent manufacturer of circuit breakers, known for its TemBreak and TemPower series. The company has a global presence and is recognized for its reliable and high-performance products.

Certifications and Standards
Terasaki holds ISO9001 and ISO14001 certifications, ensuring quality management and environmental responsibility. Their products meet international standards like IEC 60947-2 and BS EN 60947, guaranteeing global reliability.

Product Overview

TemPower Series: Air circuit breakers with advanced communication capabilities for high-performance applications.
TemBreak Series: Moulded case circuit breakers available in various models for different applications, including economical and high-fault level protection.
Additional Products: Earth-leakage relays, power monitoring equipment, and other electrical distribution equipment.

Global Presence
Terasaki operates internationally with affiliates in Europe, Asia, and South America, maintaining a robust global network.

Testing and Reliability
The company conducts extensive testing, including short-circuit, overload, and endurance tests, to ensure product reliability and safety.

Specifications

Frame Sizes and Types: Frame sizes range from 100A to 2500A, with types such as TL, XS, and XE series.
Rated Current and Voltage: Rated currents at 45°C, insulation voltages up to 690V AC, and operational voltages for AC and DC.
Breaking Capacity: Specific AC and DC rated breaking capacities for different voltage levels.

Dimensions and Weight
Dimensions are provided in millimeters, with weight in kilograms for each type.

Connections and Mountings
Options include front terminal screw connections, rear bolt stud connections, and plug-in types for switchboards and distribution boards.

Standard Features
Includes on/off color indication and trip buttons.

Accessories

Internally mounted options: auxiliary switches, alarm switches, shunt trips, and undervoltage trips.
Externally mounted options: motor operators, panel mounts, and various handle types.

Additional Information

Specific configurations for mining series and non-automatic trip breakers.
Endurance and switching current capacities for different models.

Protective Functions
Adjustable thermal and fixed magnetic trips, as well as adjustable thermal and magnetic trips.

Approvals and Breaking Capacities
Approvals and applicable breaking capacities to marine standards, with detailed tables for AC and DC rated breaking capacities.

Earth-leakage Relays
Specifications include rated control voltage, sensitivity current, operating time, and mounting options.

Power Monitoring Equipment
The TemMeasure system monitors power consumption, supporting both 3-phase and single-phase circuits with RS-485 serial transmission.

TemPlug System
Provides a direct bus plug-in mounting base, facilitating downsizing and standardization of switchboards.

Phase Standardization
Standardizes the order of load-side phases to R, S, and T from the top, regardless of the breaker's mounting orientation.

Safety Improvements
The TemPlug system enhances switchboard safety by separating bus and breaker sections.

Operating Conditions
Standard conditions include an ambient temperature range of -5°C to 40°C, relative humidity below 85%, and altitude below 2000m. Special conditions are outlined for low-temperature, anti-fungus, and highly anti-corrosive circuit breakers.

Contact Information
Contact details for Terasaki's offices in Europe, Italy, Spain, Scandinavia, Singapore, Malaysia, Brazil, China, and Japan.

Catalog excerpts

Air Circuit Breakers with enhanced OCR-1

Innovators in Protection Technology Low-Voltage Circuit Breakers Selection Guide

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Air Circuit Breakers with enhanced OCR-2

circuit breakers. Our mature product the wide ranging needs of our customers. line supports In September 1993, Terasaki obtained certification for the world quality assurance standard ISO9002. In 1994, we obtained certification for the even more rigorous ISO9001 which covers additional items such as “Management Responsibilities”, “Employee Training”, “Design and Development”, and “Service”. In the future, we will respond to the even higher level of global needs with “international reliability”. In April 2000, Terasaki was certified as conforming to ISO 14001, an international environment-related...

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Air Circuit Breakers with enhanced OCR-3

■ Established: ■ President: ■ Capital: ■ Number of employees: ■ Sales: (Mar. 2004) October 1,1923 Masakazu Fujita 641 million yen 813 19,353 million yen • Marine Systems Division: Power distribution systems, Engine monitoring & control systems, General instrumentation • Industrial Systems Division: Power distribution system, Co-generation system, Independent generation plant (distributed power supply), System engineering, Electronic equipment and systems for Circuit Breaker Division factory automation, Monitoring & control system Marine Systems Division Medical tools and equipment • Circuit Breaker...

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Air Circuit Breakers with enhanced OCR-4

TERASAKI Global Network Overseas Affiliates q TERASAKI SKANDINAVISKA AB SKOGÅS SWEDEN w TERASAKI (EUROPE) LTD. Glasgow, SCOTLAND U. K. e TERASAKI ESPAÑA, S.A.U. Barcelona, SPAIN TERASAKI ELECTRIC CO., LTD. Osaka, JAPAN Headquarter Milano, ITALY t TERASAKI ELECTRIC (M) SDN. BHD. Shah Alam, MALAYSIA y TERASAKI CIRCUIT BREAKERS (S) PTE. LTD. SINGAPORE u TERASAKI ELECTRIC CO., (FAR EAST) PTE. LTD. SINGAPORE i TERASAKI ELECTRIC (CHINA) LIMITED Zengcheng, CHINA o TERASAKI DO BRASIL LTDA. Rio de Janeiro, BRAZIL ■TERASAKI ELECTRIC CO., LTD. (JAPAN) 5 ● TERASAKI ELECTRIC (M) SDN. BHD. (MALAYSIA) 9 ● TERASAKI...

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Air Circuit Breakers with enhanced OCR-5

TERASAKI is always pleased to send you the world’s top-class products. Certifications, Authorizations or Approvals by World's Leading Organizations Air Circuit Breakers Moulded Case Circuit Breakers ASTA/U.K. ASTA CERTIFICATION SERVICES ASTA CERTIFICATION SERVICES State Electricity Commission of Victoria State Electricity Commission of Victoria Lloyd’s Register of Shipping Lloyd’s Register of Shipping Bureau Veritas Bureau Veritas Germanischer Lloyd Germanischer Lloyd American Bureau of Shipping American Bureau of Shipping Nippon Kaiji Kyokai Already for many decades TERASAKI has been internationally...

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Air Circuit Breakers with enhanced OCR-6

Appearance of major products TemBreak Air Circuit Breakers with enhanced OCR Moulded Case Circuit Breakers Air Circuit Breakers (AME series for Generator Protection) Direct bus plug-in mounting base Power Monitoring Equipment

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Air Circuit Breakers with enhanced OCR-7

Air Circuit Breakers AR Standard Series AMPERE RATING(A) TYPE RATED CURRENT (max) [In](A) q w IEC, EN, AS JIS NEMA, ANSI Marine NEUTRAL POLE AMPERES FRAME (A) NUMBER OF POLES e r RATED PRIMARY CURRENT OF OVER–CURRENT RELEASE [ICT](A) • for general feeder circuit use RATED CURRENT OF OVER–CURRENT RELEASE(A) • for generator protection use [In] is generator rated current. AC RATED INSULATION VOLTAGE [Ui](V. 50/60Hz) t RATED OPERATIONAL VOLTAGE [Ue](V. 50/60Hz) y AC RATED BREAKING CAP [kA sym rms]/MAKING CAP [kA peak] IEC,EN,AS AC 690V u [Ics = Icu] 440V NEMA AC 600V ANSI 480V 240V JIS AC 550V 460V...

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Air Circuit Breakers with enhanced OCR-8

Air Circuit Breakers AR High Fault Series AMPERE RATING(A) TYPE RATED CURRENT (max) [In](A) q w IEC, EN, AS JIS NEMA, ANSI Marine NEUTRAL POLE AMPERES FRAME (A) NUMBER OF POLES e r RATED PRIMARY CURRENT OF OVER–CURRENT RELEASE [ICT](A) • for general feeder circuit use RATED CURRENT OF OVER–CURRENT RELEASE(A) • for generator protection use [In] is generator rated current. AC RATED INSULATION VOLTAGE [Ui](V. 50/60Hz) t RATED OPERATIONAL VOLTAGE [Ue](V. 50/60Hz) y AC RATED BREAKING CAP [kA sym rms]/MAKING CAP [kA peak]¶ IEC,EN,AS AC 690V u [Ics = Icu] 440V NEMA AC 600V ANSI 480V 240V JIS AC 550V...

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Air Circuit Breakers with enhanced OCR-9

Air Circuit Breakers AT•AH Series Frame Size (A) Type ° RATED CURRENT [In] (A) (Max.) q IEC, BS, VDE, AS JIS JEC NEMA, ANSI Marine Neutral Pole Amperes Frame (A) w Number of Poles e ° RATED PRIMARY CURRENT OF OVER-CURRENT TRIP DEVICES [I CT] (A) • for general feeder circuit use ° RATED CURRENT OF OVER-CURRENT TRIP DEVICES [Io] (A) • for generator protection use ([Io] is generator rated current) AC Rated insulation voltage [Ui] (V) r Rated operational voltage [Ue] (V) t ° AC RATED BREAKING CAP.(kA sym.)/MAKING CAP.(kA peak) with INST AC 690V !1 [Ics]=100%[Icu] 600V !1 IEC 500V BS Up to 415V VDE...

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Air Circuit Breakers with enhanced OCR-10

Air Circuit Breakers AME Series for Generator protection Frame Size [A] Type Number of poles Rated current of overcurrent trip device [A] (ln is generator rated current) Rated insulation voltage (Ui) [VAC] Rated frequency [Hz] ° AC RATED BREAKING CAPACITY [kA sym. rms.] /RATED MAKING CAPACITY [kA peak] LR, AB, GL, with INST 460V BV, NK without INST q 460V Rated short-time current (lcw) [kA, rms.] ° OPERATION Direct manual External manual (option) Motorized (option) ° DIMENSIONS (mm) rear-connected (RC)/plug-in (PM) a b c d ° CONNECTIONS AND MOUNTINGS Rear connected Flat bar stud RC Plug-in For...

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Air Circuit Breakers with enhanced OCR-11

TemBreak z Moulded Case Circuit Breakers Economical XE Series Frame Size [A] Type Number of Poles Outside view ° RATED CURRENT (In) [A] at 40°C (45°C for marine applications) Rated impulse withstand voltage (Uimp) [kV] Rated insulation voltage (Ui) [VAC] ° AC RATED BREAKING CAPACITY [kA sym. rms.] JIS C 8370 550V 460V 220V IEC 60947-2 Icu/Ics 690V BS EN 60947-2 500V 440V 415V 380V 240V NEMA AB-1 600V 480V 240V Without Inst. 240-690V ° DC RATED BREAKING CAPACITY [kA] q 250V 125V Rated short time current (lcw) [kA. rms.] Utilization Category ° DIMENSIONS (mm) a d a c b b c d Weight (kg) ' marked...

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