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Low Voltage Breakers
Low Voltage Breakers
Terasaki Electric Co., Ltd., founded in 1923, is a prominent manufacturer of circuit breakers, known for its innovative solutions worldwide. The company introduced its first breaker in Japan in 1947 and is recognized for the TemBreak and TemPower series, which are acclaimed for their reliability and performance.
Terasaki holds ISO9001 and ISO14001 certifications, ensuring adherence to quality management and environmental standards. Their products comply with international standards such as IEC 60947-2 and BS EN 60947, and are certified by organizations like ASTA, Lloyd’s Register, and Bureau Veritas.
- TemPower Series: Air circuit breakers with advanced communication features, designed for high-performance applications.
- TemBreak Series: Moulded case circuit breakers available in various models for different needs, including economical, standard, high-fault level, and motor protection series.
- Other Products: Includes earth-leakage relays, power monitoring equipment, and specialized circuit breakers.
The catalogue details specifications for each product series, including rated current, voltage, breaking capacity, and operational life. Air circuit breakers are designed for high fault levels and come in various configurations to suit diverse applications.
Terasaki has a robust international presence with affiliates in Europe, Asia, and South America, ensuring global product availability and support.
Terasaki remains committed to innovation and expanding its product offerings to meet global market demands, with a focus on quality and environmental sustainability.
The document provides comprehensive specifications for TemBreak Moulded Case Circuit Breakers (MCCBs) and related accessories, covering models, ratings, dimensions, connections, mountings, and available accessories.
- Frame Sizes: MCCBs range from 100A to 2500A.
- Rated Current and Voltage: Rated currents at 45°C, with insulation voltages up to 690V AC.
- Short Circuit Capacity: Rated short circuit making capacities with peak values in kA.
- Dimensions: Detailed dimensions and weight specifications for each model.
- Options include front terminal screw connections, rear bolt stud connections, and plug-in types for switchboards and distribution boards.
- Draw-out options are also available.
- On/off color indication and trip buttons are standard features.
- Internally mounted options: auxiliary switches, alarm switches, shunt trips, and undervoltage trips.
- Externally mounted options: motor operators, panel mounts, breaker mounts, and various handle types.
- Additional accessories: handle holders, handle locks, terminal covers, interpole barriers, and door flanges.
- Standard configurations are marked, with optional standards specified upon ordering.
- Symbols used include ' for standard, õ for optional, ¡ for available, and — for not available.
Includes rated current at 45°C, rated impulse withstand voltage, and rated insulation voltage. AC and DC rated breaking capacities are specified for various voltages, adhering to standards like IEC 60947-2 and NEMA AB-1.
Dimensions in millimeters and weight in kilograms. Various connection and mounting options are available.
Features adjustable thermal and fixed magnetic trips, as well as adjustable thermal and magnetic trips. Standard features include on/off color indication and a trip button.
Lists approvals and applicable breaking capacities according to marine standards, with specific breaker types and their rated currents and voltages.
TemMeasure power monitoring equipment measures and displays current, voltage, and power factors, aiding in energy saving. TemPlug offers a direct bus plug-in mounting base, simplifying switchboard downsizing and standardization.
Specifies that the order of load-side phases should be standardized to R, S, and T from the top, regardless of the breaker's mounting orientation.
TemPlug allows for the separation of bus and breaker sections, enhancing switchboard safety for circuit breakers ranging from 100A to 630A frames.
Includes high-INST trip breakers, low-temperature circuit breakers, anti-fungus circuit breakers, and highly anti-corrosive circuit breakers, each designed for specific environmental conditions and applications.
Standard operating conditions include temperature, humidity, altitude, and atmospheric requirements. Special environment breakers are recommended for non-standard conditions.
Contact details for Terasaki's offices in various countries, including the UK, Italy, Spain, Sweden, Singapore, Malaysia, Brazil, China, and Japan.
Catalog excerpts
www.terasaki.co.jp Low-Voltage Circuit Breakers Selection Guide CATALOGUE No. ’05-G90E
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1 Terasaki developed its original breaker for the first time in Japan in 1947. Since then, the company has been offering, as a specialized breaker manufacturer, the most advanced breakers not only to the Japanese market, but also to the world markets. The TemBreak series of Moulded case circuit breakers, which is evaluated as highly reliable by our customers, has been improved from time to time for better performance through Terasaki's advanced technologies. In 2000, the TemPower 2 series was released to replace the Tempower series of air circuit breakers, which had received high reputations...
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2 TERASAKII Prroff ii lle Sales department for marine Technical department for marine Sales department for industrial Technical department for Industrial Yao factory Imari factory Yabakei factory Sales department Technical department Kami factory Quality assurance department Business administration division Accounting & finance department General affairs department President Board of directors Section of inspector Board of auditors Industrial systems Marine systems Circuit breakers Quality assurance department Short-circuit testing station Division administration department Division administration...
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3 TERASAKI ELECTRIC CO., LTD. Osaka, JAPAN Headquarter Overseas Affiliates q o w r t e y u i TERASAKI (EUROPE) LTD. Glasgow, SCOTLAND U. K. TERASAKI ITALIA s.r.l. Milano, ITALY TERASAKI ESPAÑA, S.A.U. Barcelona, SPAIN TERASAKI SKANDINAVISKA AB SKOGÅS SWEDEN TERASAKI CIRCUIT BREAKERS (S) PTE. LTD. SINGAPORE TERASAKI ELECTRIC (M) SDN. BHD. Shah Alam, MALAYSIA TERASAKI DO BRASIL LTDA. Rio de Janeiro, BRAZIL TERASAKI ELECTRIC (CHINA) LIMITED Zengcheng, CHINA TERASAKI ELECTRIC CO., (FAR EAST) PTE. LTD. SINGAPORE q w e r t y u i o TERASAKI Global Network œ1 TERASAKI SKANDINAVISKA AB (SWEDEN) œ2 TERASAKI...
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• Short-circuit Testing Station q Short-circuit test generator No.1 w Short-circuit test generator No.2 e Voltage change device r Back-up breaker t Making switch y Reactors, Resistance u Step-down 3ø transformer i 800V d.c. short-circuit testing equipment o Pit !0 Impulse generator !1 Control room !2 Computerized control equipment q w e r t y u i o !0 !2 !1 4 Certifications, Authorizations or Approvals by World's Leading Organizations Air Circuit Breakers ASTA/U.K. ASTA CERTIFICATION SERVICES SECV/Australia State Electricity Commission of Victoria LR/U.K. Lloyd’s Register of Shipping BV/France...
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TemBreak Moulded Case Circuit Breakers (AME series for Generator Protection) Power Monitoring Equipment Direct bus plug-in mounting base Air Circuit Breakers Earth-leakage Relays Air Circuit Breakers with enhanced OCR 5 Appearrance off majjorr prroductt ss
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8 Air Circuit Breakers AT•AH Series 1 Frame Size (A) Type ° RATED CURRENT [In] (A) IEC, BS, VDE, AS (Max.) q JIS JEC !0 NEMA, ANSI Marine Neutral Pole Amperes Frame (A) w Number of Poles e ° RATED PRIMARY CURRENT OF OVER-CURRENT TRIP DEVICES [ICT] (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 500V Up to 415V with...
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9 Air Circuit Breakers AME Series for Generator protection 1 NOTES: ¡ : Available. — : Not available. q : With long time-delay trip and short time-delay trip. w : Cannot use UVT and SHT jointly. e : Equipped as standard. r : Used for testing instantaneous trip function (separate mounting). NK standard requires at least one checker per vessel. t : Used for testing tripping characteristics with secondary current. Frame Size [A] Type Number of poles Rated current of overcurrent trip device [A] (ln is generator rated current) Rated insulation voltage (U i) [VAC] Rated frequency [Hz] ° AC RATED BREAKING...
Open the catalog to page 10
10 TemBreak z Moulded Case Circuit Breakers Economical XE Series 2 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 b c d Weight (kg) ' marked standard...
Open the catalog to page 11
11 TemBreak z Moulded Case Circuit Breakers Economical XE Series 2 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 b c d Weight (kg) ' marked standard...
Open the catalog to page 12
12 TemBreak z Moulded Case Circuit Breakers Standard XS Series 2 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 b c d Weight (kg) ' marked standard...
Open the catalog to page 13
13 TemBreak z Moulded Case Circuit Breakers Standard XS Series 2 600 XS600NE 3 4 800 XS800NS 3 4 800 XS800CS 3 4 600 XS600NS 3 4 600 XS600CS 3 4 400 XS400NS 3 4 400 XS400NE 3 4 700 800 8 690 35 50 85 20/10 @5 35/18 @5 50/25 50/25 65/33 85/43 30 50 85 — 40 40 — A 210 280 273 103 145 9.4 12.2 — ' õ — õ õ — õ !3 — — — — ¡ ¡ ¡ ¡ (AX) ¡ (AL) ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ — ¡ 700 800 8 690 25 35 50 16/8 @5 25/13 @5 30/15 35/18 45/23 50/25 25 35 50 — 40 40 — A 210 280 273 103 145 9.4 12.2 — ' õ — õ õ — õ !3 — — — — ¡ ¡ ¡ ¡ (AX) ¡ (AL) ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ ¡ — ¡ Adjustable 300 500 350 600 400...
Open the catalog to page 14All Terasaki Electric Ltd catalogs and technical brochures
TemBreak268 Pages
Group starter panel model : GS2212 Pages
HS2120 Pages
TZS Series Earth Leakage Relays195 Pages
Archived catalogs
TemDin Miniature Circuit Breaker107 Pages
Breaking Contacts Brochure8 Pages
Terasaki - Air Circuit Breaker70 Pages
- Monitoring relay
- Current circuit breaker
- Bourn And Koch single-pole circuit breaker
- DIN rail monitoring relay
- Monitoring control system
- Thermal-magnetic circuit breaker
- AC circuit breaker
- DIN rail circuit breaker
- Molded case circuit breaker
- Compact circuit breaker
- Multipole circuit breaker
- Tripolar circuit breaker
- Bipolar circuit breaker
- Current monitoring relay
- Low-voltage circuit breaker
- Motor control system
- Air-operated circuit breaker
- Earth-leakage monitoring relay