ABB plastic case circuit breaker selection guide and nameplate parameter analysis

Overview of ABB Molded Case Circuit Breakers

So far, ABB has three series of molded case circuit breakers, including Formula, Tmax T and Tmax XT. In order to make it more convenient for everyone to select the circuit breaker, we will mainly introduce the related models, characteristics, nameplate parameters and other information of each series of ABB molded case circuit breakers.

ABB molded case circuit breaker (Formula series)

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This series is mainly composed of three frames A1, A2 and A3, and its current is 125A, 250A and 630A respectively. And the three frames are all fixed, and the standard configuration is the front terminal block. ABB Molded Case Circuit Breaker Formula series features: simple configuration, easy to choose, rich accessories and complete specifications. It integrates all the features of simplicity, reliability and quality, double insulation isolation function, and the power supply can adopt the way of upper or lower inlet. It can be said to belong to a more practical type of molded case circuit breaker.

Formula Series Molded Case Circuit Breaker Selection Guide

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Model example: A2-N-250-TMF-250/2500-F-F-3P

Model description: Molded case circuit breaker A2, rated ultimate short-circuit breaking capacity is N, rated uninterrupted current is 250A, thermal magnetic tripping is not adjustable, rated current is 250A, maximum magnetic tripping value is 2500, three poles and installation method is Fixed type, using front wiring terminals.

Formula series molded case circuit breaker nameplate parameters

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1. Name and model of circuit breaker; 2. In rated current (in accordance with IEC60947-2 standard);



3. Uimp rated impulse withstand voltage; 4. Ui rated insulation voltage;

5. Ics rated short-circuit breaking capacity during operation; 6. Icu rated ultimate short-circuit breaking capacity;

7. Ue rated working voltage; 8. Isolation function symbol;

9. Comply with IEC60947-2 and GB/T14048.2 standards; 10. Serial number;

11. Anti-counterfeiting label; 12. Test button; 13. Use category; 14. CE mark.

ABB molded case circuit breaker (Tmax T series)

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The conventional Tmax T has seven models, which are from T1 to T7. The rated working current is from 1A to 1600A, all series have fixed type, and T2, T3, T4 and T5 also have plug-in type, and T4, T5, T6 and T7 have draw-out type. ABB molded case circuit breaker Tmax T series features: the trip unit can be freely replaced according to actual application requirements, and the functions of the trip unit are also intelligent. The accessory configuration is standardized and can be used, and the Icn value ranges from 16kA to 200kA.

Tmax T Series Molded Case Circuit Breaker Selection Guide

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Model example: T6N800-PR222DS/P-LSIG-R800-FF-4P

Model description: Molded case circuit breaker T6, short-circuit breaking capacity N, frame current 800A, electronic tripping PR222DS/P-LSIG, four-stage protection and rated current 800A, using fixed installation configuration front wiring terminal, the number of poles is 4 poles.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

Model example: T4H250-PR221DS-I-R250-PF-3P

Model description: Molded case circuit breaker T6, short-circuit breaking capacity H, frame current 250A, electronic trip unit PR221DS-I, single magnetic protection and rated current 250A, plug-in installation configuration front terminal block, 3 poles .

ABB molded case circuit breaker (Tmax XT series)

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The new Tmax XT is mainly divided into four models, which are as follows:

◆Compact XT1-frame current reaches 160A;

◆High-performance XT2-frame current reaches 160A;

◆Reliable XT3-frame current reaches 250A;

◆Enhanced XT4-frame current reaches 250A.

The Tmax XT frame current can reach up to 250A, which is suitable for installation and use in power distribution, electric energy metering, motor protection, generator protection, neutral line protection or any other occasions. All models (even the smallest ones) are equipped with electromagnetic or electronic protective trips, which can be interchanged. ABB molded case circuit breaker Tmax XT series features: using a new generation of electronic trip technology, compact structure and strong performance, installation, operation and maintenance are very simple, complete accessories can be selected.

Tmax XT Series Molded Case Circuit Breaker Selection Guide

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

Model example: XT4S-250-TMA-R250-F-F-3P

Model description: Molded case circuit breaker XT4, short-circuit breaking capacity S, frame current 250A, thermal magnetic trip unit TMA, rated current 250A, fixed installation with front wiring terminals, 3 poles.

Model example: XT4S-250-LS/I-R250-F-F-4P

Model description: Molded case circuit breaker XT4, short-circuit breaking capacity H, frame current 250A, electronic release LS/I, rated current 250A, fixed installation with front wiring terminals, 4 poles.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

Model example: XT2S-160-MA-R52-F-F-3P

Model description: Molded case circuit breaker XT2, short-circuit breaking capacity S, frame current 160A, single magnetic release MA, rated current 52A, fixed installation with front wiring terminals, 3 poles.

Model example: XT2S-160-M-I-R52-F-F-3P

Model description: Molded case circuit breaker XT2, short-circuit breaking capacity S, frame current 160A, single magnetic protection electronic trip unit M-I, rated current 52A, fixed installation with front wiring terminals, 3 poles.

Tmax XT series molded case circuit breaker nameplate parameters

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

1. The name and performance level of the circuit breaker; 2. The rated current of the In circuit breaker;

3. Uimp rated impulse withstand voltage; 4. Ui insulation voltage;

5. Ics rated short-circuit breaking capacity during operation; 6. Icu rated ultimate short-circuit breaking capacity;

7. Ue rated working voltage; 8. Isolation performance; 9. Reference standard IEC60947-2;

10. Serial number; 11. Anti-counterfeiting mark; 12. Test button;

13.CE marking; 14. Use category; 15. Reference standard NEMA-AB1.

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