ABB A2A250TW-2 Circuit Breaker
- 250A
- 2 Pole
- Unit Mount
Quantity
ABB A2A250TW-2 2 Pole Circuit Breaker
New
Quantity
Description
ABB A2A250TW-2 2 Pole Circuit Breaker
The ABB A2A250TW-2 is a 2 Pole thermal magnetic molded case circuit breaker with a current rating of 250 Amps and a voltage rating of 240VAC. It has an interrupting rating of 10kAIC. The A2A250TW-2 has a chassis, rear mounting type.
Specifications
| Brand | ABB |
|---|---|
| Series | A2A |
| Amperage | 250A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 10kA @ 250VDC |
| Frame Type | A2 |
|---|
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Approval | IEC, UL |
|---|
Product FAQs
7 answersWhat is the alternate catalog description for the ABB A2A250TW-2?
This 250A breaker is frequently identified by the ABB catalog description A2A 250 TMF 250-2500 2P F F UL.
What are the specific thermal and magnetic trip thresholds for this breaker?
The A2A250TW-2 features a fixed thermal-magnetic (TMF) trip unit. The thermal overload protection is factory-calibrated at 250A, and the instantaneous magnetic short-circuit trip is fixed at 2500A.
Can the trip unit on the A2A250TW-2 be adjusted in the field?
No, this breaker uses a fixed TMF trip unit. The thermal and magnetic protection thresholds are factory-set and cannot be modified after installation.
Which ABB breaker family does the A2A250TW-2 belong to?
It is part of the ABB SACE FORMULA series, utilizing the compact A2 frame designed for commercial and industrial low-voltage distribution panels.
Is the A2A250TW-2 rated for DC circuit applications?
Yes, in addition to its 240VAC rating, this 2-pole breaker is rated for up to 250VDC, providing versatile protection for both AC and DC systems.
Does the mounting orientation impact the breaker's performance?
No, ABB FORMULA series breakers can be mounted vertically, horizontally, or lying down without any derating of their electrical characteristics.
What safety and testing standards does this ABB breaker meet?
The A2A250TW-2 is UL Listed under UL 489 and complies with IEC 60947-2 standards for low-voltage circuit protection.
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