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ABB A2A125TW-2 Molded Case Circuit Breaker
- 125A
- 2 Pole
- Unit Mount
ABB
A2A125TW-2
Molded Case Circuit Breaker
Brand
ABB
SKU
A2A125TW-2
Quantity
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ABB A2A125TW-2 - 125A 2 Pole Molded Case Circuit Breaker
New
Quantity
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Description
Delivering robust power distribution, this 2-pole, 125A molded case circuit breaker belongs to the ABB Formula A2 series. It is designed for commercial environments requiring dependable long-time and instantaneous protection. The unit mount design installs into ABB Formula and ReliaGear panelboards, DIN rails, and OEM enclosures. It functions as a modern replacement for legacy TQD22125 breakers.Specifications
| Brand | ABB |
|---|---|
| Series | Formula |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 10kA @ 250VDC |
| Frame Type | A2 |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB Formula Panelboards, ReliaGear Panelboards, OEM Enclosures, DIN Rail |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Padlock Attachment, Terminal Shields, Lug Kits |
|---|---|
| Accessories | Front Terminals Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL, cULus |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
7 answersCan the ABB A2A125TW-2 replace older GE circuit breakers?
Yes, this Formula A2 series breaker serves as a functional replacement for legacy GE TQD22125 circuit breakers. While it provides equivalent 125A, 2-pole protection, physical mounting dimensions differ, so an adapter or enclosure modification may be required.
How is the A2A125TW-2 circuit breaker mounted?
This breaker features a unit mount design for installation in ABB Formula and ReliaGear panelboards, as well as OEM enclosures. It can also be mounted on a standard DIN rail using a compatible ABB DIN rail adapter.
Are the trip settings on the A2A125TW-2 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time thermal overload and instantaneous magnetic short-circuit trip functions are factory set and cannot be adjusted in the field.
Is the ABB A2A125TW-2 suitable for reverse feeding?
Yes, ABB Formula A2 molded case circuit breakers are designed to support reverse feeding. This allows power to be supplied from either the line or load side terminals without compromising the protection characteristics.
Can the A2A125TW-2 be mounted in any orientation?
Yes, ABB Formula circuit breakers can be mounted in horizontal, vertical, or lying down positions without any derating of their nominal performance characteristics.
Does the A2A125TW-2 require derating at high altitudes?
This breaker requires no nominal performance derating for installations up to an altitude of 6,562 feet. Above this elevation, adjustments for air composition and dielectric strength must be factored into the system design.
What is the maximum ambient temperature for the A2A125TW-2 before derating is required?
The Formula A2 frame circuit breakers are suitable for use in ambient temperatures up to 50 degrees Celsius (122 degrees Fahrenheit) without requiring any derating of their nominal current capacity.
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