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Square D BGA261251 Molded Case Circuit Breaker
- 125A
- 2 Pole
- I-Line
Square D
BGA261251
Molded Case Circuit Breaker
Brand
Square D
SKU
BGA261251
Quantity
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Square D BGA261251 - 125A 2 Pole Molded Case Circuit Breaker
New
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Description
Built for robust power distribution, the Square D BGA261251 is a 2-pole, 125A molded case circuit breaker from the PowerPacT B-Frame series. It mounts into Square D I-Line panelboards and switchboards. This unit acts as a drop-in replacement for the discontinued FA26125AB breaker. Delivering 65 kAIC at 240V and 35 kAIC at 480V, it features a factory-set AB phase connection, fixed thermal-magnetic trip (LI), and current-limiting capabilities.Specifications
| Brand | Square D |
|---|---|
| Series | BGA |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 20kA @ 250VDC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG |
| 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, Alarm Switch, Padlock Attachment, Rotary Handle |
|---|---|
| Accessories | None (Standard Configuration) |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, EN/IEC 60947-5-1, GB 14048.2, NEMA AB 1, NMX J-266, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Common Trip, Trip-Free Mechanism |
Product FAQs
10 answersWhich panelboards are compatible with the BGA261251 breaker?
This PowerPacT B-frame breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection that mounts directly to the interior bus stack.
Is the BGA261251 compatible with standard Square D residential load centers?
No. The BGA261251 is a commercial and industrial PowerPacT B-frame breaker with an I-Line plug-in mounting style. It will not fit in standard QO or Homeline residential load centers.
What wire sizes and materials are accepted by the load-side lugs on the BGA261251?
The load-side mechanical lugs accept 14 AWG to 2/0 AWG wire and are rated for both aluminum and copper (Al/Cu) conductors.
How does the BGA261251 connect to the panelboard bus?
It uses Square D's I-Line plug-on connection for the line side. The breaker features blow-on style jaw connectors that grip the busbars tighter during a short circuit due to increased magnetic flux.
Is the BGA261251 suitable for reverse-feed applications?
Yes, this breaker is rated for reverse-feed applications. It can be back-fed and used as a main breaker in an I-Line panelboard, provided it is properly labeled and installed according to NEC guidelines.
Can I adjust the trip settings on the BGA261251 breaker?
No, this breaker features a fixed thermal and fixed magnetic trip unit. Both the long-time (overload) and instantaneous (short-circuit) trip functions are factory-set and non-adjustable.
Is the BGA261251 rated for 80 percent or 100 percent continuous current?
This breaker is standard-rated, meaning it is designed to carry 80 percent of its 125A nominal rating continuously.
What does the "1" at the end of the BGA261251 part number indicate?
The "1" suffix indicates that this 2-pole breaker is factory-configured for an AB phase connection on the I-Line bus.
Can the BGA261251 replace older discontinued Square D breakers?
Yes, the BGA261251 is a modern PowerPacT B-frame drop-in replacement for the discontinued FA26125AB I-Line circuit breaker.
Is there a way to manually test the tripping mechanism on this breaker?
Yes. Like all PowerPacT B-frame breakers, the BGA261251 includes an integral push-to-trip button on the front cover, allowing you to manually trip the breaker to verify the mechanical operation.
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