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Square D BDA261251 Molded Case Circuit Breaker
- 125A
- 2 Pole
- I-Line
Square D
BDA261251
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA261251
Quantity
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Square D BDA261251 - 125A 2 Pole Molded Case Circuit Breaker
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Description
Built for robust power distribution, the Square D BDA261251 is a 125A, 2-pole molded case circuit breaker. The catalog prefix indicates a PowerPacT B-Frame construction with a D-class interrupt rating (18 kAIC at 480V) and I-Line mounting. It utilizes thermal-magnetic trip units to provide reliable long-time and instantaneous (LI) protection. This breaker mounts into Square D I-Line panelboards and switchboards, featuring a factory-configured AB phase connection and Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Series | BDA |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 10kA @ 250VDC |
| Frame Type | BDA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14 AWG - 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 | Factory-configured for AB-Phase connection |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
7 answersDoes the BDA261251 replace older Square D I-Line breakers?
Yes, the PowerPacT B-frame series replaces legacy F-frame circuit breakers, including the FA and FH series. It fits into the same I-Line panelboard mounting space for straightforward retrofits.
What does the 1 at the end of the BDA261251 catalog number indicate?
The 1 indicates this 2-pole I-Line breaker is factory configured for an AB phase connection on the panelboard bus.
What does the D in the BDA261251 part number signify?
The D designates the interrupting rating tier for this PowerPacT B-frame breaker. It provides 18 kAIC at 480V and 14 kAIC at 600Y/347V.
How does this breaker connect to the panelboard?
The BDA261251 features an I-Line style plug-in connection on the line side that mounts directly onto the panelboard bus, and mechanical lugs on the load side for wire termination.
Is the BDA261251 rated for 100 percent continuous current?
No, standard PowerPacT B-frame thermal magnetic circuit breakers are rated for 80 percent continuous current per NEC guidelines.
Which panelboards are compatible with the BDA261251?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It is not compatible with standard QO, Homeline, NQ, or NF panels.
What type of protection does the LI trip function provide?
The LI designation means the thermal magnetic trip unit provides Long-Time overload and Instantaneous short circuit protection. Both the thermal and magnetic trip thresholds are fixed on this model.
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