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Siemens BF125A GFCI Molded Case Circuit Breaker
- 25A
- 1 Pole
- Bolt-On
Siemens
BF125A
GFCI Molded Case Circuit Breaker
Brand
Siemens
SKU
BF125A
Quantity
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Siemens BF125A - 25A GFCI Molded Case Circuit Breaker
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Description
Mounts into Siemens P1, P2, and P3 panelboards to deliver reliable 25A circuit protection. The Siemens BF125A is a 1-pole, bolt-on GFCI breaker that serves as a direct substitute for the discontinued BF125 model. Rated at 10kAIC for 120VAC systems, it provides Class A 5mA ground fault sensitivity to protect personnel in wet or damp locations. This HACR and HID-rated unit includes a modern self-test feature, ensuring the ground fault sensor remains fully operational and code-compliant.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BF125A |
| Series | BF |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Special Classification | GFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489, UL 943, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Non-Interchangeable Trip |
Product FAQs
7 answersWhich panelboards are compatible with the Siemens BF125A circuit breaker?
The BF125A is a bolt-on breaker designed for use in Siemens P1, P2, and P3 panelboards. It is not compatible with standard plug-on residential load centers.
What is the direct replacement for the discontinued Siemens BF125 breaker?
The Siemens BF125A serves as the direct replacement for the obsolete BF125 ground fault circuit breaker, offering updated Class A 5mA protection.
What level of ground fault protection does the BF125A provide?
This breaker provides Class A ground fault protection with a 5mA trip sensitivity. It is designed to protect personnel from electrical shock in wet or damp locations.
How is the neutral connection handled on the BF125A GFCI breaker?
The BF125A features a pigtail neutral wire that must be connected directly to the neutral bus bar of the panel to ensure the ground fault sensing circuitry operates correctly.
Does the BF125A require a specific mounting hardware kit?
As a bolt-on breaker, it secures directly to the bus bars of Siemens P1, P2, or P3 panelboards using the integrated mounting screws. No separate mounting hardware kit is required for standard installation.
Does the BF125A include a self-test feature?
Yes, modern versions of the BF125A include a self-test feature that periodically ensures the ground fault sensor remains fully operational and compliant with current electrical codes.
Is the BF125A rated for HACR and HID applications?
Yes, this breaker is HACR and HID rated, making it suitable for heating, air conditioning, refrigeration, and high-intensity discharge lighting circuits that require 25A ground fault protection.
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