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Siemens BF250 GFCI Molded Case Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Siemens
BF250
GFCI Molded Case Circuit Breaker
Brand
Siemens
SKU
BF250
Quantity
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Siemens BF250 - 50A GFCI Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens BF250 - 50A GFCI Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BF250 |
| Series | BF |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| 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 |
Sold out
Quantity
Siemens BF250 - 50A GFCI Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BF250-R |
| Series | BF |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| 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 |
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Description
Built for commercial and industrial applications, the BF250 provides 50A of ground fault protection on 120/240V circuits. It delivers essential personnel safety for wet or damp locations by detecting leakage currents as low as 5mA. Engineered for bolt-on mounting, this thermal-magnetic breaker fits seamlessly into Siemens P1, P2, and P3 panelboards. It serves as the direct predecessor to the newer BF250A model. Featuring a 10kAIC interrupting capacity, this unit includes HACR certification.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BF250 |
| Series | BF |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| 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 |
Product FAQs
6 answersCan I install the BF250 in a standard Siemens residential load center?
No, the BF250 is a bolt-on circuit breaker designed specifically for Siemens P1, P2, and P3 commercial panelboards. It will not fit in standard residential plug-on load centers.
What level of ground fault protection does the BF250 provide?
The BF250 provides Class A ground fault protection. It is calibrated to trip when it detects a ground fault leakage current of 5mA, providing essential personnel safety in wet or damp locations.
How is the neutral connection handled on the BF250?
This breaker features a pigtail neutral connection. During installation, the pigtail wire must be routed and connected directly to the panelboard neutral bar to ensure the ground fault detection circuitry functions correctly.
What is the difference between the Siemens BF250 and the BE250?
While both are 50A bolt-on breakers for P1, P2, and P3 panelboards, the BF250 provides 5mA Class A personnel protection. The BE250 provides 30mA equipment ground fault protection (GFEP) to prevent nuisance tripping on equipment like heat trace cables.
Is there a newer replacement model for the BF250?
Yes, the BF250 is a legacy model that has been replaced by the Siemens BF250A and the B250GF. The newer models feature updated automated self-test capabilities while maintaining the same physical footprint and panelboard compatibility.
How does the thermal magnetic trip mechanism operate on this breaker?
The BF250 utilizes a fixed thermal element for long-time overload protection and a fixed magnetic element for instantaneous short-circuit protection. These operate independently of the 5mA ground fault detection circuitry.
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