Siemens B125H Miniature Circuit Breaker
- 25A
- 1 Pole
- Bolt-On
Quantity
Siemens B125H - 25A 1 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Siemens B125H - 25A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | B125H |
| Series | B |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| 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, Alarm Switch, Padlock Attachment, Handle Tie |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Quantity
Siemens B125H - 25A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | B125H-R |
| Series | B |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| 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, Alarm Switch, Padlock Attachment, Handle Tie |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Description
Manufactured for reliable power management, this 25A miniature breaker utilizes thermal-magnetic trip technology to prevent overloads. It fastens securely into Siemens P1, P2, and P3 panelboards to serve commercial and industrial applications. Boasting a 22kAIC rating at 120/240V and HACR certification, this component is ideal for air conditioning and heating circuits.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B125H |
| Series | B |
| Amperage | 25A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| 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, Alarm Switch, Padlock Attachment, Handle Tie |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
5 answersWhich panelboards accept the Siemens B125H circuit breaker?
This bolt-on breaker is designed exclusively for Siemens P1, P2, and P3 commercial panelboards. Because it requires a bolted connection to the busbar, it cannot be installed in standard residential plug-on load centers.
What is the difference between the Siemens B125 and the B125H?
The "H" suffix indicates a high-interrupting capacity. While the standard B125 has a 10kAIC rating, the B125H is rated for 22kAIC at 120/240VAC, making it suitable for commercial applications requiring higher fault current protection.
Is the Siemens B125H suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment that requires this specific protection standard.
Can the Siemens B125H replace older ITE or Gould breakers?
Yes, Siemens acquired the ITE and Gould electrical distribution lines. The Siemens B125H is a direct, UL listed replacement for older ITE or Gould B125H and BLH type 25A single-pole breakers.
Can the trip settings on the B125H be adjusted in the field?
No, this miniature circuit breaker features fixed thermal and fixed magnetic trip settings. It does not support field adjustments for the trip curve.
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