Siemens B150HH Molded Case Circuit Breaker
- 50A
- 1 Pole
- Bolt-On
Quantity
Siemens B150HH - 50A 1 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built to handle severe fault conditions, this 50-amp HBL-series component offers an exceptional 65kAIC interrupting rating for industrial power distribution. It fastens firmly into Siemens P1 through P5 panelboards, providing a stable mechanical and electrical connection. The thermal-magnetic trip mechanism includes fixed long-time and instantaneous protection, while the HACR certification allows safe operation with heating, air conditioning, and refrigeration circuits.Specifications
| Brand | Siemens |
|---|---|
| Series | HBL |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 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 | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersCan I install the B150HH in a standard residential load center?
No. The B150HH is a bolt-on breaker designed for commercial and industrial Siemens P1, P2, P3, P4, and P5 panelboards. It will not fit in standard plug-on residential load centers.
What does the HH in the B150HH catalog number indicate?
The HH designates it as part of the HBL series. This indicates a high interrupting rating of 65kAIC, which is significantly higher than standard BL or BLH frame breakers.
Can the B150HH replace a standard BL or BLH breaker?
Yes. It shares the same physical footprint and bolt-on mounting style as standard BL and BLH breakers, allowing it to serve as a direct replacement when a higher 65kAIC interrupting rating is required.
Is the Siemens B150HH suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is certified for safe operation with heating, air conditioning, and refrigeration circuits.
Can I use the Siemens B150HH to replace an older ITE B150HH breaker?
Yes. Siemens acquired ITE, and the modern Siemens B150HH is a direct replacement for the legacy ITE B150HH, maintaining the same physical dimensions and electrical characteristics.
Does this breaker require a specific mounting orientation?
The bolt-on design allows for installation in either a vertical or horizontal orientation within compatible Siemens panelboards without affecting the thermal-magnetic trip mechanism.
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