Siemens BQCH3B015 Molded Case Circuit Breaker
- 15A
- 3 Pole
- Bolt-On
Quantity
Siemens BQCH3B015 - 15A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed for three-phase commercial systems, the Siemens BQCH3B015 ensures precise 15-amp overcurrent protection. Its trip-free mechanism guarantees the breaker will open under fault conditions even if the handle is held in the ON position. This unit mounts firmly into Siemens P1, P2, and P3 panelboards via a standard bolt-on connection. When sourcing replacements for aging infrastructure, the BQD315 is the designated modern equivalent for this specific frame.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQCH3B015-R |
| Series | BQCH |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| 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 (Cu), 6 AWG (Al) |
| 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersWhat panelboards are compatible with the Siemens BQCH3B015?
This bolt-on circuit breaker is designed specifically for use in Siemens P1, P2, and P3 panelboards. It is not compatible with standard residential load centers that require plug-on breakers.
What does the H in the BQCH series designation indicate?
The H indicates a high interrupting rating. The BQCH3B015 provides a 65kA interrupting capacity at 240V and 14kA at 480V, which is significantly higher than standard BQ series breakers.
What is the modern replacement for the legacy BQCH3B015 circuit breaker?
When sourcing replacements for aging infrastructure, the Siemens BQD315 is the designated modern equivalent and serves as a drop-in substitute for this specific 15A, 3-pole frame.
Is the Siemens BQCH3B015 suitable for HVAC applications?
Yes, this breaker is HACR rated, making it approved for use with heating, air conditioning, and refrigeration equipment.
Can I use this breaker in a panel that requires plug-on connections?
No, the BQCH3B015 features a bolt-on mounting style. It cannot be used interchangeably with plug-on breakers, such as the Siemens QP series, and must be bolted directly to the panelboard busbar.
Does the BQCH3B015 feature a trip-free mechanism?
Yes, it includes a trip-free mechanism that ensures the breaker will open and interrupt the circuit under fault conditions, even if the handle is physically held in the ON position.
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