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Siemens HQR23B150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
Siemens
HQR23B150
Molded Case Circuit Breaker
Brand
Siemens
SKU
HQR23B150
Quantity
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Siemens HQR23B150 - 150A 3 Pole Molded Case Circuit Breaker
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Description
Designed for commercial power distribution, this 150-amp QR-frame molded case circuit breaker offers reliable thermal-magnetic protection. It bolts seamlessly into Siemens P1, P2, and P3 panelboards as well as compatible switchboards. As a modern upgrade, it replaces older QJ frame models while maintaining the same footprint. The unit features a push-to-trip button for easy testing and delivers a 65kAIC interrupting rating at 240VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQR23B150 |
| Series | HQR |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards |
| Wire Gauge | 3 AWG - 300 kcmil (Cu), 6 AWG - 350 kcmil (Al) |
| Max Wire | 350 kcmil |
| Min Wire | 3 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism, Push-to-Trip Button, High Interrupting Capacity |
Product FAQs
4 answersWhat panelboards accept the HQR23B150 circuit breaker?
This breaker is designed for use in Siemens P1, P2, and P3 panelboards, as well as compatible switchboards.
Can the HQR23B150 replace older QJ frame breakers?
Yes, this QR frame breaker serves as a direct replacement for older QJ frame models, maintaining the exact same footprint in your panelboard.
Are the thermal and magnetic trip settings adjustable on the HQR23B150?
No, this breaker features fixed thermal (long time) and fixed magnetic (instantaneous) trip functions that cannot be adjusted in the field.
Does this breaker require special lugs for aluminum wire?
No, the factory-installed lugs are dual-rated for both copper and aluminum conductors, accepting 3 AWG to 300 kcmil copper or 6 AWG to 350 kcmil aluminum wire.
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