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Siemens HQJ23B150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
Siemens
HQJ23B150
Molded Case Circuit Breaker
Brand
Siemens
SKU
HQJ23B150
Quantity
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Siemens HQJ23B150 - 150A 3 Pole Molded Case Circuit Breaker
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Description
Designed for heavy-duty power distribution, the Siemens HQJ23B150 is a 3-pole, 150A molded case circuit breaker. It provides dependable thermal-magnetic overcurrent protection for commercial and industrial applications. This QJ-frame device bolts into Siemens P1, P2, and P3 panelboards, meter centers, and motor control centers. For newer installations, it has been replaced by the HQR23B150.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQJ23B150 |
| Series | HQJ |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC |
| Frame Type | HQJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards, Meter Centers, Motor Control Centers |
| Wire Gauge | 6 AWG - 300 kcmil (Cu), 4 AWG - 300 kcmil (Al) |
| Max Wire | 300 kcmil |
| Min Wire | 6 AWG (Cu), 4 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 |
|---|---|
| Accessories | Line & Load Lugs |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Extra High Interrupting Capacity, Non-Interchangeable Trip, Trip-Free Mechanism, Common Trip |
Product FAQs
7 answersIs the Siemens HQJ23B150 still the current model for this frame size?
For newer installations, the HQJ23B150 has been replaced by the HQR23B150. However, the HQJ23B150 remains a direct fit for existing QJ-frame applications.
What types of enclosures and panels accept the HQJ23B150 circuit breaker?
This breaker is designed to bolt into Siemens P1, P2, and P3 panelboards, as well as compatible switchboards, meter centers, and motor control centers.
What is the difference between the QJ23B150 and the HQJ23B150?
The prefix indicates the interrupting capacity. The standard QJ23B150 has a 10kAIC rating at 240V, while the HQJ23B150 features an extra-high interrupting capacity of 65kAIC at 240V.
What wire sizes are accepted by the lugs on the HQJ23B150?
The included lugs accept 6 AWG to 300 kcmil copper wire, or 4 AWG to 300 kcmil aluminum wire.
Is the HQJ23B150 rated for reverse feed applications?
Yes, Siemens QJ-frame circuit breakers, including the HQJ23B150, are UL Listed for reverse feed applications.
Can this breaker be used for heating, air conditioning, and refrigeration equipment?
Yes, the HQJ23B150 is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration circuits.
Are the thermal and magnetic trip settings adjustable on this breaker?
No, the HQJ23B150 features a non-interchangeable trip unit with fixed thermal and fixed magnetic trip settings.
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