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Square D Q2B22150ABH Molded Case Circuit Breaker
- 150A
- 2 Pole
- Bolt-On
Square D
Q2B22150ABH
Molded Case Circuit Breaker
Brand
Square D
SKU
Q2B22150ABH
Quantity
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Square D Q2B22150ABH - 150A 2 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty industrial use, the 150-amp Q2B22150ABH provides robust overcurrent protection. This two-pole molded case circuit breaker is part of the trusted Q-Frame family, offering proven performance for 240V systems. Designed for secure bolt-on installation, it mounts into Square D switchboards and panelboards. When modernizing equipment, this model crosses over to the newer QDL22150 replacement. It features a 22kAIC interrupt rating and a factory-installed auxiliary switch.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2B22150ABH-R |
| Series | Q2B |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Panelboards, Switchboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Auxiliary Switch (Suffix ABH indicates factory-installed auxiliary contacts, typically 2A/2B) |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Visual Trip Indicator, HACR Rated, Non-Interchangeable Trip |
Product FAQs
4 answersWhat is the modern replacement for the legacy Q2B22150ABH circuit breaker?
When upgrading or modernizing equipment, this legacy Q-Frame breaker crosses over to the newer QDL22150 replacement.
What does the ABH suffix indicate on the Q2B22150ABH?
The ABH suffix signifies that the breaker includes a factory-installed auxiliary switch, typically featuring 2A/2B contacts for remote signaling and status monitoring.
Which enclosures and panels accept the Q2B22150ABH?
This breaker is designed to mount into Square D switchboards and panelboards that accommodate legacy Q-Frame molded case circuit breakers.
Are the trip settings adjustable on the Q2B22150ABH?
No, this thermal magnetic breaker features fixed long-time and fixed instantaneous trip functions, meaning the trip curve cannot be adjusted in the field.
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