Siemens HQR22B150L Molded Case Circuit Breaker
- 150A
- 2 Pole
- Unit Mount
Quantity
Siemens HQR22B150L - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed to replace discontinued QJ and QJH frame breakers, the Siemens HQR22B150L offers an exact form-factor match for seamless retrofits. This 150-amp, two-pole unit mount MCCB provides a 65kAIC rating at 240VAC and features fixed thermal-magnetic trip functions (LI). Supplied with factory-installed line and load lugs, it is optimized for feed-thru configurations. Mounts into Siemens enclosures, switchboards, and meter centers for reliable commercial power distribution.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HQR22B150L |
| Series | HQR |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC |
| Frame Type | HQR2 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Switchboards, Meter Centers |
| Wire Gauge | 3 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 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, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
6 answersWhat legacy Siemens breakers does the HQR22B150L replace?
The HQR22B150L is designed as a direct bolt-on replacement for discontinued QJ and QJH frame circuit breakers. It offers an exact form-factor match for seamless retrofits in existing panels.
Which Siemens panelboards are compatible with this breaker?
This HQR2 frame breaker mounts directly into Siemens P1, P2, and P3 panelboards, as well as compatible Siemens switchboards and meter centers.
Does this breaker support reverse feed installations?
Yes, the HQR22B150L supports reverse feed installations, providing maximum flexibility when wiring your panelboard or switchboard.
Are line and load lugs included with this unit?
Yes, this feed-thru circuit breaker comes supplied with factory-installed line and load lugs that accept 3 AWG to 300 kcmil aluminum or copper wire.
Is the HQR22B150L HACR rated for HVAC applications?
Yes, this breaker is HACR rated, making it suitable for use with commercial heating, air conditioning, and refrigeration equipment.
Can the trip settings on this breaker be adjusted in the field?
No, this breaker features a non-interchangeable thermal-magnetic trip unit with fixed long-time and instantaneous (LI) trip functions. The settings cannot be adjusted.
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