Siemens QR22B150 Molded Case Circuit Breaker
- 150A
- 2 Pole
- Bolt-On
Siemens
QR22B150
Molded Case Circuit Breaker
Brand
Siemens
SKU
QR22B150
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Siemens QR22B150 - 150A 2 Pole Molded Case Circuit Breaker
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150A 2 Pole Molded Case Circuit Breaker
150A 2 Pole Molded Case Circuit Breaker
150A 2 Pole Molded Case Circuit Breaker
Description
The Siemens QR22B150 is a 2-pole, 150A molded case circuit breaker suitable for residential, commercial, and industrial environments. It utilizes thermal-magnetic technology to safeguard circuits against overloads and short circuits. This breaker mounts into Siemens P1, P2, and P3 panelboards, meter centers, switchboards, and select load centers. It replaces the obsolete QJ22B150. With an interrupting capacity of 10kAIC at 240VAC, the HACR-rated design accommodates reverse feed wiring.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QR22B150 |
| Series | QR |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | QR |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Meter Centers, Switchboards, Load 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 | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Push-to-Trip Button |
Product FAQs
6 answersCan the QR22B150 be used to replace older QJ series breakers?
Yes, Siemens designed the QR frame with the exact same form factor and mounting dimensions as the legacy QJ breakers. The QR22B150 serves as a direct drop-in replacement for older 150A, 2-pole QJ models.
Which Siemens panelboards are compatible with this breaker?
The QR22B150 is engineered for installation in Siemens P1, P2, and P3 panelboards. It is also compatible with select Siemens switchboards, meter centers, and load centers configured for QR frame bolt-on breakers.
What wire sizes do the standard lugs on this breaker accept?
The factory-installed load side lugs accommodate either aluminum or copper conductors ranging from 3 AWG up to 300 kcmil.
How is the QR22B150 secured inside the panel?
This is a bolt-on circuit breaker. The line side bolts directly to the panel busbars for a secure, vibration-resistant connection, while the load side uses standard mechanical lugs for wire termination.
What type of trip unit is installed in the QR22B150?
It utilizes a non-interchangeable thermal magnetic trip unit. This provides Long-Time thermal protection for overloads and Instantaneous magnetic protection for short circuits.
What is the standard operating temperature for this breaker?
Siemens calibrates standard QR frame breakers for a 40 degrees Celsius (104 degrees Fahrenheit) ambient temperature. If installed in environments exceeding this temperature, the breaker must be derated according to manufacturer specifications.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
1 review
- BGBob G.Verified BuyerReviewingSiemens QR23B125 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/7/26Perfect replacement
I had a load center with a broken main breaker handle. Ordered this one received it in two days and had it replaced in about 1/2 hour.