Siemens QR22B250 Molded Case Circuit Breaker
- 250A
- 2 Pole
- Bolt-On
Quantity
Siemens QR22B250 - 250A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for commercial and industrial applications, the Siemens QR22B250 is a 2-pole, 250A molded case circuit breaker from the SENTRON family. It delivers dependable long-time and instantaneous (LI) trip functions to protect electrical distribution systems. This unit mounts into Siemens P1, P2, and P3 panelboards, as well as compatible switchboards and meter centers. Rated at 10kAIC at 240VAC, it serves as an exact drop-in replacement for discontinued QJ frame breakers.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QR22B250 |
| Series | QR |
| Amperage | 250A |
| 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
7 answersWhat panelboards are compatible with the Siemens QR22B250 circuit breaker?
This breaker installs into Siemens P1, P2, and P3 panelboards, as well as compatible meter centers, switchboards, and load centers. Depending on the panel type, it can be utilized in main, branch, or subfeed applications.
What older breaker frames does the QR series replace?
The Siemens QR frame is the direct drop-in replacement for discontinued QJ frame breakers. The 250A QR models were also introduced to provide a more compact alternative to older 250A FD frames in specific applications.
Can the QR22B250 be used for reverse feed applications?
Yes, Siemens QR frame circuit breakers support reverse feed applications, allowing for flexible installation in various distribution setups.
What wire sizes are accepted by the lugs on this breaker?
The factory-installed lugs on the QR22B250 accept 3 AWG to 300 kcmil aluminum or copper wire. Always verify proper torque requirements during installation to ensure a secure connection.
Can I field-install internal accessories on the QR22B250?
Yes, unlike the older QJ frames, the Siemens QR series allows for field-installable internal accessories such as auxiliary switches. You can install these by removing the faceplate screws and plugging the accessory directly into the breaker.
Does this breaker include a push-to-trip feature?
Yes, the QR frame includes a push-to-trip button on the face of the breaker for easy mechanical testing of the tripping mechanism.
Is the Siemens QR22B250 HACR rated?
Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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.