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Siemens QR23B175 Molded Case Circuit Breaker
- 175A
- 3 Pole
- Bolt-On
Siemens
QR23B175
Molded Case Circuit Breaker
Brand
Siemens
SKU
QR23B175
Quantity
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Siemens QR23B175 - 175A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens QR23B175 - 175A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Series | QR |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| 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 |
Quantity
Siemens QR23B175 - 175A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | QR |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| 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 |
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Description
Designed for versatile power distribution, the Siemens QR23B175 is a 3-pole, 175A molded case circuit breaker. It ensures reliable thermal-magnetic protection across residential, commercial, and industrial environments. This bolt-on MCCB installs into Siemens P1, P2, and P3 panelboards, as well as compatible load centers. It provides a replacement solution for the legacy QJ23B175. Operating at 240VAC with a 10kAIC rating, it includes fixed LI trip functions and a push-to-trip button.Specifications
| Brand | Siemens |
|---|---|
| Series | QR |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| 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
9 answersWhich Siemens enclosures are compatible with the QR23B175 circuit breaker?
The QR23B175 is a bolt-on MCCB designed for installation in Siemens P1, P2, and P3 panelboards, as well as compatible switchboards, meter centers, and load centers.
Can the QR23B175 replace older QJ frame breakers?
Yes, the QR frame serves as a direct replacement solution for legacy QJ frame breakers, such as the obsolete QJ23B175. Note that specific mounting hardware or retrofit field kits may be required depending on your existing panel configuration.
What are the higher interrupting rating options for this 175A QR breaker?
While the standard QR23B175 is rated for 10kAIC at 240VAC, Siemens offers the QRH23B175 for a 25kAIC rating and the HQR23B175 for a 65kAIC rating.
What wire sizes and materials are accepted by the load lugs on this breaker?
The factory-installed load side lugs accept 3 AWG through 300 kcmil wire. These terminals are dual-rated for both aluminum and copper conductors. Always refer to the breaker faceplate for specific torque requirements prior to termination.
Is the QR23B175 breaker HACR rated?
Yes, this Siemens thermal-magnetic breaker is HACR rated, making it suitable for overcurrent protection in heating, air conditioning, and refrigeration equipment applications.
Does this breaker include a mechanical testing feature?
Yes, the QR23B175 features a push-to-trip button on the face of the breaker. This allows maintenance personnel to easily verify that the mechanical tripping mechanism is functioning properly.
Can the thermal or magnetic trip settings be adjusted in the field?
No, this model features fixed thermal and fixed magnetic trip elements. It does not offer field-adjustable trip dials.
What is the standard operating temperature rating for this QR frame breaker?
The QR23B175 is calibrated for operation in a standard 40 degrees Celsius (104 degrees Fahrenheit) ambient environment. Installations in higher ambient temperatures will typically require derating.
Can internal accessories be added to the QR23B175?
Yes, Siemens QR frame breakers support field-installable internal accessories. Available options include shunt trips, auxiliary switches, and alarm switches.
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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.