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Siemens QRH23B125L Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Siemens
QRH23B125L
Molded Case Circuit Breaker
Brand
Siemens
SKU
QRH23B125L
Quantity
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Siemens QRH23B125L - 125A 3 Pole Molded Case Circuit Breaker
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Description
Designed for standalone applications, this 125A unit mount circuit breaker provides dependable thermal-magnetic protection for industrial systems. The 3-pole device features fixed trip settings to handle overloads and short circuits. The breaker mounts into Siemens enclosures, meter centers, and switchboards. It includes line and load lugs (3TA1QR300) for immediate wiring and replaces the older QJH23B125L model. Rated 25kAIC at 240VAC, this QR-frame breaker is UL listed for reverse feed.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QRH23B125L |
| Series | QRH |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC |
| Frame Type | QRH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Meter Centers, Switchboards |
| Wire Gauge | 1 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 1 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 |
|---|---|
| Accessories | Line and Load Lugs Included (3TA1QR300) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
6 answersWhat older Siemens circuit breaker does the QRH23B125L replace?
The QRH23B125L is the direct replacement for the legacy QJH23B125L molded case circuit breaker.
Are the line and load lugs included with this breaker?
Yes, the L suffix in the catalog number indicates that the breaker comes with factory-installed line and load lugs. The included lug kit is part number 3TA1QR300.
What wire sizes are compatible with the included lugs?
The included 3TA1QR300 lugs accept aluminum or copper conductors ranging from 1 AWG to 300 kcmil.
Is the QRH23B125L suitable for reverse feed applications?
Yes, this breaker is UL listed for reverse feed applications, allowing it to be back-fed safely in compatible panels.
Can this breaker be used for heating, air conditioning, and refrigeration equipment?
Yes, the QRH23B125L is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration circuits.
What type of equipment is this QR-frame breaker designed for?
This unit mount breaker is designed for standalone applications and installs directly into compatible Siemens enclosures, meter centers, and switchboards.
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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
- CMChani M.Verified BuyerReviewingSiemens QRH23B150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/11/25Worked just as we needed it to.
Great buy.