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Siemens QRH23B100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Siemens
QRH23B100
Molded Case Circuit Breaker
Brand
Siemens
SKU
QRH23B100
Quantity
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Siemens QRH23B100 - 100A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial use, this three-pole Siemens MCCB delivers dependable overcurrent protection. The 100A breaker features a bolt-on mounting style, designed specifically for Siemens P1, P2, and P3 panelboards, switchboards, and motor control centers. It serves as an exact replacement for the older QJH23B100 model. With a 25kAIC rating at 240VAC, it utilizes fixed thermal magnetic trip units for precise LI protection and supports reverse feed applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QRH23B100 |
| Series | QRH |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards, Motor Control 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, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Push-to-Trip, Non-Interchangeable Trip |
Product FAQs
5 answersWhich panelboards are compatible with the QRH23B100 circuit breaker?
This bolt-on breaker is compatible with Siemens P1, P2, and P3 panelboards, along with Siemens switchboards and motor control centers designed for QJ or QR frame branch breakers.
What differentiates the QRH23B100 from a standard QR23B100?
The QRH23B100 is a high-interrupting model. It provides a 25kAIC short-circuit rating at 240V, whereas the standard QR23B100 is only rated for 10kAIC. Both models share the exact same physical dimensions and mounting footprint.
Does the QR frame replace older Siemens and ITE circuit breakers?
Yes, the current QR frame series is the direct replacement for legacy Siemens and ITE QJ frame circuit breakers. The QRH23B100 can be used to upgrade or replace older 100-amp, 3-pole high-interrupting models like the QJH23B100.
What type of wire is approved for the factory lugs on this breaker?
The factory-installed mechanical lugs accept both aluminum and copper conductors, accommodating wire sizes from 3 AWG up to 300 kcmil. Always consult the National Electrical Code (NEC) to ensure your selected conductor size and insulation rating are appropriate for a 100-amp continuous load.
Can the trip settings on the QRH23B100 be adjusted in the field?
No, this breaker features a non-interchangeable, fixed thermal-magnetic trip unit. The long-time and instantaneous (LI) trip functions are strictly factory set to protect 100-amp circuits and cannot be modified by the user.
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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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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.