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Siemens QRH22B100 Molded Case Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Siemens
QRH22B100
Molded Case Circuit Breaker
Brand
Siemens
SKU
QRH22B100
Quantity
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Siemens QRH22B100 - 100A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for high interrupting capacity, the Siemens QRH22B100 is a 2-pole, 100A MCCB. It utilizes a thermal-magnetic trip unit for long-time and instantaneous (LI) protection in commercial systems. This bolt-on breaker mounts into Siemens P2, P3, P4, and P5 panelboards, and SB switchboards. It serves as a direct replacement for legacy QJ22B100 and QJH22B100 breakers. Rated at 25kAIC at 240VAC, it includes a push-to-trip mechanism and supports reverse feed applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | QRH22B100 |
| Series | QRH |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P2, P3, P4, P5 Panelboards, SB Switchboards |
| 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, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Push-to-Trip, Non-Interchangeable Trip, High Interrupting Capacity |
Product FAQs
6 answersIs the Siemens QRH22B100 a direct replacement for older QJ frame breakers?
Yes, the QRH22B100 is the exact-fit replacement for discontinued QJ and QJH series breakers of the same rating. The newer QR frame maintains the same physical dimensions while adding a push-to-trip testing button and support for field-installable internal accessories.
Which Siemens panelboards accept the QRH22B100 circuit breaker?
This bolt-on breaker is designed for installation in Siemens P2, P3, P4, and P5 panelboards, as well as SB series switchboards.
Is the QRH22B100 suitable for reverse feed applications?
Yes, the QRH22B100 is UL listed for reverse feeding. It does not have line and load restrictions, making it suitable for backfeed applications.
What are the lug torque requirements for the QRH22B100?
Torque specifications depend on the wire size used in the standard lugs. Tighten 3 AWG to 1/0 AWG conductors to 100 in-lb, and 2/0 AWG to 300 kcmil conductors to 225 in-lb.
Are internal accessories field-installable on the QRH22B100?
Yes, the QR frame features a modular design that allows electricians to field-install internal accessories, such as shunt trips and auxiliary switches, without needing to order a custom factory build.
How can I manually test the mechanical operation of the QRH22B100?
The breaker features a built-in push-to-trip button on the front faceplate, allowing you to safely and easily verify the mechanical tripping mechanism.
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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.