Siemens Q2225BH Miniature Circuit Breaker
- 225A
- 2 Pole
- Plug-On
Siemens
Q2225BH
Miniature Circuit Breaker
Brand
Siemens
SKU
Q2225BH
Quantity
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Siemens Q2225BH - 225A 2 Pole Miniature Circuit Breaker
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Description
Functioning as a primary main breaker, this 225-amp, two-pole unit provides 22kAIC protection for residential and commercial electrical systems. The component requires four spaces and installs into compatible Siemens load centers or P1 panelboards. Designed to replace the discontinued Murray MP2225BH, it features a common trip mechanism and HACR certification for heating and cooling equipment.Specifications
| Brand | Siemens |
|---|---|
| Series | Q |
| Amperage | 225A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers (Requires 4 Spaces), Siemens P1 Panelboards |
| Wire Gauge | #4 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | #4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, High Interrupting Capacity, Requires 4 Spaces, Main Breaker |
Product FAQs
4 answersWhich panels accept the Siemens Q2225BH circuit breaker?
The Q2225BH is designed for use in compatible Siemens load centers and Siemens P1 panelboards. Because of its physical size and 225-amp rating, it requires 4 full panel spaces for installation.
How does the Q2225BH connect to the panel bus?
It features a plug-in connection type, allowing it to snap directly onto the bus bars of compatible Siemens load centers and P1 panelboards without the need for bolt-on hardware.
What is the difference between the Siemens Q2225B and Q2225BH?
The primary difference is the interrupting rating. The Q2225B has a standard 10kAIC rating, while the Q2225BH features a higher 22kAIC rating for systems with higher available fault current.
How does the thermal-magnetic trip unit in the Q2225BH function?
The thermal-magnetic mechanism provides dual protection. The thermal component offers long-time protection against sustained overloads, while the magnetic component provides instantaneous protection against short circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 48 reviews.
Reviews Summary
Generated by AI from 91 most recent customer reviews
Last updated 8/1/25
Customers say these circuit breakers arrive quickly and match their specifications perfectly. Many reviews mention success finding hard-to-locate specialty breakers through this supplier. Common feedback includes praise for the accurate product descriptions, reliable shipping, and competitive pricing. While some note occasional stock limitations, users consistently report the breakers fit and function as intended.
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Rating
48 reviews
- DTDawn T.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/8/26Timely
This is exactly what I was looking for! Worked perfectly, arrived promptly, no hassles.
- CGCrocefissa G.Verified BuyerReviewingSiemens Q115 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Quick delivery and great price.
The circuit breakers are at a great cost.
- JBJason B.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Great experience
The product was exactly what I needed and it arrived on time.
- DQDon Q.Verified BuyerReviewingSiemens Q3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/26Siemens breaker
Great customer experience, great prices and fast shipping... Definitely will be buying her again.
- CSChristopher S.Verified BuyerRated 5 out of 5 stars8/12/26Siemens 60
Perfect new condition