Siemens MBKQJ1225 Main Breaker Kit
Siemens
MBKQJ1225
Main Breaker Kit
Brand
Siemens
SKU
MBKQJ1225
Quantity
Core Specs
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Siemens MBKQJ1225 - 225A 2 Pole Main Breaker Kit
New
Quantity
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Description
Built for commercial and industrial applications, the MBKQJ1225 serves as a reliable 225A main disconnect. This complete kit includes the thermal magnetic circuit breaker and necessary mounting hardware to establish primary overcurrent protection. Designed specifically for original Siemens P1 panelboards, this bolt-on assembly provides a secure fit. Note that this legacy kit is replaced by the MBKQR1225A for revised P1 panel designs. It delivers a 10kAIC rating at 240VAC for dependable safety.Specifications
| Brand | Siemens |
|---|---|
| Part Number | MBKQJ1225 |
| Series | MBK |
| Amperage | 225A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1 Panelboards |
| Wire Gauge | 6 AWG - 300 kcmil (Cu), 4 AWG - 300 kcmil (Al) |
| Max Wire | 300 kcmil |
| Min Wire | 6 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Mounting Hardware, Breaker, Lugs Included |
| Standards | UL 489, CSA C22.2 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Main Breaker Kit, 10kA Interrupt Rating |
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 8 reviews.
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Rating
8 reviews
- MEmichael e.Verified BuyerReviewingSiemens MBK150 - 150A 2 Pole Main Breaker KitI recommend this productRated 5 out of 5 stars9/28/26Excellent 👍
Came quickly, in great condition, worked perfectly
- RNRoderick N.Verified BuyerReviewingSiemens MBK200 2 Pole Circuit BreakerI recommend this productRated 5 out of 5 stars7/29/25Exact replacement!
Exact replacement 👍
- WKWilliam K.Verified BuyerReviewingSiemens MBK175A - 175A 2 Pole Main Breaker KitI recommend this productRated 5 out of 5 stars7/29/25Works perfey
Brand new, just as described. This was an odd amperage amount to stock, I'm glad they had this.
- MBMike B.ReviewingSiemens MBK200A - 200A 2 Pole Main Breaker KitI recommend this productRated 5 out of 5 stars3/11/21Classy Breaker
Brand new item, came packaged well. Quick deliverly
- FBFrank B.ReviewingSiemens MBK200A - 200A 2 Pole Main Breaker KitI recommend this productRated 5 out of 5 stars2/7/19Great company would like to
Great company would like to see orders shipped more quickly