Siemens MBKQJ1200 Main Breaker Kit
Siemens
MBKQJ1200
Main Breaker Kit
Brand
Siemens
SKU
MBKQJ1200
Quantity
Core Specs
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Siemens MBKQJ1200 - 200A 2 Pole Main Breaker Kit
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Quantity
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Description
Built for heavy-duty commercial applications, this 200-amp main disconnect provides essential overcurrent protection for entire distribution networks. The bolt-on kit mounts into original Siemens P1 panelboards, utilizing a proven QJ frame architecture. With a standard 10kA interrupting capacity at 240VAC, it delivers reliable thermal-magnetic tripping for long-time and instantaneous faults. Load side lugs and necessary mounting hardware are included to complete the panel integration.Specifications
| Brand | Siemens |
|---|---|
| Part Number | MBKQJ1200 |
| Series | MBK |
| Amperage | 200A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | MBKQJ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1 Panelboards (Original) |
| 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, Alarm Switch |
|---|---|
| Accessories | Mounting Hardware, Load Side Lugs Included |
| Standards | UL 489, CSA C22.2 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Main Breaker, HACR Rated |
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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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