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Siemens MBK150A Main Breaker Kit
Siemens
MBK150A
Main Breaker Kit
Brand
Siemens
SKU
MBK150A
Quantity
Core Specs
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Siemens MBK150A - 150A 2 Pole Main Breaker Kit
New
Quantity
Quantity
Siemens MBK150A - 150A 2 Pole Main Breaker Kit
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | MBK150A |
| Series | MBK |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Ultimate Load Centers, PL Series, ES Series |
| Wire Gauge | 1 AWG - 3/0 AWG (Cu/Al) |
| Max Wire | 3/0 AWG |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | 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, 22kA Interrupt Rating, Common Trip |
Sold out
Quantity
Siemens MBK150A - 150A 2 Pole Main Breaker Kit
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | MBK150A-R |
| Series | MBK |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Ultimate Load Centers, PL Series, ES Series |
| Wire Gauge | 1 AWG - 3/0 AWG (Cu/Al) |
| Max Wire | 3/0 AWG |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | 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, 22kA Interrupt Rating, Common Trip |
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Description
Serving as the primary disconnect for residential systems, the Siemens MBK150A is a 150A main breaker conversion kit. Operating at 120/240VAC, this two-pole breaker ensures safe and reliable power distribution throughout the home. Designed to mount into Siemens Ultimate, PL, and ES series load centers using a secure bolt-on connection. It acts as a replacement for the older MBK150 and EQ9683 models. Featuring a 22kAIC interrupt rating, this kit handles substantial fault currents.Specifications
| Brand | Siemens |
|---|---|
| Part Number | MBK150A |
| Series | MBK |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Ultimate Load Centers, PL Series, ES Series |
| Wire Gauge | 1 AWG - 3/0 AWG (Cu/Al) |
| Max Wire | 3/0 AWG |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | 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, 22kA Interrupt Rating, Common Trip |
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 7 reviews.
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Rating
7 reviews
- 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
- RDRichard D.ReviewingSiemens MBK200 2 Pole Circuit BreakerI recommend this productRated 4 out of 5 stars1/2/19CEO
I’m working with Adam on a return right now
I’ll let you know the outcome