Siemens / Murray MP150 Miniature Circuit Breaker
- 50A
- 1 Pole
- Plug-On
Quantity
Siemens / Murray MP150 - 50A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Quantity
Siemens / Murray MP150 - 50A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Siemens / Murray |
|---|---|
| Part Number | MP150 |
| Series | MP |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 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 |
Quantity
Siemens / Murray MP150 - 50A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens / Murray |
|---|---|
| Part Number | MP150-R |
| Series | MP |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 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 |
Description
Engineered for residential applications, the Siemens MP150 provides 50 amps of reliable circuit protection. This single-pole component utilizes proven thermal-magnetic trip technology to handle everyday electrical loads. It installs into older Murray and Siemens load centers without requiring special adapters. As a discontinued model, it serves as an exact fit for panels that originally specified MP series components.Specifications
| Brand | Siemens / Murray |
|---|---|
| Part Number | MP150-R |
| Series | MP |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 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 |
Product FAQs
5 answersWhat is the direct Siemens replacement for the Murray MP150?
Siemens acquired Murray and phased out the MP series. The direct, UL listed replacement for the Murray MP150 is the Siemens Q150 from the QP series.
Can I install this Murray MP150 breaker in a Siemens load center?
Yes. Murray MP breakers and Siemens QP breakers share the same physical design and are UL listed for interchangeability in both Siemens and Murray load centers.
Is the MP150 circuit breaker HACR rated?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific protection.
What wire sizes are compatible with the lugs on this 50A breaker?
The load side lugs accept 8 to 6 AWG copper wire or 8 to 4 AWG aluminum wire.
Is this 50A breaker designed for 120V or 240V applications?
The MP150 is a single-pole breaker rated for 120V AC maximum. It cannot be used for 240V applications, which require a two-pole breaker.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
- JVJulie V.Verified BuyerReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/5/26on breaker
so far so good on the refurbished breaker
- JFJon F.ReviewingSiemens / Murray MP250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/17/20Sales
Fantastic group to work with...
- DSDavid S.ReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars1/5/20Thank you so much for
Thank you so much for sending me a 100 amp breaker that was in the condition that you said it would be in.With out your breaker I would still be in the dark Thank you David
- RARichard A.ReviewingSiemens / Murray MP2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/13/19Awesome!
Your prices and number of available items to choose from is Awesome!