Siemens MP270 Molded Case Circuit Breaker
- 70A
- 2 Pole
- Plug-On
Quantity
Siemens MP270 - 70A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens MP270 - 70A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | MP270 |
| Series | MP |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | MP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 8-2 AWG (Cu/Al) |
| Max Wire | 2 AWG |
| 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, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Quantity
Siemens MP270 - 70A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | MP270-R |
| Series | MP |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | MP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 8-2 AWG (Cu/Al) |
| Max Wire | 2 AWG |
| 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, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Description
Built for residential and light commercial power distribution, this 70A double-pole plug-on breaker utilizes standard thermal-magnetic trip technology. It installs securely into Murray and Siemens load centers, providing reliable 120/240VAC branch circuit protection. Rated at 10kAIC, the unit features a common trip mechanism to ensure both poles open simultaneously during a fault. While the Murray MP line has been transitioned, this component remains fully compatible with existing panels.Specifications
| Brand | Siemens |
|---|---|
| Part Number | MP270 |
| Series | MP |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | MP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Murray Load Centers, Siemens Load Centers |
| Wire Gauge | 8-2 AWG (Cu/Al) |
| Max Wire | 2 AWG |
| 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, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Product FAQs
5 answersIs the Murray MP270 interchangeable with the Siemens QP270?
Yes. Siemens acquired Murray and has since phased out the Murray brand. Siemens issued an official substitution letter confirming that Siemens Type QP breakers, including the QP270, are the UL-listed direct replacements for Murray Type MP breakers.
Can I install the MP270 in a modern Siemens load center?
Yes, the MP270 is compatible with both Murray and Siemens load centers. Always check the wiring diagram inside your panel door to confirm that Type MP or Type QP breakers are listed as acceptable for that specific enclosure.
Is the MP270 approved for HVAC applications?
Yes, this breaker is HACR rated. It is certified for use with heating, air conditioning, and refrigeration motor loads that require a HACR-designated circuit breaker.
What are the conductor requirements for the MP270 lugs?
The mechanical lugs accept 8 AWG to 2 AWG conductors. Both copper and aluminum wire are permitted. Ensure the wire is sized appropriately for a 70-amp branch circuit per NEC guidelines.
Can the MP270 be used in panels requiring a 22kAIC rating?
No. The MP270 provides a standard 10kAIC rating. If your commercial or residential service requires 22kAIC or 65kAIC fault current protection, you must source a breaker specifically rated for those higher interrupting capacities.
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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!