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Siemens Q270 Miniature Circuit Breaker
- 70A
- 2 Pole
- Plug-On
Siemens
Q270
Miniature Circuit Breaker
Brand
Siemens
SKU
Q270
Quantity
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Siemens Q270 - 70A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Siemens Q270 - 70A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | Q270 |
| Series | QP |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Siemens Panelboards |
| Wire Gauge | 8-4 AWG (Cu), 8-2 AWG (Al) |
| Max Wire | 2 AWG (Al), 4 AWG (Cu) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Insta-Wire |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Sold out
Quantity
Siemens Q270 - 70A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | Q270-R |
| Series | QP |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Siemens Panelboards |
| Wire Gauge | 8-4 AWG (Cu), 8-2 AWG (Al) |
| Max Wire | 2 AWG (Al), 4 AWG (Cu) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Insta-Wire |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
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Description
Designed for residential power distribution, the Siemens Q270 is a 70A miniature circuit breaker delivering dependable thermal-magnetic protection. This QP series plug-on unit installs into standard Siemens load centers and panelboards. It also serves as an exact replacement for the discontinued Murray MP270, making it ideal for servicing older panels. Rated at 10kAIC at 120/240VAC, the two-pole breaker includes Insta-Wire connectors for faster setup and is fully HACR rated for HVAC systems.Specifications
| Brand | Siemens |
|---|---|
| Part Number | Q270 |
| Series | QP |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Siemens Panelboards |
| Wire Gauge | 8-4 AWG (Cu), 8-2 AWG (Al) |
| Max Wire | 2 AWG (Al), 4 AWG (Cu) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Insta-Wire |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Product FAQs
5 answersWhich electrical panels are compatible with the Siemens Q270?
The Siemens Q270 is designed for use in Siemens EQ, ES, PL, PN, and SN series load centers. It is also UL listed for use in most Murray load centers manufactured after January 2002.
Can the Siemens Q270 replace a Murray circuit breaker?
Yes. Siemens phased out the Murray brand and designated QP breakers, like the Q270, as the direct UL listed replacement for Murray MP-T and MP270 circuit breakers. Always verify panel compatibility before installation.
Is the Siemens Q270 suitable for HVAC equipment?
Yes, the Q270 is HACR rated, making it suitable for heating, air conditioning, and refrigeration applications that require a 70A branch circuit.
Can the Q270 be used as a back-fed main breaker?
Yes, it can be reverse fed for use as a main breaker in compatible Siemens load centers. However, you must install an approved hold-down kit, such as the Siemens ECMBR2, to meet NEC requirements.
Does the Q270 offer AFCI or GFCI protection?
No, the Q270 is a standard thermal magnetic circuit breaker. It provides overload and short-circuit protection but does not provide arc fault (AFCI) or ground fault (GFCI) protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
1 review
- RDRichard D.Rated 5 out of 5 stars11/3/18Great price
Hard to find breaker delivered quickly and at a great price.