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Siemens / Murray MP115 Miniature Circuit Breaker

  • 15A
  • 1 Pole
  • Plug-On
Siemens / Murray MP115
Miniature Circuit Breaker
Brand Siemens / Murray
SKU MP115
Select Item Condition
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  • 15A
  • 1 Pole
  • Plug-On

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Murray MP115 1 Pole Circuit Breaker

Siemens / Murray MP115 - 15A 1 Pole Miniature Circuit Breaker

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$2.10 No Stock

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Description

Engineered to maintain existing residential systems, the Siemens MP115 delivers 15 amps of thermal-magnetic protection. This single-pole plug-on unit features SWD and HACR ratings for standard lighting or HVAC use. It installs into legacy Murray and Siemens load centers, offering a seamless fit for older panelboards. For modern upgrades, this model is replaced by the Q115. A standard 10kAIC rating ensures safe fault interruption. Insta-Wire connectors speed up the wiring process.

Specifications

Key specifications
Brand Siemens / Murray
Part Number MP115-R
Series MP
Amperage 15A
Poles 1
Mounting Style Plug-On
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Frame Type MP
Terminal Type Lugs
For Use With Murray Load Centers, Siemens Load Centers
Wire Gauge 14-8 AWG (Cu), 12-8 AWG (Al)
Max Wire 8 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Padlock Attachment
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, SWD Rated, Insta-Wire

Product FAQs

6 answers
Is the Murray MP115 circuit breaker discontinued?

Yes, Siemens phased out the Murray brand in 2019. The official UL-listed replacement for the Murray MP115 is the Siemens Q115 (Type QP) circuit breaker.

Can I use a Siemens QP breaker to replace a Murray MP115?

Yes, Siemens Type QP breakers, such as the Q115, are the officially documented and UL-listed replacements for Murray Type MP-T breakers in Murray load centers.

What panels are compatible with the MP115 circuit breaker?

The MP115 is designed for use in legacy Murray load centers and is also compatible with Siemens PL, ES, and EQ series load centers.

What wire sizes are accepted by the MP115 terminals?

The load side lugs accept 14 to 8 AWG copper wire or 12 to 8 AWG aluminum wire for standard lighting and receptacle circuits.

Does the MP115 require a bolt-on connection?

No, this is a plug-in circuit breaker designed to snap directly onto the bus bar of a compatible load center.

Does the MP115 provide AFCI or GFCI protection?

No, the MP115 is a standard thermal-magnetic circuit breaker. It does not provide arc-fault or ground-fault protection.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
4 reviews
  • JV
    Julie V.
    Verified Buyer
    Reviewing
    Siemens / Murray MP2100 - 100A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/5/26
    on breaker

    so far so good on the refurbished breaker

  • JF
    Jon F.
    Flag of United States
    Reviewing
    Siemens / Murray MP250 - 50A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/17/20
    Sales

    Fantastic group to work with...

  • DS
    David S.
    Flag of United States
    Reviewing
    Siemens / Murray MP2100 - 100A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/5/20
    Thank 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

  • RA
    Richard A.
    Flag of United States
    Reviewing
    Siemens / Murray MP2100 - 100A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/13/19
    Awesome!

    Your prices and number of available items to choose from is Awesome!