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Siemens / Murray MP250GFA GFCI Miniature Circuit Breaker

  • 50A
  • 2 Pole
  • Plug-On
Siemens / Murray MP250GFA
GFCI Miniature Circuit Breaker
Brand Siemens / Murray
SKU MP250GFA
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  • 50A
  • 2 Pole
  • Plug-On

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Siemens / Murray MP250GFA - 50A GFCI Miniature Circuit Breaker

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$232.00 No Stock

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Description

Providing enhanced safety, the Siemens Murray MP250GFA operates as a 50A, two-pole GFCI breaker. It delivers 5mA Class A protection for high-draw equipment in wet locations to meet NEC standards. This plug-on breaker mounts into legacy Murray enclosures as a reliable replacement. For updated installations, it has been officially replaced by the Siemens QF250A. Rated for 10 kAIC, it includes a self-test function and a lockout feature that prevents resetting if protection is compromised.

Specifications

Key specifications
Brand Siemens / Murray
Part Number MP250GFA
Series MP
Amperage 50A
Poles 2
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 8-6 AWG (Cu), 8-4 AWG (Al)
Max Wire 6 AWG (Cu), 4 AWG (Al)
Min Wire 8 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LIG
Trip Function Long-Time, Instantaneous, Ground Fault
Trip Adjustability Fixed
Standards and features
Special Classification GFCI
Available Options Padlock Attachment
Accessories Self-Test Feature
Standards CSA C22.2, UL 489, UL 943
Approval CSA, UL
Temp Rating 40C
Construction Features Class A Ground Fault Protection (5mA), Self-Test, HACR Rated, Common Trip

Product FAQs

7 answers
What is the Siemens equivalent for the Murray MP250GFA?

Siemens phased out the Murray brand and lists the Siemens QF250A as the direct, UL listed replacement for this 50A, 2-pole GFCI breaker.

Can I install this Murray breaker in a Siemens load center?

Yes. Siemens acquired Murray, and their official compatibility letters confirm that Murray and Siemens breakers are interchangeable in panels manufactured after January 2002. Always verify your specific panel label for approved breaker types.

What type of ground fault protection does the MP250GFA provide?

This breaker provides Class A ground fault protection. It is designed for personnel protection and will trip to de-energize the circuit if it detects a ground fault current of 5mA or higher.

How is the neutral connection wired on this GFCI breaker?

This breaker features a pigtail neutral. The coiled white pigtail wire must be connected directly to the neutral bus bar in your load center, while the load neutral wire connects to the breaker itself.

What applications typically require a 50A, 2-pole GFCI breaker?

A 50A, 2-pole GFCI is commonly installed to meet electrical code requirements for high-current 240V outdoor or wet-location equipment, such as hot tubs, spas, and large RV receptacles.

What does the LIG trip function code mean on this breaker?

LIG stands for Long-Time, Instantaneous, and Ground-Fault. This means the thermal-magnetic trip unit provides delayed tripping for mild overloads, immediate tripping for severe short circuits, and dedicated protection against ground faults.

Does this breaker include a self-test feature?

Yes, the MP250GFA includes a self-test and lockout feature as required by UL 943 standards to ensure the ground fault circuitry is functioning properly.

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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!