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Siemens / Murray MP250GF GFCI Miniature Circuit Breaker

  • 50A
  • 2 Pole
  • Plug-On
Siemens / Murray MP250GF
GFCI Miniature Circuit Breaker
Brand Siemens / Murray
SKU MP250GF
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  • 50A
  • 2 Pole
  • Plug-On

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MP250GF

Siemens / Murray MP250GF - 50A GFCI Miniature Circuit Breaker

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$102.73 No Stock

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Description

Designed to meet NEC codes, the Siemens Murray MP250GF provides essential 5mA ground-fault protection. This 50A, two-pole GFCI breaker secures heavy-duty residential loads in damp environments like hot tubs. It installs seamlessly into legacy Murray and Siemens load centers, offering an exact fit. While this remains a legacy part, it has been officially replaced by the Siemens QF250A. The breaker features a 10 kAIC interrupting rating and utilizes a reliable thermal-magnetic trip unit.

Specifications

Key specifications
Brand Siemens / Murray
Part Number MP250GF
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 Thermal, Fixed Magnetic
Standards and features
Special Classification GFCI
Available Options Padlock Attachment
Standards CSA C22.2 No. 5, UL 489, UL 943
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Self-Test, Common Trip

Product FAQs

6 answers
What is the Siemens replacement for the Murray MP250GF?

Siemens phased out the Murray brand and replaced the MP250GF with the Siemens QF250A. The QF250A is the UL listed direct replacement for use in Murray load centers.

Can I install the MP250GF in a Siemens load center?

Yes. Because Siemens manufactured Murray products, this breaker is UL listed for use in both Murray and Siemens plug-on load centers.

Is the MP250GF rated for personnel protection or equipment protection?

This breaker provides Class A ground fault protection, meaning it trips at a 5mA threshold. It is designed for personnel protection in wet locations such as pools, spas, and outdoor circuits.

How is the pigtail neutral connected on this GFCI breaker?

The coiled white pigtail wire must be connected directly to the neutral bus bar in the panel. This powers the internal GFCI circuitry, allowing the breaker to monitor for ground faults.

How do I wire a straight 240V load that does not have a neutral wire?

For a strict 240V load without a neutral, connect the two hot wires to the breaker lugs and leave the load neutral lug empty. You must still connect the breaker's white pigtail to the panel neutral bus for the GFCI to function.

Can I use this 50A GFCI breaker for a hot tub panel?

Yes, a 50A 2-pole GFCI is the standard requirement for many residential hot tubs and spas. Always verify the manufacturer specifications of your spa to confirm the 50A rating is appropriate.

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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!