Siemens / Murray MP240GFA GFCI Miniature Circuit Breaker
- 40A
- 2 Pole
- Plug-On
Siemens / Murray
MP240GFA
GFCI Miniature Circuit Breaker
Brand
Siemens / Murray
SKU
MP240GFA
Quantity
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Siemens / Murray MP240GFA - 40A GFCI Miniature Circuit Breaker
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Description
Featuring advanced self-test capabilities and a lockout function, the MP240GFA ensures your 5mA Class A ground-fault protection is always operational. This 2-pole, 40-amp plug-on breaker is rated for 10kAIC at 120/240VAC and includes a pigtail neutral for secure installation. Designed to fit older Murray and Siemens residential load centers, it helps maintain NEC compliance in damp or wet environments. While this specific unit is a legacy model, it is replaced by the Siemens QF240A.Specifications
| Brand | Siemens / Murray |
|---|---|
| Series | MP |
| Amperage | 40A |
| 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 | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Available Options | Padlock Attachment |
| Accessories | Pigtail Neutral |
| Standards | CSA C22.2 No. 5, 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
6 answersWhat is the Siemens equivalent to the Murray MP240GFA?
The direct Siemens equivalent is the QF240A. Siemens acquired Murray, and their QPF2 series breakers are the approved replacements for legacy Murray MP-GT ground fault breakers.
What level of ground fault protection does the MP240GFA provide?
This breaker provides Class A ground fault protection, which trips when it detects a ground fault of 5mA. This sensitivity level is required for personnel protection in wet or damp locations.
How is the neutral connected on this breaker?
The MP240GFA features a factory-installed pigtail neutral wire. This white pigtail must be connected directly to the neutral bus bar in the load center to power the internal ground fault circuitry.
Can I install this Murray breaker in a Siemens load center?
Yes. The MP240GFA is UL listed for use in both Murray and Siemens load centers that accept plug-on style breakers.
What applications typically require a 40A 2-pole GFCI breaker?
A 40A, 240V GFCI breaker is commonly used for wet-location applications requiring personnel protection, such as hot tubs, spas, and pool equipment.
Does this breaker provide Arc Fault (AFCI) protection?
No. The MP240GFA provides thermal-magnetic overload, short circuit, and ground fault protection, but it does not include arc fault detection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 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
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Rating
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!