Eaton / Crouse-Hinds CROUSEMP2125 MP2125 - 125A 2 Pole Miniature Circuit Breaker
- 125A
- 2 Pole
- Plug-On
Quantity
Eaton / Crouse-Hinds MP2125 - 125A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Description
Built for residential and commercial applications, the Eaton CROUSEMP2125 is a 125A, two-pole miniature circuit breaker. It features a thermal-magnetic trip mechanism to protect against overloads and short circuits. This plug-on breaker installs into compatible Crouse-Hinds, Murray, and Siemens load centers. It serves as a direct replacement for Q2125 and MP2125 models, making it ideal for system maintenance.Specifications
| Brand | Eaton / Crouse-Hinds |
|---|---|
| Part Number | CROUSEMP2125-R |
| Series | MP |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Crouse-Hinds, Murray, Siemens Load Centers |
| Wire Gauge | 2 AWG - 1/0 AWG (Cu), 1/0 AWG - 2/0 AWG (Al) |
| Max Wire | 1/0 AWG (Cu), 2/0 AWG (Al) |
| Min Wire | 2 AWG (Cu), 1/0 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | CSA C22.2 No. 5, UL 489 |
|---|---|
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Common Trip, HACR Rated |
Product FAQs
6 answersWhat is the modern replacement for the Crouse-Hinds MP2125?
The Siemens Q2125 is the direct, modern cross-reference replacement for the discontinued Crouse-Hinds and Murray MP2125 circuit breakers.
Which load centers are compatible with the MP2125 circuit breaker?
This plug-on breaker is designed for use in Crouse-Hinds, Murray, and Siemens load centers that accept MP or QP series breakers. Always verify compatibility with your specific panel labeling.
What wire sizes are accepted by the lugs on the MP2125?
The terminals accept 2 AWG to 1/0 AWG copper wire, or 1/0 AWG to 2/0 AWG aluminum wire. Ensure proper gauge selection based on your 125A circuit requirements.
Can the MP2125 be used in both 120V and 240V applications?
Yes, this 2-pole breaker is rated for 120/240V AC systems. It provides a 10kA interrupting capacity (AIC) to safely clear faults at these voltages.
How does the MP2125 mount into the electrical panel?
It features a standard plug-in connection, allowing it to snap directly onto the bus bar of compatible load centers without the need for bolt-on hardware.
What type of trip mechanism does the MP2125 use?
It utilizes a fixed thermal-magnetic trip mechanism. This provides both long-time and instantaneous (LI) trip functions to protect the circuit against sustained overloads and sudden short circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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!