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Square D Q2M3125MT Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Square D
Q2M3125MT
Molded Case Circuit Breaker
Brand
Square D
SKU
Q2M3125MT
Quantity
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Square D Q2M3125MT - 125A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
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Description
Engineered for reliable power distribution, the Square D Q2M3125MT is a 125A, three-pole molded case circuit breaker. It delivers robust thermal-magnetic protection for commercial and industrial facilities operating at 240VAC. Designed for bolt-on installation, this unit fits Square D NQOD panelboards, Meter-Pak, and EZM metering centers. It serves as a direct equivalent to the newer QBM32125TN substitute. Rated at 10kAIC, this top-mounting breaker features a non-interchangeable trip unit.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2M3125MT-R |
| Series | Q2M |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Meter-Pak, EZM Metering, NQOD Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Line Side Lugs Included, Mounting Hardware |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, Top Mounting, Main Breaker |
Product FAQs
4 answersWhich panelboards and metering centers accept the Q2M3125MT?
This bolt-on circuit breaker is designed for installation in Square D NQOD panelboards, Meter-Pak, and EZM metering centers.
What is the modern replacement for the legacy Q2M3125MT?
The Square D QBM32125TN is the direct, exact substitute for this legacy Q-Frame molded case circuit breaker.
Can the Q2M3125MT be used as a main circuit breaker?
Yes, this top-mounting breaker is equipped with load side lug terminals and is suitable for use as a main circuit breaker in compatible Square D equipment.
Are the trip settings adjustable on this Q2 series breaker?
No, this breaker features a non-interchangeable thermal magnetic trip unit with fixed long-time and instantaneous protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 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
1 review
- VGVern G.Verified BuyerReviewingSquare D Q2M3200MT - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/4/26Good breaker. No problems. Direct replacement.
Superbreakers was great to work with. The salesman checked and didn't have the breaker I was looking for, but found one at another location, had it shipped to me next day air, and it worked out great. Glad to see this type of customer service. I will call on them again when needed.