Square D Q2M2150MT Molded Case Circuit Breaker
- 150A
- 2 Pole
- Bolt-On
Square D
Q2M2150MT
Molded Case Circuit Breaker
Brand
Square D
SKU
Q2M2150MT
Quantity
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Square D Q2M2150MT - 150A 2 Pole Molded Case Circuit Breaker
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Square D Q2M2150MT - 150A 2 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | Q2M2150MT-R |
| Series | Q2 |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D QO Load Centers, NQ 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Quantity
Square D Q2M2150MT - 150A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2M2150MT-R |
| Series | Q2 |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D QO Load Centers, NQ 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Engineered for reliable power distribution, the Square D Q2M2150MT is a 2-pole, 150A molded case circuit breaker providing essential thermal-magnetic protection. This bolt-on MCCB installs into Square D QO load centers and NQ panelboards. It replaces aging infrastructure and is cross-referenced with the QBM22150TN. Featuring a 10kAIC rating at 120/240VAC, it includes non-interchangeable trip units and line/load lugs. A Visi-Trip indicator allows quick fault identification.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2M2150MT-R |
| Series | Q2 |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D QO Load Centers, NQ 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
4 answersIs there a direct replacement for the discontinued Q2M2150MT?
Yes, Schneider Electric designates the Square D QBM22150TN as the direct drop-in replacement. It provides the exact same form, fit, and function for legacy panels.
What is the terminal configuration on this breaker?
This model features lug terminals on the line side and 1/4-20 threaded studs on the load side. Verifying this specific arrangement is critical when replacing a main breaker in older equipment.
Which panelboards accept this circuit breaker?
It is designed to bolt directly into legacy Square D QO load centers and NQ panelboards, where it is frequently utilized as a main tenant breaker.
Why is verifying the terminal arrangement critical for this replacement?
Legacy Square D equipment was engineered for specific connection points. Attempting to install a breaker with standard lugs on both ends, rather than the required load-side studs, will prevent proper installation and compromise electrical safety.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 7 reviews.
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Rating
7 reviews
- MEMichael E.Verified BuyerReviewingSquare D Q221150AC - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/28/26breaker purchase
delivered on time and quality was as advertised
- MWmakalita w.Verified BuyerReviewingSquare D Q232150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/18/26Prompt service.
Well packaged
- AWAllen W.ReviewingSquare D Q232175 - 175A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/17/22Great condition
The breakers were in great condition. The serve was also great.
- JCJim C.ReviewingSquare D Q232200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/13/22Great Service
My order was received fast. The packaging was perfect. The quality of the product was what was expected.
- RDRosemarie D.ReviewingSquare D Q232150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/1/20home
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