Square D Q2M2225MB Molded Case Circuit Breaker
- 225A
- 2 Pole
- Bolt-On
Square D
Q2M2225MB
Molded Case Circuit Breaker
Brand
Square D
SKU
Q2M2225MB
Quantity
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Square D Q2M2225MB - 225A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Square D Q2M2225MB - 225A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2M2225MB-R |
| Series | Q2 |
| Amperage | 225A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q2M |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Metering Centers, 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 |
| Accessories | Lugs Included |
|---|---|
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, Main Breaker |
Quantity
Square D Q2M2225MB - 225A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2M2225MB-R |
| Series | Q2 |
| Amperage | 225A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q2M |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Metering Centers, 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 |
| Accessories | Lugs Included |
|---|---|
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, Main Breaker |
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Description
Functioning as a main breaker, this 225A thermal-magnetic unit provides reliable overcurrent protection for commercial applications. The Q2M2225MB features a 10 kAIC interrupt rating at 240V. It installs into Square D metering centers and panelboards using a secure bolt-on mounting style. When sourcing replacements for older systems, this Q2 frame breaker is superseded by the QDL22225 model. The breaker includes a Visi-Trip indicator, is HACR rated, and comes with standard lug terminals.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2M2225MB-R |
| Series | Q2 |
| Amperage | 225A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q2M |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Metering Centers, 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 |
| Accessories | Lugs Included |
|---|---|
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, Main Breaker |
Product FAQs
7 answersWhat equipment is the Square D Q2M2225MB circuit breaker designed to fit?
This 2-pole breaker is designed for bolt-on installation in Square D metering centers, EZ Meter-Pak multi-metering setups, and compatible commercial panelboards.
Can I use the Q2M2225MB in a standard plug-on load center?
No. This is a bolt-on molded case circuit breaker designed specifically for commercial panelboards and metering centers. It will not fit in standard residential QO or Homeline plug-on load centers.
Can I adjust the trip settings on the Q2M2225MB?
No. This breaker features a fixed thermal-magnetic trip unit. The long-time and instantaneous (LI) trip functions are factory set and non-interchangeable, meaning the 225A rating cannot be modified in the field.
What wire sizes and materials are compatible with the Q2M2225MB lugs?
The factory lugs are dual-rated for both aluminum and copper (Al/Cu) conductors, accepting wire sizes from 4 AWG up to 300 kcmil. Ensure proper torque specifications are followed during installation.
Is the Q2M2225MB suitable for high-fault commercial applications?
This breaker is rated for 10kAIC at 240V AC. You must verify that the available fault current at your specific installation point does not exceed 10,000 amps, as higher fault environments will require a different breaker series.
Does the Q2M2225MB include a visual trip indicator?
Yes, this Q-Frame breaker features a visual trip indicator that provides clear confirmation when the breaker has tripped due to an overcurrent or short circuit, allowing for faster troubleshooting in multi-metering setups.
Is the Q2M2225MB still an active Square D product line?
The Q2M2225MB is a legacy Q-Frame molded case circuit breaker. While it is part of an older generation, it remains widely used in existing Square D metering centers. When sourcing a replacement, verify whether your specific application requires load-side lugs or tapped studs, as the terminal configuration varies by catalog number.
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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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