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Square D Q2M3175MT Molded Case Circuit Breaker
- 175A
- 3 Pole
- Bolt-On
Square D
Q2M3175MT
Molded Case Circuit Breaker
Brand
Square D
SKU
Q2M3175MT
Quantity
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Square D Q2M3175MT - 175A 3 Pole Molded Case Circuit Breaker
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175A 3 Pole Molded Case Circuit Breaker
175A 3 Pole Molded Case Circuit Breaker
Description
Part of the legacy Q2M series, this 175A, three-pole molded case circuit breaker delivers robust thermal-magnetic protection for commercial environments. It is configured for top-mounting as a main breaker, featuring line side lugs and load side studs. The unit mounts into Square D Meter-Pak, EZM Metering, and NQOD panelboards. Rated for 10kAIC at 240VAC, it provides essential long-time and instantaneous (LI) trip functions. Note that this model is replaced by the QBM32175TN.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2M3175MT-R |
| Series | Q2M |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | Q2M |
|---|---|
| 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Top Mounting, Non-Interchangeable Trip, Main Breaker |
Product FAQs
6 answersWhat panelboards and metering centers is the Q2M3175MT compatible with?
This breaker mounts into Square D Meter-Pak, EZM Metering centers, and NQOD panelboards.
Is the Q2M3175MT still manufactured or is there a direct replacement?
The Q2M3175MT is part of the legacy Q2M series. It has been replaced by the PowerPact Q-Frame catalog number QBM32175TN for newer installations.
What does the MT suffix indicate on this Square D breaker?
The MT suffix indicates that the breaker is configured for top mounting as a main breaker. It features line side lugs and load side studs for direct connection in metering equipment.
Can this breaker be bottom-mounted?
No, the MT suffix designates this breaker specifically for top mounting as a main breaker in compatible Square D metering equipment.
What is the terminal configuration for the Q2M3175MT?
This breaker is configured with line side lugs that accept 4 AWG to 300 kcmil aluminum or copper wire, and load side studs for bolting directly to the panel bus.
What safety precautions should be taken before installing this bolt-on main breaker?
Always completely de-energize the panel or metering center before installation. Verify the power is off using a properly rated voltage tester, and follow all local electrical codes and lockout/tagout procedures.
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