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Square D Q2M3100MT Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Square D
Q2M3100MT
Molded Case Circuit Breaker
Brand
Square D
SKU
Q2M3100MT
Quantity
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Square D Q2M3100MT - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D Q2M3100MT - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2M3100MT |
| Series | Q2M |
| Amperage | 100A |
| 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 | UL 489, CSA C22.2 No. 5, ANSI C37 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Top Mounting, Non-Interchangeable Trip, Main Breaker |
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Square D Q2M3100MT - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2M3100MT |
| Series | Q2M |
| Amperage | 100A |
| 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 | UL 489, CSA C22.2 No. 5, ANSI C37 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Top Mounting, Non-Interchangeable Trip, Main Breaker |
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Description
Part of the legacy Q-frame family, the Q2M3100MT offers 100 amps of reliable thermal-magnetic protection. This specific model features a top-mounting configuration with line side lugs and load side studs for specialized commercial applications. It fits securely into Square D EZM metering equipment and NQOD panelboards. For modern upgrades, this unit is officially replaced by the QBM32100TN. The breaker carries a 10kAIC rating at 240VAC and includes a non-interchangeable trip unit.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2M3100MT |
| Series | Q2M |
| Amperage | 100A |
| 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 | UL 489, CSA C22.2 No. 5, ANSI C37 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Top Mounting, Non-Interchangeable Trip, Main Breaker |
Product FAQs
6 answersWhat enclosures and panelboards are compatible with the Q2M3100MT?
This legacy Q-frame breaker is specifically designed to bolt into Square D Meter-Pak, EZM metering centers, and NQOD panelboards.
What is the modern replacement for the legacy Q2M3100MT?
For new installations or panel upgrades, the Q2M3100MT is officially replaced by the Square D QBM32100TN circuit breaker.
What is the terminal and mounting configuration for the Q2M3100MT?
This specific model features a top-mounting configuration equipped with line side lugs and load side studs. It is designed to bolt directly to the bus in specialized commercial applications like EZM metering.
What wire sizes and materials are supported by the Q2M3100MT lugs?
The factory-installed line side lugs accommodate both aluminum and copper conductors, accepting wire gauges from 4 AWG up to 300 kcmil.
How does the thermal-magnetic trip unit on the Q2M3100MT operate?
It utilizes fixed Long-Time and Instantaneous (LI) trip functions. The thermal component provides delayed tripping for continuous overloads, while the magnetic component trips instantly during severe short circuits.
Can the Q2M3100MT be used in systems with an available fault current higher than 10kA?
No, this breaker has a maximum interrupting rating of 10kA at 240VAC. If installed in a system with a higher available fault current, it must be protected by a fully rated upstream device or be part of a tested series-rated combination.
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