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Square D Q2L3150H Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Square D
Q2L3150H
Molded Case Circuit Breaker
Brand
Square D
SKU
Q2L3150H
Quantity
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Square D Q2L3150H - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D Q2L3150H - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2L3150H |
| Series | Q2L |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Individual Enclosures, Switchboards, 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, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Common Trip, Quick-Make/Quick-Break, High Interrupting Capacity |
Quantity
Square D Q2L3150H - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q2L3150H-R |
| Series | Q2L |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Individual Enclosures, Switchboards, 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, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Common Trip, Quick-Make/Quick-Break, High Interrupting Capacity |
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150A 3 Pole Molded Case Circuit Breaker
Description
Built to handle higher fault currents, the Square D Q2L3150H delivers robust thermal-magnetic protection for commercial facilities. Designed as a unit mount MCCB, it fits into Square D switchboards, enclosures, and legacy NQOD panelboards. For modern upgrades, this frame is replaced by the QDL32150 catalog number. With an upgraded 22kAIC rating at 240VAC, it provides enhanced safety margins over standard models while the Visi-Trip indicator allows quick status checks.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q2L3150H |
| Series | Q2L |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Individual Enclosures, Switchboards, 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, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Common Trip, Quick-Make/Quick-Break, High Interrupting Capacity |
Product FAQs
7 answersWhat panelboards and enclosures are compatible with the Q2L3150H circuit breaker?
This unit mount breaker is designed for installation in legacy Square D NQOD panelboards, switchboards, and individual Q2 enclosures. Using this exact legacy Q2L breaker helps preserve the original UL listing of older NQOD panels.
What is the modern replacement for the legacy Q2L3150H circuit breaker?
The modern equivalent is the PowerPact Q-frame series. Specifically, the QDL32150 is the direct substitute that matches the 150A rating and provides a comparable high interrupting capacity. However, installing a PowerPact Q-frame in a legacy NQOD panel may affect the original UL listing.
How does the Q2L3150H mount into the panel or enclosure?
It is a unit mount, feed-thru circuit breaker that secures via mounting hardware and uses lugs on both the line and load sides, rather than plugging directly onto a busbar.
What wire sizes are accepted by the lugs on the Q2L3150H?
The factory-installed lugs accept aluminum or copper conductors ranging from 4 AWG to 300 kcmil.
Does the Q2L3150H feature a visual trip indicator?
Yes, this breaker includes a Visi-Trip indicator, which provides a clear visual confirmation when the breaker has tripped due to an overcurrent or short circuit event.
What type of trip unit is equipped on the Q2L3150H?
It features a non-interchangeable thermal-magnetic trip unit with fixed long-time and fixed instantaneous (LI) protection functions.
Can I use a modern PowerPact Q-frame breaker in my existing Q2 enclosure?
Yes, legacy Q2 enclosures such as the Q23225NF, Q23225NS, and Q23225NRB will accept modern PowerPact Q-frame circuit breakers, though you must verify that the short circuit ratings meet your system requirements.
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