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Square D QBM32225TN Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Square D
QBM32225TN
Molded Case Circuit Breaker
Brand
Square D
SKU
QBM32225TN
Quantity
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Square D QBM32225TN - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
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Square D QBM32225TN - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QBM32225TN |
| Series | QBM |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 208Y/120VAC, 10kA @ 240VAC |
| Frame Type | QBM |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | NQ Panelboards, NQOD Panelboards, Switchboards |
| 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, Padlock Attachment |
|---|---|
| Accessories | Terminal Nut Kit (Load Side) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, 80% Rated, Push-To-Trip |
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Square D QBM32225TN - 225A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QBM32225TN |
| Series | QBM |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 208Y/120VAC, 10kA @ 240VAC |
| Frame Type | QBM |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | NQ Panelboards, NQOD Panelboards, Switchboards |
| 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, Padlock Attachment |
|---|---|
| Accessories | Terminal Nut Kit (Load Side) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, 80% Rated, Push-To-Trip |
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Description
Built for robust power distribution, the Square D QBM32225TN is a 225A, 3-pole molded case circuit breaker featuring thermal-magnetic trip technology. It provides fixed long-time and instantaneous protection for commercial and industrial electrical systems. Designed for unit mounting, it integrates easily into NQ and NQOD panelboards as well as standard switchboards. This PowerPacT Q-Frame breaker replaces the older Q2M3225MT and features a 10kAIC rating at 240VAC with Visi-Trip technology.Specifications
| Brand | Square D |
|---|---|
| Part Number | QBM32225TN |
| Series | QBM |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 208Y/120VAC, 10kA @ 240VAC |
| Frame Type | QBM |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | NQ Panelboards, NQOD Panelboards, Switchboards |
| 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, Padlock Attachment |
|---|---|
| Accessories | Terminal Nut Kit (Load Side) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, 80% Rated, Push-To-Trip |
Product FAQs
8 answersCan I use the QBM32225TN to replace an older Q2M3225MT breaker?
Yes, the Square D QBM32225TN is the direct modern replacement for the legacy Q2M3225MT. It provides the same 225A, 3-pole configuration and stud/tapped pad connections for seamless integration into existing equipment.
Is the QBM32225TN compatible with NQOD panelboards?
Yes, this PowerPacT Q-frame breaker is designed for unit mounting in both legacy NQOD and current NQ series panelboards, as well as compatible switchboards.
What does the TN suffix indicate on the QBM32225TN catalog number?
The TN suffix indicates that the breaker is equipped with factory-installed terminal nuts or tapped pads rather than standard mechanical lugs on both ends. This configuration is often required for specific tenant main or multi-metering equipment connections.
What are the wire gauge and torque requirements for this breaker?
The QBM32225TN accepts 4 AWG to 300 kcmil aluminum or copper conductors. For a secure and compliant installation, these connections must be tightened to 248 lb-in (28 N.m).
How does the thermal-magnetic trip unit function on the QBM32225TN?
It utilizes a fixed thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal mechanism handles sustained overloads, while the magnetic component provides immediate tripping during short-circuit faults.
Does this breaker include a push-to-trip feature for testing?
Yes, PowerPacT Q-frame breakers like the QBM32225TN feature an integral push-to-trip button on the cover. This allows electricians to manually trip the breaker to verify the mechanical operation of the trip mechanism during routine maintenance.
Can this breaker be used on a 208Y/120V 3-phase system?
Yes, the QBM32225TN is a 3-pole breaker rated for use on 3-phase AC systems up to 240V, making it fully compatible with 208Y/120V solid-grounded wye configurations.
Is the QBM32225TN a bolt-on or plug-on breaker?
This is a unit-mount, bolt-on circuit breaker. It requires physical bolting to the panelboard or switchboard bus, ensuring a secure, high-capacity connection suitable for 225A commercial applications.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- MPMichael P.Verified BuyerReviewingSquare D QBM32200TN - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/14/26Owner…..Payne Electric
Got exactly what I ordered.
- TMTony M.Verified BuyerRated 5 out of 5 stars12/12/25Square D circuit breakers
As always, I order circuit breakers from super breakers and I receive my order the very next day. Great service, very dependable. !
Also there prices are great .
Tony