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Square D QBM22100TN Molded Case Circuit Breaker
- 100A
- 2 Pole
- Unit Mount
Square D
QBM22100TN
Molded Case Circuit Breaker
Brand
Square D
SKU
QBM22100TN
Quantity
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Square D QBM22100TN - 100A 2 Pole Molded Case Circuit Breaker
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Description
Designed for NQ and NQOD panelboards, the Square D QBM22100TN is a 2-pole, 100A molded case circuit breaker from the PowerPacT Q-Frame series. It delivers dependable thermal-magnetic protection for commercial systems. This unit-mount breaker features factory-installed studs on the load side (indicated by the TN suffix) for specialized connections. It replaces the legacy Q2M2100MT breaker. Operating at 240VAC with a 10kAIC rating, it includes a Visi-Trip indicator for fast troubleshooting.Specifications
| Brand | Square D |
|---|---|
| Part Number | QBM22100TN |
| Series | QBM |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| 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 | Factory-installed Studs on Load Side (TN Suffix) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip, Main Breaker |
Product FAQs
8 answersWhich panelboards are compatible with the Square D QBM22100TN circuit breaker?
This unit-mount breaker is designed for installation in Square D NQ and NQOD panelboards, as well as compatible switchboards.
Can the QBM22100TN replace older Square D circuit breakers?
Yes, the QBM22100TN serves as a direct drop-in replacement for the discontinued legacy Q2M2100MT circuit breaker.
What does the TN suffix indicate on the QBM22100TN?
The TN suffix indicates that the breaker features factory-installed terminal studs on the load side (OFF end) and standard lugs on the line side (ON end) for specialized connections.
What wire sizes are accepted by the lugs on the QBM22100TN?
The line-side lugs accept aluminum or copper conductors ranging from 4 AWG to 300 kcmil.
How is the QBM22100TN installed into a panelboard?
This is a unit-mount, bolt-on circuit breaker that fastens directly to the panelboard or switchboard chassis using mounting hardware, rather than plugging onto a busbar.
How can I tell if the QBM22100TN has tripped?
The breaker features a visual trip indicator. When an overcurrent event occurs, the handle moves to a central tripped position, providing clear visual confirmation to assist with troubleshooting.
Are the trip settings adjustable on the QBM22100TN?
No, this breaker features a fixed thermal-magnetic trip unit. Both the Long-Time (L) and Instantaneous (I) protection functions are factory-set and non-adjustable.
Is the QBM22100TN HACR rated?
Yes, this PowerPacT Q-Frame circuit breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
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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