Square D QOM2100VH1021 Miniature Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Quantity
Square D QOM2100VH1021 - 100A 2 Pole Miniature Circuit Breaker
New
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Description
Designed for remote shutdown applications, the QOM2100VH1021 integrates a 120/208/240VAC shunt trip mechanism. This 100A, 2-pole main breaker provides reliable thermal-magnetic protection for residential and commercial facilities. It mounts into Square D QO and Homeline panelboards via a sturdy bolt-on connection. The unit serves as a substitute for the standard QOM2100VH when remote tripping is required. It features a 22kAIC rating and the signature Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Series | QOM |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | QO Load Centers, Homeline Load Centers |
| 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 |
| Available Options | Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (120/208/240VAC) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator |
Product FAQs
7 answersWhat load centers are compatible with the QOM2100VH1021 main breaker?
This breaker is compatible with both Square D QO and Homeline load centers, provided the panel is designed to accept a QOM2 frame primary main breaker.
What does the 1021 suffix indicate on this Square D breaker?
The 1021 suffix means this breaker includes a factory-installed 120/240VAC shunt trip. This allows the breaker to be tripped remotely by applying a voltage signal, which is commonly used for emergency shutdown systems.
What is the difference between the QOM2100VH and the QOM2100VH1021?
Both are 100A, 2-pole main breakers for QO and Homeline panels. However, the QOM2100VH1021 includes a factory-installed 120/240VAC shunt trip for remote tripping capabilities, whereas the standard QOM2100VH does not.
Can I add a shunt trip to a standard QOM2100VH breaker in the field?
No, the shunt trip mechanism on the QOM2100VH1021 is factory-installed. Square D does not offer a field-installable shunt trip kit for QOM2 frame main breakers.
Does the QOM2100VH1021 require a separate control power source for the shunt trip?
Yes, the factory-installed shunt trip coil requires an external 120/240VAC power source to operate. When this external voltage is applied to the coil, it mechanically opens the breaker contacts.
What is the purpose of the Visi-Trip indicator on this breaker?
The Visi-Trip indicator provides a highly visible red flag when the breaker trips due to an overcurrent condition or a remote shunt trip signal. This allows electricians and maintenance personnel to quickly identify the tripped breaker in a crowded panel.
Is the QOM2100VH1021 rated for continuous duty?
Like most standard molded case circuit breakers, it is rated for 80 percent continuous duty. Continuous loads should not exceed 80 Amps to prevent nuisance tripping and ensure safe operation.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 7 reviews.
- CHCharles H.Verified BuyerReviewingSquare D QOM100VH - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/28/25Sq D always makes sense
It fit perfectly in a panel that has a DC at the meter. Now I can wire my Gen circuits.
- MKMONA K.Verified BuyerReviewingSquare D QOM100VH - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/30/25Perfect fit
Perfect fit,quick service! An exact replacement for a 100 amp main breaker. Full power back. AC working again.
- SHSabine H.ReviewingSquare D QOM2150MM - 150A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/22Service
Service
- DRDerrick R.ReviewingSquare D QOM2100VH - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/29/21AWESOME SERVICE AND AVAILABILITY
AWESOME SERVICE. ORDERED AND GOT MY DELIVERY IN ONE DAY! WILL CONTINUE TO USE YOU GUYS IN THE FUTURE!!
- SASamuel A.ReviewingSquare D QOM2200VH - 200A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/6/21Works great as designed
Needed this specific breaker for a drop-in replacement and this was it. I wasn’t disappointed. Superbreakers had it when others didn’t.