Square D QOH2110 Miniature Circuit Breaker
- 110A
- 2 Pole
- Plug-On
Quantity
Square D QOH2110 - 110A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Engineered for high-fault environments, the 110-amp QOH series component provides robust thermal-magnetic protection with a 42kAIC rating. It serves as a reliable main or heavy branch disconnect for demanding residential and commercial applications. This unit mounts into standard Square D QO load centers, NQ panelboards, and Speed-D switchboards. Featuring the signature Visi-Trip indicator, it allows users to quickly identify tripped circuits among multiple installed devices.Specifications
| Brand | Square D |
|---|---|
| Part Number | QOH2110 |
| Series | QOH |
| Amperage | 110A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 42kA @ 120/240VAC |
| Frame Type | QO |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | NQ Panelboards, NQOD Panelboards, QO Load Centers, Speed-D Switchboards |
| Wire Gauge | 4 AWG-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Visi-Trip Indicator |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, High Interrupting Capacity, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break, RoHS Compliant |
Product FAQs
7 answersWhat panels accept the QOH2110?
The QOH2110 is compatible with Square D QO load centers, NQ panelboards, NQOD panelboards, and Speed-D switchboards.
What is the difference between the QO2110 and the QOH2110?
The QOH2110 features a higher interrupting rating of 42kAIC at 120/240VAC, whereas the standard QO2110 is rated at 10kAIC. Both share the same physical footprint and plug-on mounting.
How many panel spaces does this breaker require?
As a two-pole breaker in the QO series, it requires two standard 3/4-inch spaces in a compatible load center or panelboard.
Can I install this breaker in a Homeline panel?
No. QO and QOH breakers use a 3/4-inch format and are not interchangeable with Homeline (HOM) breakers, which require a 1-inch format.
Is the QOH2110 HACR rated?
Yes, Square D QO and QOH miniature circuit breakers are HACR rated for use with heating, air conditioning, and refrigeration equipment.
Can this breaker be used as a back-fed main?
Yes, it can be used as a back-fed main breaker in compatible QO load centers, but it requires a separate retaining bracket kit to secure it to the bus bar in accordance with NEC requirements.
Does this breaker include a Visi-Trip indicator?
Yes, like most standard QO and QOH breakers, it features the Visi-Trip indicator, which displays a highly visible red flag when the breaker has tripped.
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