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Square D QHB215 Miniature Circuit Breaker
- 15A
- 2 Pole
- Bolt-On
Square D
QHB215
Miniature Circuit Breaker
Brand
Square D
SKU
QHB215
Quantity
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Square D QHB215 - 15A 2 Pole Miniature Circuit Breaker
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Quantity
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Description
Designed for 240V commercial systems, the Square D QHB215 is a two-pole, 15-amp miniature circuit breaker. It provides robust thermal-magnetic protection with a common trip mechanism to ensure simultaneous disconnection of both poles during a fault. This breaker bolts securely into Square D NQ panelboards, ensuring a stable connection for industrial applications. Rated at 65 kAIC, it handles high fault currents and features a Visi-Trip indicator for rapid identification of tripped circuits.Specifications
| Brand | Square D |
|---|---|
| Series | QHB |
| Amperage | 15A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120/240VAC |
| Frame Type | QOB |
|---|---|
| Terminal Type | Pressure Plate |
| For Use With | NQ Panelboards |
| Wire Gauge | 14-8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator, Common Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersWhich Square D panelboards accept the QHB215 circuit breaker?
The QHB215 is designed for installation in current Square D NQ panelboards and legacy NQOD panelboards. It is not UL-approved for older NQOB interiors, which were not tested for QHB or QOB-VH series breakers.
Can the QHB215 be used as a replacement for a standard QOB215?
Yes, the QHB215 shares the same physical dimensions and bolt-on mounting as the standard QOB215. It serves as a direct replacement that provides a higher interrupting capacity (65kAIC compared to the standard 10kAIC) for systems requiring elevated fault protection.
Why would a panel require a QHB215 instead of a standard QOB breaker?
The QHB215 features a 65kAIC interrupting rating at 120/240VAC, which is significantly higher than the 10kAIC rating of a standard QOB breaker. It is required in commercial or industrial facilities where the available fault current exceeds 10,000 amps.
Can I install the QHB215 in a standard QO load center?
No. While it is part of the QO family, the QHB215 is a bolt-on breaker designed specifically for commercial panelboards. Standard QO load centers require plug-on breakers and do not have the threaded bus connections needed for bolt-on installation.
Does the QHB215 require a separate mounting hardware kit?
No additional hardware kit is typically required for standard installation. The QHB215 features a built-in bolt-on mounting mechanism that secures directly to the bus bar of compatible NQ and NQOD panelboards.
How can I tell if the QHB215 has tripped?
The QHB215 features Square D's Visi-Trip indicator. When the breaker trips due to an overload or short circuit, the handle snaps to a center position and a highly visible red indicator appears in a window on the breaker face, allowing for quick identification of the faulted circuit.
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