Eaton / Westinghouse HQNP3015 Miniature Circuit Breaker
- 15A
- 3 Pole
- Plug-On
Quantity
Eaton / Westinghouse HQNP3015 - 15A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Description
Restoring reliable power to older commercial facilities, this 15-amp three-pole unit mounts into classic Westinghouse and Eaton Quicklag panelboards. It supports Type P and PL enclosures perfectly, ensuring maintenance teams can complete repairs quickly. This specific configuration serves as the original counterpart to the modern HQP3015 substitute. Operating at 240VAC with a 10kAIC interrupting capacity, the thermal-magnetic device includes common trip functionality and HACR ratings.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | HQNP3015-R |
| Series | HQNP |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Westinghouse/Eaton Quicklag Panelboards (Type P, PL) |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 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 |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Product FAQs
9 answersWhich panelboards accept the HQNP3015 breaker?
This breaker is specifically designed to fit legacy Westinghouse and Eaton Cutler-Hammer Quicklag Type P and PL panelboards. It will not fit standard BR or CH series load centers.
Is there a modern replacement for the discontinued HQNP3015?
Yes, the HQNP3015 is cross-referenced to the newer Eaton HQP3015 circuit breaker, which serves as a direct substitute for Type P and PL enclosures.
What does the LI trip function code indicate on this breaker?
The LI designation means the thermal-magnetic trip unit features Long-Time and Instantaneous trip functions. The long-time function protects against sustained overloads, while the instantaneous function trips immediately during a short circuit.
Is this breaker suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires a 15-amp, 3-pole circuit.
Can I use this 3-pole breaker in a single-phase panel?
No, a 3-pole breaker like the HQNP3015 requires a 3-phase electrical system to properly connect to all three bus bars. It cannot be installed in a standard single-phase panelboard.
Can I use a BAB series breaker instead of the HQNP series?
No, BAB series breakers have a different mounting configuration and are designed for different panelboards. You must use an HQNP or HQP series breaker for Type P and PL enclosures.
Does this breaker require a separate mounting kit for installation?
No, the HQNP3015 is designed to mount directly into the chassis of compatible Quicklag Type P and PL panelboards without the need for additional mounting hardware.
Does this breaker feature a common trip mechanism?
Yes, this 3-pole breaker features an internal common trip mechanism. If an overload or short circuit occurs on any single phase, all three poles will trip simultaneously to safely disconnect the entire circuit.
Can this 240V breaker be used on a 208Y/120V system?
Yes, a breaker with a maximum rating of 240VAC can safely be applied to a 208Y/120V 3-phase system, which is common in commercial applications.
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