Federal Pacific 3P15 NA315 - 15A 3 Pole Molded Case Circuit Breaker
- 15A
- 3 Pole
- Plug-On
Quantity
Federal Pacific NA315 - 15A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Restoring older commercial and industrial electrical systems requires precise components, and this 15-amp Federal Pacific unit delivers exactly that. It mounts into classic Stab-Lok panelboards without requiring any aftermarket adapters or modifications. Serving as a reliable substitute for the UBIF315N, this three-pole thermal-magnetic breaker provides standard 10kAIC protection at 240VAC. The common trip mechanism ensures all phases disconnect simultaneously during an overcurrent event.Specifications
| Brand | Federal Pacific |
|---|---|
| Series | NA |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Federal Pacific Stab-Lok Load Centers |
| Wire Gauge | 14-2 AWG (Cu/Al) |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | UL 489, CSA C22.2 No. 5 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Common Trip |
Product FAQs
6 answersWhat enclosures are compatible with the NA315 circuit breaker?
The NA315 is engineered specifically for legacy Federal Pacific Stab-Lok load centers and panelboards. It features a proprietary plug-on design that is not interchangeable with standard 1-inch breakers from other manufacturers.
Are 3P15 and NA315 the same circuit breaker?
Yes, 3P15 and NA315 are alternate catalog numbers used to identify the same 15A, 3-pole Federal Pacific Stab-Lok breaker.
What are the known safety concerns regarding Federal Pacific Stab-Lok panels?
Legacy FPE Stab-Lok equipment has a documented history of failing to trip under fault conditions and developing loose busbar connections, which can lead to arcing and fire risks. Many electrical inspectors and insurance carriers require complete panel replacement rather than installing replacement breakers.
How is the NA315 breaker installed into the panel?
It uses the Federal Pacific Stab-Lok plug-in connection, which requires aligning the breaker clips with the panel busbar tabs and pushing firmly to seat it. Due to the known safety issues with these legacy panels, installation should only be performed by a licensed electrician after a thorough safety evaluation of the existing busbar.
What applications typically require a 15A, 3-pole Stab-Lok breaker?
A 3-pole, 15A breaker in the Stab-Lok format is generally used in older commercial or light industrial settings to protect small 3-phase motors, HVAC equipment, or dedicated 240V machinery.
Are there aftermarket alternatives to the original Federal Pacific NA315?
While companies like Connecticut Electric manufacture aftermarket replacement breakers for FPE Stab-Lok panels, their product lines primarily focus on 1-pole and 2-pole residential breakers. Finding a direct 3-pole aftermarket equivalent for the NA315 is uncommon, making original replacements the standard option when a full panel upgrade is not immediately feasible.
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