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Federal Pacific NF631020R NF631020 - 20A 3 Pole Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Federal Pacific
NF631020R
NF631020 - 20A 3 Pole Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NF631020R
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Federal Pacific NF631020 - 20A 3 Pole Molded Case Circuit Breaker
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Description
Operating as a critical safety component in legacy systems, the Federal Pacific NF631020R is a 3-pole, 20A molded case circuit breaker. It provides essential long-time and instantaneous overcurrent protection for commercial facilities running up to 600VAC. Engineered for exact compatibility, this unit bolts securely into Federal Pacific NF panelboards without requiring aftermarket adapters. It features a robust 18kAIC interrupting rating at 480VAC and accommodates padlock attachments.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NF631020R-R |
| Series | NF |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC |
| Frame Type | HF |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific NF Panelboards |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Bell Alarm, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40°C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
7 answersWhich panelboards accept the NF631020R circuit breaker?
This bolt-on breaker is engineered specifically for legacy Federal Pacific NF series panelboards. It will not fit in Federal Pacific Stab-Lok enclosures or other manufacturer panels without specialized retrofitting.
What wire sizes are compatible with the lugs on the NF631020R?
The factory-installed lugs accept wire gauges from 14 AWG up to 1/0 AWG, accommodating standard copper or aluminum conductors sized for 20A commercial circuits.
How does the thermal-magnetic trip unit function on this breaker?
The NF631020R features a fixed thermal-magnetic (LI) trip mechanism. The thermal component provides delayed tripping for sustained overloads, while the magnetic component offers instantaneous tripping to protect against severe short circuits.
Are the NF631020 and NF631020R catalog numbers interchangeable?
Yes, both catalog numbers refer to the same 20A, 3-pole Federal Pacific N-Frame circuit breaker. The NF631020R serves as a direct drop-in replacement for an existing NF631020.
Does the NF631020R include arc fault or ground fault protection?
No, this is a standard thermal-magnetic molded case circuit breaker. It provides essential overload and short-circuit protection but does not feature integrated AFCI or GFCI circuitry.
Can I install this breaker on a DIN rail?
No, the NF631020R is a traditional molded case circuit breaker that requires a bolt-on connection directly to the busbar of a compatible Federal Pacific NF panelboard. It is not designed for DIN rail mounting.
What does the HF frame designation mean for this breaker?
The HF frame type indicates that this breaker belongs to the Federal Pacific N-Frame family. This dictates the physical dimensions and mounting footprint, ensuring it aligns correctly with the busbars in NF series panelboards.
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