Engineered for commercial applications, the Federal Pacific NEF437020 provides reliable overcurrent protection in a 3-pole configuration. This legacy molded case circuit breaker utilizes fixed thermal-magnetic trip technology. Designed as an exact drop-in solution, it installs into older Federal Pacific NEF panelboards without requiring aftermarket adapters. The bolt-on mounting style ensures a secure connection. Rated for 14kAIC at 480VAC, it is suitable for reverse feed applications.
Specifications
Brand
Federal Pacific
Series
NEF
Part Number
NEF437020-R
Amperage
20A
Voltage
240VAC, 480VAC, 250VDC
Poles
3
Phase
3
AIC Rating
18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC
Mounting Style
Bolt-On
Terminal Type
Lugs
For Use With
Federal Pacific NEF Panelboards
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed Thermal, Fixed Magnetic
Wire Gauge
14-2 AWG
Max Wire
2 AWG
Min Wire
14 AWG
Available Options
Shunt Trip, Auxiliary Switch, Undervoltage Release, Bell Alarm
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