Restoring older commercial systems requires exact-fit components like this 80A bolt-on unit. Built for 120/240VAC applications, it provides reliable thermal-magnetic protection for aging infrastructure. It mounts into Federal Pacific NB and NBLP panelboards without requiring aftermarket adapters or modifications. When the original hardware fails, this component serves as a seamless replacement, though modern UBIF280NB substitutes are also available for these 10kA rated circuits.
Specifications
Brand
Federal Pacific
Series
NB
Part Number
NB80
Amperage
80A
Voltage
120/240VAC
Poles
2
Phase
1
AIC Rating
10kA @ 120/240VAC
Mounting Style
Bolt-On
Terminal Type
Lugs
For Use With
Federal Pacific NB Panelboards, NBLP Panelboards
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed Thermal, Fixed Magnetic
Wire Gauge
4-1/0 AWG
Max Wire
1/0 AWG
Min Wire
4 AWG
Available Options
Padlock Attachment
Accessories
Load Side Lugs Included
Standards
CSA C22.2 No. 5, UL 489
Approval
CSA, UL
Temp Rating
40C
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