Federal Pacific UBIF280NB 80A 2 Pole 120/240V hvac control

Federal Pacific UBIF280NB 80 A two-pole breaker

The Federal Pacific UBIF280NB is a bolt-on circuit breaker rated at 80 A with two poles for 120/240 V AC service. It carries a 10 kA interrupting rating and is ETL listed for use in Federal Pacific NBLP commercial panels. The transparent housing allows visual inspection of the contacts. Dimensions are 3.36 in length, 2.0 in width and 2.55 in depth.

Installers fitting NBLP panels

Electricians maintaining or expanding Federal Pacific NBLP commercial panelboards will find this breaker a direct fit for the UBIF series. It is not intended for panels of other brands or for DC applications, as the device carries no DC voltage rating. Buyers needing a different amperage, pole count or interrupting capacity should select an alternative model.

Sustained 80 A loading

Under continuous 80 A load the breaker operates within its standard thermal curve and the 10 kA AIR rating provides short-circuit protection during fault events. The bolt-on mounting maintains a secure connection to the panel bus, reducing resistance heating over long periods. No DC rating means the device must not be used in DC circuits where sustained arcing could occur.