Up for sale is a FPE (STAB-LOK) TYPE NB 20 AMP, 1 POLE, 120 VAC BOLT-ON CIRCUIT BREAKER (FPE NB120, FPE NB20, FPE NB111020, 120/240V, 40ºC, CU/AL) ~ please feel free to email your questions or requests for more information.