Bussmann Shortstop Circuit Breaker, Type 1, 50 Amp

MANUFACTURER:	Eaton’s Bussmann
MANUFACTURER ITEM #:	121A50-00M

DESCRIPTION:    Single Pole Thermal Type Breakers

APPLICATIONS:    Battery chargers, trucks, buses, RVs, trolling motors, etc.

RATING:    5-50A, 14Vdc; 28Vdc (Series 123, 124, & 125)

INTERRUPT RATING:    Main Circuit Protection: 1.5kA @ 12Vdc (Series 193 w/plastic cover)

BRANCH CIRCUIT PROTECTION: 2.5kA @ 12Vdc (Series 121 & 124 -01 sealed & Series 123 w/plastic cover)

OPERATING TEMPERATURE RATING:    –40°F (–40°C) to 185°F (85°C)

STORAGE TEMPERATURE RATING:    –40°F (–40°C) to 260°F (125°C)

MATERIALS:    Black UL-Rated thermoplastic body (thermoset for Type II body & buttons). Cover is grey thermoplastic or steel-Type l gold, Type ll silver

TERMINATION:    #10-32 thread and quick-connect options available

TORQUE RATING:    24 in-lbs (2.7Ntm) max

MOUNTING TORQUE RATING:     Plastic cover - 15 in-lbs (1.7Ntm); Metal cover - 30 in-lbs (3.4Ntm)

INGRESS PROTECTION RATING:    IP66 On plastic cover version only (except for terminals)

COMPLIANCES:    SAE J553; SAE J1171 (consult factory for ignition protection ratings)