- Eaton's Bussmann Series 121B20-A2M-KA Shortstop Circuit Breaker
- Manufacturer: Eaton
- Standard Automotive Type 1
- Automatic reset circuit breakers for many 12V applications
- SAE J1171; SAE J553
Connection Style: #10-32 Threaded Stud
Current Rating: 20A
Housing Material: Metal Housing
Mounting Style: Right Angle Bracket Mount