Designed with a lightweight IP66 rated protective plastic housing and clear mounting holes makes attaching this 15-amp shortstop circuit breaker a snap; simply mount the circuit breaker using the right angle/ perpendicular bracket and attach the wires, and youÃ?????????????????????????????¢??re set. It meets the Society of Automotive Engineers J553 standard and is ideal for protecting power windows, headlights, sunroofs, taillights, door locks as well as a variety of other applications within the automotive industry. This 15-amp automatic/cycling shortstop circuit breaker is also available with a heavy-duty metal plated housing,46315. 


  • 15-amp shortstop cycling/ automatic (Type I) circuit breaker
  • Features a right angle/ perpendicular bracket for easy mounting
  • Designed to cycle continuously during over current and short-circuit conditions until the source of the over current is removed
  • Features (2) 10-32 stud terminals for easy wire attachment
  • Engineered with an IP66 rated protective plastic housing for superior vibration resistance
  • Also available with a heavy-duty metal plated housing
  • SAE Standard J553 compliant
  • Also available in Non-Cycling (Type II) and Manual Reset (Type III) circuit breakers

Technical Specifications 

  • Manufacturer: Cooper Bussmann
  • Manufacturer Part Number: 121B15-A2P-KA
  • Amps: 15
  • Type: Shortstop
  • Reset Method: Type I (Automatic)
  • Mounting Style: Right Angle Bracket
  • Housing Material: Metal
  • Terminal Connection: 10-32 Studs
  • SAE Compliance: J553