The Bussmann 187 circuit breakers feature a single lever for switching and manual reset. They are ignition protected and weatherproof (IP 66 rating). Typically used in DC power systems in marine applications (as a main or branch circuit breaker), truck and bus systems, RV systems, add-on protection for accessories, lift gates, etc.

Manual reset circuit breakers will open the circuit on overload and will remain open until the user presses the yellow switch lever. This circuit breaker can also be manually switched off using the yellow lever.

Typically used in DC power systems in marine applications (as a main or branch circuit breaker), truck and bus systems, RV systems, add-on protection for accessories, lift gates, etc.

Thermal circuit breakers provide heavy duty circuit protection for 25 to 200 Amp loads when switching and circuit protection are both required.

  • Combines switching and circuit protection into a single device*
  • Clear, single lever operation
  • "Trip Free" design cannot be held "ON" during fault current condition
  • Waterproof
  • Recessed mounting holes for clean appearance
  • Large Clearance around terminal studs accept heavy gauge wire lugs
  • Robust 5/16 M8 terminals provide high torque connections
  • Large lever with vertical/horizontal orientation provides indication of trip status
  • Ignition protected - Safe for installation aboard gasoline powered boats
  • Meets SAE J1171 external ignition protection requirements
Maximum Voltage 48V DC
Mounting Surface Mount
Circuit Breaker Type Thermally responsive Bi-metal blade
Terminal Stud 5/16" - 18 (M8)
Terminal Stud Torque
75 in-lb (8.47 Nm)
Interrupt Capacity 5000A @ 14VDC / 3000A @ 28VDC / 1500A @ 48VDC
Operating Temperature -40° C to 85° C
Circuit Breaker Class
Type III - switchable/manual reset - Push to Trip
Weight 0.58lb (0.26 kg)

 

SKU 187SM
Brand Bussmann
Shipping Weight 0.2200kg
Shipping Width 0.090m
Shipping Height 0.050m
Shipping Length 0.060m
Shipping Cubic 0.000270000m3

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