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Blue Sea  Bussmann Series 187 Circuit Breaker 50 Amp 7139

Blue Sea Bussmann Series 187 Circuit Breaker 50 Amp 7139

Blue Sea Systems

  • $90.77
    Unit price per 

Only 10 left!


Blue Sea Systems Bussmann Series 187 Circuit Breaker 50 Amp 7139

Surface mount thermal circuit breaker combines switching & circuit protection into one device.


  • Blue Sea 187 series surface mount circuit breaker

  • 50 amps DC rating

  • Bright yellow reset lever for visual identification of open circuit

  • Ideal for main circuit protection of large size battery banks

  • Combines switching and circuit protection into a single device

  • Trip-free design cannot be held ON during fault current condition

  • Not to be used where high inrush currents are expected

  • Type III class – switchable/manual reset

  • 48 volts DC maximum voltage

  • 5000 amps interrupt capacity @ 12 volts DC

  • 3000 amps interrupt capacity @ 24 volts DC

  • 1500 amps interrupt capacity @ 42 volts DC

  • 5/16”-18 terminal studs accepts up to 1/0 AWG heavy duty wire

  • Waterproof for use in areas that may experience water spray

  • Recessed mounting holes for clean appearance

  • #10 (M5) mounting screw size

  • 2.323 in. width x 3.439 in. height x 1.797 in. depth

  • SAE J1171 ignition protected – safe for installation aboard gasoline powered boats

  • CE marked

  • IP66 – protected against ingress of dust and water from heavy seas

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