Circuit breaker, 187 Series, 50A, Mfg# 7139, rounded rectangular surface mount, thermal, type III, manual reset/switchable, won't reset W/short, 5000 amp (12V) interrupt, 48 VDC max. Body: 3.44"H x 2.32"W x 1.8"D; 5/16"-18 s...

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Circuit breaker, 187 Series, 50A, Mfg# 7139, rounded rectangular surface mount, thermal, type III, manual reset/switchable, won't reset W/short, 5000 amp (12V) interrupt, 48 VDC max. Body: 3.44"H x 2.32"W x 1.8"D; 5/16"-18 stud.

  • Combines switching and circuit protection into a single device with clear, single-lever operation
  • "Trip Free" design prevents holding the switch "ON" during fault conditions for enhanced safety
  • Fully waterproof construction with recessed mounting holes for a clean, streamlined appearance
  • Ample space around terminal studs accommodates heavy-gauge wire lugs; robust 5/16 M8 terminals provide secure, high-torque connections
  • Ignition-protected for safe installation aboard gasoline-powered boats, meeting SAE J1171 external ignition protection standards

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