Blue Sea Systems 30A Circuit Breaker (187 Series)


We used two of these 30A circuit breakers in our solar system. Each one was placed in-line between a set of solar panels and their dedicated solar charge controller, ensuring that any electrical anomalies would bee interrupted before reaching the controller… and giving us the ability to turn off the output from the panels if we needed to work on equipment/wiring downstream from the panels.

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SKU: B000KOVBXQ Category:


Circuit breaker, 187 Series, 30A, Mfg# 7136, 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.


  • 30A DC Surface Mount circuit breaker combines switching and circuit protection into a single device
  • “Trip Free” design cannot be held “ON” during fault current condition
  • Rated IP66 Waterproof
  • Max voltage: 48V DC, Interrupt capacity: 5000A @12V, 3000A @ 24V, 1500A @ 42V
  • Terminal Size: 5/16″-18