Water and vapor proof construction Automatic, worry-free operation Combines switching and circuit breaking in one unit Salt Gear's circuit breaker operates automatically, breaking the circuit on overload safely. The unit contains both a switch and a breaker. The circuit breaker features waterproof and vapor-proof construction, ideal for the marine environment. Electronics sales are final: no returns. Matching breaker to windlass Model: 90080 80 Amp; For Barracuda 600 Model: 90100 100 Amp; For Barracuda 900, Dolphin 1000 Model: 90135 135 Amp; For Mako 1500 Model: 90175 175 Amp; For Mako 2000