Blue Sea 7139 187-Ser. Circuit Br. Surf. Mount 50A COCKPIT AND DECK Micro block sheaves run exclusively

Micro block sheaves run exclusively on ball bearing systems for fast trim and release under any load

Contains: Diaphragms

Cover Satisfies ABYC/USCG requirements for insulation

Drum design allows fewer turns on the winch making tacking and sail handling easier

Blue Sea 7139 187-Ser. Circuit Br. Surf. Mount 50A COCKPIT AND DECK Micro block sheaves run exclusivelyItem# 7139 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