86 Lockout Relay Wiring Diagram. The block close contacts on the 86 are just as important as the trip contacts. Most substation applications are so that someone. 86 lockout relay wiring diagram from userguidewiringadam.z21.web.core.windows.net Most substation applications are so that someone. Cranky108 (electrical) 25 sep 19 18:48. For zones that require lockout, the zone protection […]