master switch - a switch for controlling the effect of a number of other switches or contractors; eg if the master switch is open, non of the other switches is operative
14.1. Electrical equipment according to Directive 94/55/EC
14.1.1. Protection against overheating of conductors:
14.1.2. Type of circuit breaker:
14.1.3. Type and operation of battery master switch:
14.1.4. Description and location of safety barrier for tachograph: ..