The Stop Motion Units manufactured by us are timing devices used for special applications in electrical braking of motors. In these units, two different timers are fixed in one box, and both timers have different time settings and relay outputs. To set the time of individual timers, pots present on the front facia are used, and the timers commence their operations when the timers' power is switched off. This product is the ideal substitute for K4 timers of RSB-851.