Carlo Gavazzi DMB51 Multifunction Timer with 7 knob-selectable functions and 7 knob-selectable time ranges within 0.1s and 100 hours. It is suitable for mounting on DIN rail. Housing 17.5mm wide for SPDT version and 35.5mm for DPDT version, suitable both for back and front panel mounting. The time period begins as soon as the trigger contact is closed. At the end of the set delay time the relay operates and does not release until the trigger contact is closed again or the power supply is disconnected. If the trigger contact is closed before the end of the delay time, the device resets and a new time period starts. The relay operates and the time period begins as soon as the trigger contact is closed. The relay releases at the end of this period or when the power supply is disconnected. The relay operates again when the trigger contact is closed again. If the trigger contact is closed before the end of the delay time, the device resets and a new time period starts.