Recommended to prevent manual reset gas solenoid valves from tripping unexpectedly in the event of micro-cuts. The box keeps the solenoid valve open for a variable time from 300 ms to 1 sec, depending on size. Supply voltage 230 VAC 50Hz. Voltage presence indicator. Protective fuse. Mounted in series before the solenoid valve. Dimensions: 160 x 80 x 57 mm