BW70.18 - Elapsed Time Counter, Single Module Wide. Elapsed Time Counter BW70.18 for DIN rail mounting. Elapsed time counter Counter capacity 99.999 h Alternating current Non-resettable Operation indicator with fast running wheel Flush mount dimensions 45 x 17.5 mm Compact form No terminal cover Screw terminals (pull-up type) Touch proof connections IP50 protection DIN-rail mounting