Model number DH48J series Supply voltage 220Vac, 50/60 Hz; Operating mode Up counting, down counting Input Signal Contact,level, sensor (NPN type) Max. counting speed 30 cps Min. counting pulse 15ms No-power memory DH48J-11A: 10 years Control form SPDT Contact rating 5A@250Vac, 7A@24Vdc Mechanical life 1x107 Electrical life 1x105 Power consumption 5W max Setting method Dial switch Indication method 8-segment 4-digital display External dimensions 48x48x97 mm Perforate dimensions 4610x46 10 mm Counting error 1 Reset time 0.05s Power reset 1s Dielectric strength 2000Vac, 50/60Hz for 1min Insulation resistance 100M min. at 500 VDC Termination DH48J, DH48JA: 8 pin; DH48J-11A: 11 pin Mounting Panel, Din rail Matched socket DH48JA,DH48JA: PF083A, DH48J-11A: PF113A Matched sensor NPN type: M8 2mm Sn, M12 4mm Sn, M18 8mm Sn, M18 2m Sn M30 4m Sn Operating temperature -10 to 50 C Operating humidity 30-85% RH max, non-condensing Alias name DH48J series counting relay, counter relay