1. good in quality; 2. use SMT way; 3. CE, CCC; Voltage: AC220V, 380V; DC24VFunction: Work as timer relay, counter, revolution meter, frequency meter, etc, and replace the DH48S, DH48S-S, DH48, with 18 kinds of delay range.Power failure memory: 10 years.Contact type: 1NO 1NCContact capacity: AC220V 5A (resistance)Size: 48*48*90mmPole Size: 45*45mmMounting Way: Panel Way