Presetting circle time with 24hrs Up to 96 programs ON/OFF per day Minimum distance time is 30mins By manual SUL181H mechanical timer is suit for water heater, water dispensers, street lamp, staircase lamp, advertising lamp boxes, breed aquatics, irrigate, office power auto control, in anywhere need time control in home or industrial, etc.It can set and program to control ON or OFF of electric appliance in 24 hours or setting 96 programs in one week. It can be programmed to avoid the peak of power, and it can distribute power in time limit to saving energy. This timer adopts an installing structure of modularization DIN rail, it is easy to installation in distribution box, and it has samll size with good shape, time base compnent adopts synch pulse motor to control, therefore it has strong anti-jamming, less power consumption and steady performance.Main functions:1)Presetting circle time with 24hrs2)Up to 96 programs ON/OFF per day3)Minimum distance time is 30mins4)By manual or auto control Technical data1)Rating power voltage: Us=110V, 220V, 380V2)Rating consume: 2.5VA3)Reserve:150hrs4)Switch capacity: 16A/AC250V(COS=1)5)Electrical life: 100000times6)Weight: Approx. 200g7)Dimensions: 53x68x93/110mm