The Electronic Eh10 Time Switch Provides Control For Electric Water Heaters With To The Minute Accuracy In Programming And Time Keeping. These Time Switches Can Be Programmed For Repeat Daily Scheduling, 5 Day Work Week Scheduling, Weekend Scheduling Or Individual Day Scheduling. Designed For Industrial, Commercial And Residential Applications Spat 30 Amps 120V 60 Hz Minimum On/Off Time 1 Minute External Load Indicator And Override Switch 3 Year Battery Backup Combination 1/2 3/4 Knockouts Made in: United States Dimensions: 8 X 5.25 X 3.25Brand: Inerratic IncItem Weight: 2.401includes: Unit Instruction Guide