General description The Mechanical Timer Switch TB388 is a waterproof and programmable timer designed for reliable control of household appliances. It operates within a voltage range of 100-250V AC and supports a current of up to 20A, making it suitable for various applications including water heaters, lighting, and irrigation systems. Technical specifications Voltage range: 100-250V AC Current: 20A Power consumption: 1W at 220V AC, 2W at 220V AC Heavy load capacity: supports resistive loads up to 20A and incandescent loads up to 10A Timing intervals: programmable in intervals of up to 15 minutes Other information