TOB1-63H manual changeover switch is suitable Compatible with two-way power supply system with AC 50 HZ/60 HZ, rated operating voltage 240V~400V, rated current from 16A~63A. It can manually switch the power supply to the backup power or generator when a fault occurs in the normal power supply, Compatible with ensuring the reliability and safety of the power supply. TOB1-63H has protection function against overload, undervoltage, short circuit and phase failure, which is particularly suitable Compatible with use in places where power failure is not allowed, such as fire departments, hospitals, marketplaces, high-rise buildings, banks, TV stations and so on. Rated voltage: 230V 50/60Hz Breaking capacity: 6Ka Rated current: 40A Color: White Material: Flame retardant Size: 80 x 78 mm Compatible with package contents: 1 x Circuit breaker Only the above Compatible with package contents, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.