1、The current limit device also has automatic recovery function, which ensure the safe operation of the circuit. 2、Suitable for the control circuit in AC 50Hz and AC220V, and the power is supplied according to the rated electric power. 3、When the electrical load exceeds the specified range value, the controller automatically cuts off the load power to achieve automatic control. 4、Can be used in the dormitories for industrial and mining and enterprise employees, for construction site, and so on. 5、Comes with a ABS shell and a small size, the Parallel installation with D247 (C45) is very easy to complete. Item Type: Over and Under Voltage Protector Material: ABS Shell Model: SAP-32 Protection Action Current: 5A Protection Action Delay Time: 0.5s. (1.2 times) with inverse time limit. Automatic Reset Time: 30s±5s Protection Action Current Error: ± 2%. Power Consumption: ≤ 1.5W Electric Life: 1 x 10000000 times Installation Method: 35mm rail installation. (Approx. 35mm / 1.4in) 1 x Over and Under Voltage Protector