Feature: 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. Specification: Item Type: Over and Under Voltage Protector Material: ABS Shell Model: SAP-32 Working Voltage: AC230V 50Hz. 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). Package List: 1 x Over and Under Voltage Protector Note: 1. Before turning on the power, please carefully check whether the wiring is correct, whether the load matches the product's current protection value, and whether the wiring screws have been tightened, otherwise the product will be damaged. 2. After the product is connected to the power supply, please do not touch the live parts to avoid electric shock. 3. Since the product has no short‑circuit protection function, when there is a short‑circuit at the input or load end of the product, the load‑limiting protection function will not be activated and the product will be damaged. 4. Because the product has an automatic reset function, after the product is protected and activated, the load (electrical appliances) should be removed immediately, and the circuit should be checked, otherwise the product will frequently switch on the load and disconnect the load, and eventually, the product or the power line will be burned out due to the frequent and long time switching on and off of the overload. 5. The intelligent over‑current protector can adjust the current by pressing the set key within 5 seconds after power‑on.