Feature: 1. Over under voltage protector supports over‑voltage protection, under‑voltage protection and voltage display, and also supports voltage measurement. 2. Both overvoltage and undervoltage protection values and recovery values are adjustable, and overvoltage and undervoltage protection action time is also adjustable 3. Voltage protector supports reset mode selection, fault query and factory reset function, which is very convenient in daily life 4. The over under voltage monitoring device is made of plastic material, which is hard and corrosion‑resistant and has a long service life 5. Voltage protector is suitable for power distribution cabinets, distribution boxes, electric control boxes, power electronic devices, power supplies for telecommunication equipment rooms and so on Specification: Item Type: Over-Voltage and Under-Voltage Protector Material: ABS Shell Model: SVP-915C Rated Voltage: 230VAC 50/60Hz Rated Current: 1-80A (Default 80A) Over-Voltage Protection Value Range: 221V-300V-OFF Adjustable (Default 280V) Over-Voltage Recovery Voltage Adjustment Range: 221V-299V(Default Value 250V) Over-Voltage Protection Action Time: 0.1 Seconds -10 Seconds (Default Value is 0.1 Seconds) Under-Voltage Protection Value Range: 150V-219V-OFF Adjustable (Default 160V) Under-Voltage Recovery Voltage Adjustment Range: 151V-219V (Default Value 180V) Under-Voltage Protection Action Time: 0.1 Seconds -10 Seconds (Default Value 0.2 Seconds) Over Current Adjustment Range: 1-63A(Default 63A) Over current Action Range: 1 Second -255 Seconds (Default Value is 30 Seconds) Failure Recovery Delay Time: 2 Seconds -512 Seconds (Default Value is 60 Seconds) Turn-On Time After Power-On: 2 Seconds -255 Seconds (Default Value is 2 Seconds) Power Consumption: ≤2W Electrical Machinery Life: ≥4000 Times Size: Approx. 81 x 36 x 60mm / 3.1 x 1.4 x 2.3in Installation Method: DIN Rail Working Environment: Temperature +40℃~-25℃ Humidity <90% Altitude: No More Than 2000m. Package List: 1 x Over Under Voltage Protector1 x English User Manual