【With Visible Window】: The surge protective device has visible window with red and green indicators for easy viewing of power on and off. 【DIN Rail Mounting】: The surge protector adopts DIN rail mounting method, with modular design, is stable and reliable. 【Made of PC Material】: The protector shell is made of PC material, with high strength and flame retardant, safer to operate. 【Convenient Wiring】: Adopt anti cracking buckle design, easy and convenient wiring, very suitable for home use. 【Detachable Design】: The surge protector can be disassembled and assembled, has stable performance and is easy to plug and unplug.Manufacturer: BigKing Package Quantity: 1 Part Number: BigKingq1o4d0tvce-12 Size: Imax:40kA Specification: Item Type: Surge Protective Device Product Material: PC Product Model: RMU1-C60 Maximum Voltage: AC 420V Voltage Protection Level: 2.0kV Level: 1P Mounting Method: Din rail mounting Maximum Discharge Current20kA40kA60kANominal Discharge Current10kA20kA30kA Package List:4 x Surge Protective Device Note:For electrical maintenance and installation, be sure to ensure that the operator has electrical work qualifications, and take necessary protective measures such as power off and insulation.