Product introduction
KW - C40 surge protector (surge protector) used in ac 50 hz / 60 hz, 380 v, TN and TN under - S - C, TN - C - S, TT, IT is power supply system, this product is installed on the 35 mm electric guide shell design, built-in failure from the device, when the surge protector for flow overheating, puncture failure, failure from the device can automatically pulled away from the grid, at the same time, visual warning device to a red from green (normal) (failure). The protection module can be replaced with a working voltage.
Product features
The inside metal shielding module of the patented technology.
The technology of overheat and temperature control.
Module design, installation is convenient, can be changed online.
Small leakage current, quick response time, low.
Warning device, green (normal), red (fault).
Product application and installation location
Installed in LPZOB area and LPZ1 area with LPZ2 area, usually installed in the center of the floor distribution box, computer, telecom equipment room, elevator control, frequency conversion control room equipment, hospital operating room, care unit and is equipped with electronic medical equipment of power distribution cabinet and dispersible cottage (SPD) should be installed in resident distribution box.
Product design and order information: 1, the user should specify the model number and quantity in detail when designing and ordering the product. For example: KW - C40/4-385,8.
Technical parameters

Maximum continuous working voltage (Uc)	275V	320V	385V	420V	440V
Voltage protection level (Up)	<1.0kV	<1.5kV	<1.5kV	<2.0kV	<2.0kV
Nominal discharge current (In)	20kA
Maximum discharge current (Imax)	40kA
The response time	<25 ns
The test on the basis of	GB18802.1、IEC61643-1