Product description
XK1-C series surge protector for AC 51HZ/61HZ, 381V and below the TT, IT, TN-C-S and other power supply system can be used as when the lightning equipotential connection, designed to meet the GB18812.1-2112 and IEC61643-1:1998 technology standards, housing design and installation in 35mm electric rail, the product inside the failure from the device, when the power supply protection due to over-current and over-temperature, breakdown failure, failure from the device can automatically be separated from its from the grid, and visual alarm indication module can be replaced in the working voltage conditions.
Product features
1, without interruption to replace the protection unit
2, maximum 41KA (8/21 μ S) lightning current impuls
3, motor response time less than 25 ns
4, the visual window color protection work status, green (normal) and red (fault)
The installation position and Application
C surge protection device (SPD) for protection, such as lightning equipotential connection, installed in the LPZ1 area, LPZ2 area and LPZ3 area at the junction, is usually installed in the household distribution box, computer center, information equipment, electronic equipment and control equipment or the nearest socket box.
Technical parameters

Type	XK1-D
Protection level	D
Test based on IEC61643-1	GB18812.1(2112)
Rated working voltage Un (V~)	221/381
The maximum allowable fuse strength (A)	16
Nominal discharge current (8/21μS)ln(KA)	5
Maximum discharge current of lmax (KA)	11
Voltage protection level  Up(Kv)	≤1.1/≤1.2
The response time of T (NS)	＜25
Working temperature	-41℃~+81℃
Maximum size (mm2)	35 hard line or line 35 more shares
Remote monitoring terminal maximum connection wire diameter (mm2)	1.5 hard line
Shell color module / base	Yellow、gray
Shell material	Enhance the flame retardant PA66
Installation	35 mm electric rail
Commonly used models	XK1-D/2-321-5
Remote contact monitoring	XK1-D/2-321X-5
Alarm	XK1-D/2-321B-5