Type 2+3 AC Surge Protective Device SLP20-275/1S+1

Location of Use: Sub-Distribution Boards

Network Systems: TT, TN-S

Mode of Protection: L-N, N-PE

Surge Ratings: I_n = 10kA (8/20 μs)

Open Circuit Voltage: U_oc = 20kV (1.2/50 μs)

IEC/EN Category: Class II+III / Type 2+3

Protective Elements: High Energy MOV and GDT

Housing: Pluggable design

Compliance: IEC 61643-11:2011, EN 61643-11:2012

Main Specification

Model No.	SLP20-275/1S+1
	SPD according to IEC/EN 61643-11	Type 2+3 / Class II+III / Class C+D
	Nominal voltage U_n	230V
	Max. continuous operating voltage U_c	275V
	Nominal discharge current (8/20 μs) (L-N) / (N-PE) I_n	10kA / 10kA
	Maximum discharge current (8/20 μs) (L-N) / (N-PE) I_max	20kA / 20kA
	Open circuit voltage (1.2/50 μs) U_oc	20kV
	Voltage protection level (L-N) / (N-PE) U_p	≤ 1.2kV / ≤ 1.0kV
	Max. backup fuse	63 A gG
	Type of remote signalling contact	yes / changeover contact