SPD type 2 – surge arrester 4-pole arrester for 3-phase TNS networks 4-pole varistor surge protection to

be installed in low-voltage distributions at the boundary of LPZ 1 and LPZ 2 zones to protect the distributions

and equipment against overvoltage effects induced during a lightning strike and to prevent switching

overvoltage. Optional remote status signalling (S).

Technical Data

Nominal voltage	Un	230 V AC
Maximum operating voltage	Uc	275 V AC / 350 V DC
Nominal discharge current (8/20 μs)/pole	In	20 kA
Maximum discharge current (8/20 μs)/pole	Imax	40 kA
Voltage protection level @ I = 5 kA (8/20 μs)	Up	0,9 kV
Voltage protection level	Up	1,2 kV
Response time	ta	25 ns
Short-circuit proof at maximum overcurrent protection		50 kArms
Maximum overcurrent protection		160 A gL/gG
Degree of protection		IP 20
Range of operating temperatures		– 40 °C … + 80 °C
Mounting on DIN rail		35 mm
Cross-section of connected conductors Solid min/max Stranded min/max		ISO: 1/35 mm2 ; AWG: 17/2 ISO: 1/25 mm2 ; AWG: 17/4
Fault indication		red indication field
Remote indication– S design		potential-free change-over contact
Remote indication contacts		250 V / 0,5 A AC, 250 V / 0,1 A DC
Cross-section of remote indication conductors		max. 1,5 mm2
Meets the requirements of standard		IEC 61643-11 ed. 1.0 EN 61643-11:2012