•  TNS Protection - 8595090517221

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

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