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SLP 275 V/3+1 Three Phase Class C Surge Protection Device

SLP 275 V/3+1 Three Phase Class C Surge Protection Device

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Surge Arresters

SLP-275 V/3+1

SLP-275 V/3S+1

SPD type 2 – surge arrester

Replaceable module, visual fault signaling Combination of 3-pole varistor surge protection and an

encapsulated spark gap connected in the mode 3+1. To be installed in low-voltage distributions at the boundary of LPZ 1 and LPZ 2 zones to protect distributions and equipment against the overvoltage effects induced during a lightning strike and to prevent switching overvoltage. Optional remote status signalling (S).

Technical data

L-N

N-PE

Nominal voltage Un

230 V AC

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Maximum operating voltage Uc

275 V AC

255 V AC

Nominal discharge current (8/20 μs)/pole In

20 kA

20 kA

Maximum discharge current (8/20 μs)/pole Imax

40 kA

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Voltage protection level @ I = 5 kA (8/20 μs) Up

0,9 kV

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Voltage protection level Up

1,2 kV

1,5 kV

Response time ta

25 ns

100 ns

Ability to independently switch off the following current Ifi

no following current

100 A

Short-circuit proof at maximum overcurrent protection

35 kArms

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Maximum overcurrent protection

160 A gL/gG

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Degree of protection

IP 20

IP 20

Range of operating temperatures

– 40 °C … + 80 °C

– 40 °C … + 80 °C

Mounting on

DIN rail 35 mm

DIN rail 35 mm

Cross-section of connected conductors

Solid min/max

Stranded min/max

 

ISO: 1/50 mm2 ; AWG: 17/1

ISO: 1/35 mm2 ; AWG: 17/2

 

ISO: 1/50 mm2 ; AWG: 17/1

ISO: 1/35 mm2 ; AWG: 17/2

Stripping length of the supply conductor

14 mm

14 mm

Tightening torque

max. 4 Nm

max. 4 Nm

Fault indication

red indication field

no

Remote indication – S design

potential-free change-over contact

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Remote indication contacts

250 V / 0,5 A AC, 250 V / 0,1 A DC

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Cross-section of remote indication conductors

max. 1,5 mm2

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Meets the requirements of standard

EN 61643-11 + A11T2

EN 61643-11 + A11T2

Ordering number

SLP-275 V/3+1

SLP-275 V/3S+1

 

8595090519461

8595090520023