KM1+2-25-4+0 SC

25kA Type 1 & 2 lightning current and surge arrester
High performance four-pole Type 1+2 surge arrester. Use in TN-S and TN-C-S system main distribution boards on the boundary of LPZ0 and LPZ1 and sub-distribution boards on the boundary of LPZ1 and LPZ2 (if >100m away from the MDB).

Suitable for houses, commercial and industrial buildings.

 

 

Category: Part: KM1+2-25-4+0-SC
Order number
KM1+2-25-4+0 SC
System
Three phase TN-S & TN-C-S/4 pole
Nominal voltageUn
230V AC
Nominal voltageUO
230V/400V AC ± 10%
Maximum operating voltageUc
260V AC
Nominal load current for "V" connectionIL
125A
Lightning impulse current (10/350μs)Iimp
25kA
Nominal discharge current (8/20μs)In
30kA
Maximum discharge current (8/20μs)Imax
60kA
Voltage protection levelUp
1.5kV
Short-circuit current ratingISCCR
50kA
Maximum overcurrent protection
250A gL/gG
Maximum overcurrent protection for "V" connection
125A gL/gG
Response timeta
100ns
Cross-section of connected conductors solid (min - max)
2.5mm² - 50mm²
Cross-section of connected conductors stranded (min - max)
2.5mm² - 35mm²
Fault indication
Red indication field
Remote indication
Potential-free change-over contact
Remote indication contacts
250V/0.5A AC, 250V/0.1A DC
Cross-section of remote indication conductors
1.5mm²
Degree of protection
IP20
Range of operating temperatures (min - max)
-40°C - +80°C
Mounting
DIN rail 35mm
According to standard
EN 61643-11:2012, IEC 61643-11:2011 / T1, T2
Weight
1300g (nett), 1365g (gross)
LPL I + II
SYSTEM:THREE PHASE TN-S
MDB:BOUNDARY of LPZ0 & LPZ1
SDB:BOUNDARY of LPZ1 & LPZ2 (if >100m away from MDB)

Surge Protection Device features

  • High performance lightning current arrester
  • No follow-through current
  • No leakage current
  • Coordinated range (install in close proximity to each other)

BS:EN 62305 (lightning protection) and EN 61643-11 (surge protection devices).

CLICK THE IMAGE BELOW TO DOWNLOAD INSTALLATION GUIDE PDF

C14903 SPD Installation Guide

Spare modules are available

DESCRIPTION
ORDER NUMBER
Spare Module L-N (L-PE)
KM1+2-25

Replace when fault indication indicator turns from green to red