Fit at the MDB on 3 phase TN-C systems

KM2-20-3+0 SC

20kA Type 2 surge arrester.

CLICK HERE

Fit at the MDB on single phase TN-C systems

KM2-20-1+0 SC

20kA Type 2 surge arrester.

CLICK HERE

Fit at the MDB on 3 phase TN-S & TN-C-S systems

KM2-20-4+0 SC

20kA Type 2 surge arrester.

CLICK HERE

Fit at the MDB on single phase TN-S & TN-C-S systems

KM2-20-2+0 SC

20kA Type 2 surge arrester.

CLICK HERE

Fit at the MDB on 3 phase TT systems

KM2-20-3+1 SC

20kA Type 2 surge arrester.

CLICK HERE

Fit at the MDB on single phase TT systems

KM2-20-1+1 SC

20kA Type 2 surge arrester.

CLICK HERE

Fit <5m from vital equipment

KM3-10-1+1 SC

10kA Type 3 surge arrester.

CLICK HERE

If a building is fitted with a structural Lightning Protection system, the requirements of BS:EN 62305 take precedence over BS 7671:2018.

If you are familiar with the requirements of BS:EN 62305, and know the Lightning Protection Level (LPL), CLICK HERE.

If in doubt, CONTACT US.

What is the Earthing System?

If you don’t know, CLICK HERE.

You can offer protection in accordance with BS 7671:2018

Fit at the SDB on 3 phase TN-S or TN-C-S systems

KM1+2-12.5-4+0 SC*

12.5kA combined Type 1+2 lightning current and surge arrester.

CLICK HERE

*If the principle concern is internally generated switching transients, change the connection type to CT2 (or 3+1) instead of CT1 (or 4+0)

Fit <5m from vital equipment

KM3-275-A

2kA Type 3 surge protection module.

CLICK HERE