Ringwood Electrical Ltd

AIEW Member Electrical Product Catalogue Issue 19 SURGE PROTECTION DEVICES www.surgedevices.co.uk SY12350KA4P Type 1+2+3 Combined Lightning & Surge Arrester fully compliant to BSEN61643-11, BSEN62305 & BS7671 To be used on the main incoming panel of an installation where the building has an external lightning protection system in place or is being fed by over head power lines. • Suitable for all types of installations (TNC-S, TN-S, PME & TT) • Three phase and Neutral device • Pluggable, replacement modules • Remote changeover contact • DIN rail mountable • 50kA 10/30µs • Backup fuse / MCB 63A Surge Protection Devices Type 1, 2 & 3 SY12325KA2P Type 1+2+3 Combined Lightning & Surge Arrester fully compliant to BSEN61643-11, BSEN62305 & BS7671 To be used on the main incoming panel of an installation where the building has an external lightning protection system in place or is being fed by over head power lines • Suitable for all types of installations (TNC-S, TN-S, PME & TT) • Single phase and Neutral device. • Pluggable, replacement modules • Remote changeover contact • DIN rail mountable • 25kA 10/30µs • Backup fuse / MCB 63A Lightning & Surge Protection An Introduction Lightning and Surge Protection for electronic systems to the new* British and European standard BSEN62305-4: Surge Protection Devices Ltd offer the complete solution to protect vital systems from damage. Recently introduced standards put equal importance on protecting the electrical installation and electrical equipment as to the building itself. Modern micro electronic components are very sensitive to overvoltages and because many systems are networked they rely on each other for the system to operate. If one part of the system gets damaged due to lightning or surges, the whole system won’t operate. The consequential losses suffered during such events i.e. downtime and lost production, can be very high. Ask your wholesaler if you are not sure which product you require or visit our website for a helpful product selector chart. * New standard BSEN62305-4 1st September 2008 and 18th Edition Wiring Regulations effective 1st January 2019. BSEN62305-4 Standard Explained This standard replaced BS6651 on 1st September 2008, and it is now mandatory to fit a lightning current arrester on main incoming panels which are situated in buildings with external lightning conductors or fed by an overhead line. This type of arrester is designated as a Type 1, we recommend a combined Type 1+2+3 arrester as this gives additional surge protection for no added cost. The minimum discharge capability for a Type 1 arrester has to be 50kA 10/350µs. Panels or sub-distribution boards feeding external circuits such as car park lightning, CCTV etc. should also have a combined Type 1+2+3 arrester fitted as standard. For panels and sub distribution boards in buildings without external lightning conductors and fed by underground cables a Type 2 surge arrester is sufficient. Sub-distribution boards or local control panels more than 10 metres from the main incomer and not feeding external circuits, a Type 2 surge arrester can be used. Final sub-circuits and sensitive electronic equipment eg. Fire/ Burglar alarm panels and PLC’s which are fitted more than 10 metres from the last surge arrester should have a Type 3 surge arrester fitted at the panel or equipment to be protected.

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