Type 1 + 2 surge arrester MCF-NAR

for electrical installationslow-voltage

The combination arrestor MCF-NAR, type 1+2, is the newest member of the OBO Bettermann team against surge voltages. The name suffix NAR stands for "netzseitiger Anschlussraum" (power-side connection compartment), because the installed spark gap technology qualifies the surge protection device (SPD = Surge Protection Device) for use in the pre-meter area according to VDE-AR-N 4100. The new technical connection rules for low voltages VDE-AR-N 4100 for the connection of customer systems to the low-voltage network require the surge protection device to be placed as close as possible to the supply point. The MCF-NAR is installed in the lower connection compartment, in accordance with the connection rules and thus provides reliable protection against surge voltages directly at the supply point. The installation on the 40 mm busbar system of the meter cabinet means that mounting is particularly simple and time-saving. The right variant for every application With the variants for housing without external lightning protection, for housing and commercial buildings with external lightning protection (lightning protection class 3+4) and for hospitals and data centres (lightning protection class 1+2), OBO can always offer the right solution. For the different areas of application, there is a 3-pin version for TN-C-networks and a 3+NPE version available for TT and TN-S networks.