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MCF-NAR

Product catalog summary

Specifications:
The document outlines the features of surge protection devices designed for power-side connection compartments. These devices are only 50 mm wide and can optionally include remote signalling. They provide Type 1+2 surge protection suitable for mounting on a 40 mm busbar system, supporting the highest lightning protection level (LPL I). The devices are secured with screw fastening to ensure permanent contact with the busbar.

Procedures and Standards:
The surge protection devices are tested according to VDE 0675-6-11 (EN 61643-11) and are suitable for mounting on 40 mm busbars in TN and TT systems. They offer a protection level of ≤1.5 kV to safeguard terminals and can be coordinated with type 3 SPD. The devices support lightning protection equipotential bonding as per VDE 0185-305 (IEC 62305) and have a lightning current discharge capacity of up to 75 kA (10/350) for 3-pole and up to 100 kA (10/350) for 3+NPE configurations. They meet the requirements of VDE 0100-534 (IEC 60364-5-53) and have a follow current interrupt rating up to 50 kA with a maximum backup fuse of 315 A gL/gG.

Recommendations:
The document recommends using the surge protective devices in the main power supply system in front of the meter. It highlights the visual display feature that operates without power consumption. The devices are designed for easy installation with a matching adapter for voltage tapping, tested according to VDE-AR-N 4100.

Product Variants:
The document lists various product variants for different applications, including those without a lightning protection system and those with exposed cable supply. It provides details on the total discharge current (Itotal), maximum fuse ratings, and item numbers for each variant. The products are available for TN-C/3-pin and TT and TN-S/3+NPE systems, with options for potential-free remote signalling (NO/NC).

Installation and Usage:
The surge protective devices are designed for use in the mains-side connection compartment according to VDE-AR-N 4100. They feature cable connections using spring terminals and are secured with only one screw. The package includes two plug sockets for cable termination in the APZ and RfZ, with instructions accessible via QR code.

Catalog excerpts

On the safe side with OBO with surge protection in the power-side connection compartment (NAR) Optionally with remote signalling ■ Solutions up to the highest lightning protection level (LPL I) ■ Type 1+2 surge protection for mounting on 40 mm busbar system ■ Screw fastening secures permanent contact to the busbar

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MCF-NAR1 Combination arrester, type 1+2 ■ Tested according to VDE 0675-6-11 (EN 61643-11) ■ Mounting on 40 mm busbars in TN and TT systems ■ Protection level ≤1.5 kV to protect terminals, coordinated use with type 3 SPD possible ■ Lightning protection equipotential bonding according to ■ Lightning current discharge capacity up to 75 kA (10/350) 3-pole and ■ Fulfils the requirements of VDE 0100-534 (IEC 60364-5-53) ■ Follow current interrupt rating up to 50 kA and max. backup ■ Visual display without power consumption ■ Fulfils the requirements for use in the main power supply system in front...

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Use in the mains-side connection compartment according to VDE-AR-N 4100 The use of the surge protective devices and the optional adapter ideally meet the requirements of VDE-AR-N 4100 for surge protection and the planned voltage tapping at a width of only 50 mm in the mains-side connection compartment. Cable connection using spring terminals Instructions always available via QR code Fastening secured with only one screw Two plug sockets for the termination of the cables in the APZ and RfZ are contained in the scope of delivery. Connection cables are to be created in the correct length and secured...

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OBO Bettermann Holding GmbH & Co.KG Hüingser Ring 52 58710 Menden

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