FUCHSBERG ELECTRIC FBE 553710 - Overvoltage protection type1+2, TT

5-pole leakage-free combined arrester type 1+2 for use in the pre-metering area for 230/400V TT networks (3+1) and TNS networks (4+0), with varistor technology in combination with encapsulated spark gaps filled with inert gas.

Combination arrester for lightning currents type 1+2 for mounting on 40 mm busbar systems is installed in 3-phase network systems according to lightning protection class III and IV by simply snapping it onto the busbar system.

Advantages

• small space requirement
• modular construction
• additional interlocking
• network form: TNC 3+0 / TT 3+1 or TNS 4+0 circuit
• Iimp /Pole = 7,5 kA
• no leakage current / no mains follow current

Important features

• tested according to EN 61643-11:2012,
• with exchangeable plug-in modules and vibration-proof locking device
• for mounting on 40mm busbar systems
• with defect indication in viewing window, without remote signalling contact
• energy coordination according to DIN EN 62305-4

Technical features

• highest continuous voltage L-N/N-PE (Uc): 255 V / 255 V AC
• lightning impulse current (10/350 µs) L-N/N-PE (Iimp): 7.5 kA / 30 kA
• maximum leakage surge current (8/20 µs) L-N/N-PE (Imax): 60 kA / 100 kA
• Protection level (Up): < 1.5 kV
• short-circuit strength (Isccr): 25 kA
• maximum back-up fuse: 160 A gL/gG
• Operating temperature: -40°C ... +80°C

deliver, assemble and connect ready for operation! ...