High performance power supply system for tunnel fans 400°C/120 minutes. The TUNNEL 54 series high-performance power supply system is made from fire-resistant, flame-retardant and rodent-proof material and built to ensure continuity of service even under...
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High performance power supply system for tunnel fans 400°C/120 minutes. The TUNNEL 54 series high-performance power supply system is made from fire-resistant, flame-retardant and rodent-proof material and built to ensure continuity of service even under fire conditions. The sockets are equipped with a safety isolator switch with steel mechanical interlock and lockable handle in aluminium with the addition of a position plug. The casing of the isolator switch and the contact holding disks are made of reinforced thermoset resin with high thickness, equipped with excellent stability characteristics of size, non-deformability, resistance to heat and fire, to the effects of weather and chemical agents and to mechanical stress even at low temperatures. The isolator switch contacts are double breakers with pads made of silvernickel on busbars of nickel-plated brass. The control shaft is a monolithic-type busbar that enables direct contemporaneous operation of cam movement without mechanically
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