The ETI cylindrical fuse disconnector EFD is constructed in a 22mm x 58mm framework with plastic components resistant to extremely high temperatures. Its drawer guarantees that a fuse link can't touch with the housing as the changing of fuse link restricts direct-contact of parts under voltage, in accordance to IP20 protection class. This unit comprise of a technical indicator type namely, L (LED) with built-in LED diode that blinks after the fuse-link operates and allows low total dissipation through the internal circuit resistance of 2M. In addition, all contact surfaces are silver-plated and can be mounted on standard DIN-rail of 35mm. Moreover, it strictly complies with IEC 60947-1, IEC 60947-3, UL 4248-1, UL 4248-4, UL 4248-8 and UL 486E directives.