Information about Fuse switch STI 3P+N 400V
This Acti9 STI isolable fuse holder is a low voltage fuse disconnect. It is used for tertiary and industrial applications that require a high breaking capacity. It has a 3P+N pole, up to a rated current of 10A, and a gG or aM fuse curve with a fuse cartridge type of 8.5mm x 31.5mm. It can be mounted on a DIN rail for modular installation. The general-purpose fuse (gG fuse) provides protection against overload and short circuit. The aM fuse for motor application provides protection against short circuits (protection for loads with high peak current). It has an IP20 protection rating on its terminals, becoming IP40 once in a modular cabinet. A pressure marker is visible on the front face or on the downstream terminal to identify the presence of the fuse. The optional 230V neon indicator light indicates that the fuse is blown (off during normal operation and lights up red after the fuse blows). The device is delivered with a captive fuse holder and an additional cover for a spare fuse. Its lever can also be locked.