The GS1AV2 is a fuse cover interlock kit for the TeSys GS range of IEC disconnect switches. It supports 3- or 4-pole configurations and accepts DIN/NFC-style fuses sized 22 x 58 mm 00, covering switch rated currents of 100, 125, and 160 A.
The 100–160 A current range covers the common TeSys GS disconnect frame sizes. The interlock is a locking accessory that prevents opening the fuse cover while the switch is in the ON position — a key safety interlock for LOTO (lockout/tagout) compliance on a panel. The 22 x 58 mm 00 fuse size is a standard DIN/NFC form factor; verify your existing fuse base matches before sourcing.