This is a 4 poles tap off unit with fuse holders for Canalis KN busbar trunking with plug-in outlets. It is used for rapid connection of loads or secondary lines in compliance with installation standards IEC 60364 and regulations concerning TT, TNS and TNC earthing systems. The rated operational current is 20A. The rated operational voltage is from 230VAC to 500VAC 50/60Hz depending on protective device. It is be equipped with fuse holders for BS 88A1 fuse type (fuses not supplied). The tap-off unit polarity is 3L+N+PE or 3L + PE, disconnection by drawing out. Tap-off unit cover can be lead sealed to prevent circuit breaker switching by unauthorised persons. It is suitable for TT, TN-S and TN-C earthing system. The colour is white RAL 9001. Cable clamp is supplied. It provides IP55 protection degree conforming to EN/IEC 60529. It provides IK08 mechanical impact degree conforming to EN/IEC 62262. It is compliant with IEC 61439-1 and IEC 61439-6. It is compliant with Schneider Electric Environmental Data Program (RoHS, REACh, Product Environmental Profile, End of Life Instructions).