Connection terminals K, for AL and CU, one side round and the other side flat, rated operating current Ie=800 A, number of poles=4, connection cross-sections: copper round cable multi-wire, sector cable multi-wire, round cable single-wire, sector cable single-wire and aluminum round cable single-wire, sector cable single-wire=2x120-240 or 3x50-185qmm or aluminum sector cable single-wire=2x150-185 or 3x95-150qmm. Other side: Cu-band 2x(11x21x1) or Cu-rail=50x20mm, notes: conversion kits from band connection to cable connection available separately, terminal covers available separately,