Connection terminals K, for AL and CU, one side round and the other side flat, rated operating current Ie=250 A, 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=1x35-150 or 2x16-70 or aluminum sector cable single-wire=1x50-120 or 2x35-50. Other side: Cu-band 1x(4x16x0.8) to 2x(6x16x0.8) or Cu-rail=18x4mm, notes: conversion kits from band connection to cable connection available separately, terminal covers available separately,