Auxillary Contact Blocks Used with contactors or control relays. Current rating 10A I TH . AC contactors acceptance: 4 to 18.5kW; one front and one side mounting module 22 to 45kW; one front and two side mounting modules 59 to 80kW; one front and one side mounting module Tesys D side mount auxiliary contacts (662-6248, 744-6983, 400-1467, 400-1473) are not compatible with Tesys D DC Contactors