CAT4-11US is a 2-pole side mounted auxiliary contact block with A1 / A2 coil terminal connection on front face, equipped with spring terminals. CAT4-..U version offers terminal assortment matching the marking of 3-pole AF(C)09..16(Z)(B)-30-01 contactors. CAT4-11US is available with 1 N.O. and 1 N.C. instantaneous contacts for standard industrial environments.