CA4-04MK is a 4-pole front mounted auxiliary contact block equipped with Push-In Spring terminals. CA4-..M version offers terminal assortment matching the marking of 3-pole AF(C)09..16(Z)(B)-30-10 contactors. CA4-04MK is available with 4 N.C. instantaneous contacts for standard industrial environments. With the Push-in Spring terminals, one push is all you need for a faster than ever installation, an easier than ever wiring and a reliable as ever connection.