The SIGMA 72AOZ-160TS-TCP is an eight-pin polarized relay from Sigma’s classic 72-series, designed for plug-in octal-base mounting in industrial control panels. It is designed to replace Western Electric WE 255A relays in compatible gear, reflecting its telegraph-style heritage and octal-socket compatibility. The relay supports fast switching and long life in demanding control applications, capable of up to about 500 pulses per second and rated for at least 0.5 billion operations under a 60 mA, 120 VDC inductive load.
