Allen-Bradley 193-EIMD AC Input Interface Module

Allen-Bradley 193-EIMD AC Input Interface Module is a four-channel input accessory for E3 and E3 Plus solid-state overload relays, designed to accept 110/120 V AC control signals at 50/60 Hz. It provides IN 1 through IN 4 inputs and common AC return terminals (AC COM) to simplify wiring for line-level control circuits, enabling straightforward retrofit of existing AC start/stop signals into the overload relay network. Typical applications include motor-protection schemes on conveyors, packaging lines, and broader manufacturing automation where 110/120 VAC signals drive overload relays. The 193-EIMD is intended to work with the E3/E3 Plus family to convert field AC signals into the interface required by these relays, helping maintain reliable protection while accommodating legacy control wiring. This Bulletin-described module is specifically optimized for 110/120 V AC input, 50/60 Hz operation, and is used to retrofit overload relays without introducing DC conversion or additional signal conditioning.