Carlo Gavazzi RM1E40AA50 AC Solid State Relay

Carlo Gavazzi RM1E40AA50 is a single‑phase solid‑state relay (SSR) that provides phase‑angle control of AC loads up to 50 A. It supports a 340–460 VAC operating range and switches without zero‑cross detection, enabling precise power regulation for resistive and inductive loads when driven from a 4–20 mA analog control signal. The device carries a nominal load current Ie of 50 A on the AC‑51 path, and it is intended for panel mounting or mounting on a heatsink, making it suitable for industrial automation and machine‑tool environments where durable, long‑life switching is preferred over mechanical relays. As part of the RM1E family, RM1E40AA50 integrates an analog input (4–20 mA) with a single‑pole output to drive a 1‑phase AC circuit, offering a compact, reliable interface between control systems and high‑power loads. This SSR supports typical industrial applications such as controlled heating elements, ovens, pumps, and other AC loads that require proportional power control, and it is compatible with standard industrial control architectures that provide a 4–20 mA signal. The package is designed for panel installation or the use of a heatsink for thermal management in demanding environments, delivering solid‑state performance with reduced wear compared with mechanical relays.