Carlo Gavazzi RM1A48D50S98 Solid State Relays

Carlo Gavazzi RM1A48D50 is a 1‑pole, panel‑mount solid‑state relay (SSR) designed to switch AC mains loads in automation panels. It uses zero‑cross switching for smooth energization of both resistive and inductive loads and accepts a DC control signal in the 4–32 V range to drive up to 50 A of load current, with a 42–530 VAC output range and a peak off‑state voltage up to 1200 Vp. The device provides an AC‑51 rating of 50 A and an AC‑53a rating of 15 A, and includes built‑in overvoltage protection and a varistor for surge suppression. Power connections are made via a screw with captive clamp for secure panel mounting. This RM1A48D50 is part of Carlo Gavazzi’s RM1 single‑phase SSR family, suitable for controlling heating elements, pumps, motors, and other AC loads in industrial automation where zero‑cross switching helps minimize EMI and wear on switching elements. Its compact footprint measures roughly 44.8 × 58.2 × 28.8 mm, enabling straightforward integration into standard control panels while delivering reliable, long‑life solid‑state switching without mechanical wear.