The Siemens 6ES7132-4HB50-0AB0 is a SIMATIC DP ET 200S electronics module providing two relay digital outputs (change-over contacts) rated at 5 A for both 24 V–48 V DC and 24 V–230 V AC loads. It draws power from the backplane bus at 24 V DC, so no separate load supply is needed for the relay coil. At just 15 mm wide and 52 mm deep, this module fits tightly into a crowded ET 200S terminal strip — useful when you're packing relay outputs into a small panel footprint. The 5 A continuous thermal current per channel handles moderate loads like contactor coils, small motors, or indicator lamps, but note there is no built-in short-circuit protection, so external fusing or a miniature circuit breaker is expected on each output circuit. The module supports substitute-value output on CPU stop — you can configure it to either hold the last value or force a 0/1 state, which is helpful for fail-safe plant behavior. It also includes reverse-polarity protection and galvanic isolation between channels and the backplane bus.
Integration Notes
This module occupies one ET 200S terminal slot (15 mm) and connects via the backplane bus. The relay outputs are change-over contacts — verify your wiring matches the form-C configuration. Maximum unshielded cable length is 600 m; shielded runs can go to 1000 m. Switching frequency is limited to 2 Hz on resistive or lamp loads, and 0.5 Hz on inductive loads — fine for on/off control, not for high-speed cycling. No diagnostics function is built in, so fault detection relies on the external circuit or a higher-level diagnostic block. The module does provide a green status LED per channel for quick visual check.