The Siemens 3RA2832-1DH10 is a SIRIUS function module that provides an adjustable OFF-delay — it holds the contactor closed for a set time after the control signal drops, then releases. The adjustable time range spans 0.05 to 100 s, so you can tune it for anything from a brief post-stop purge to a long unload window. It clips directly onto a 3RT2 contactor (any mounting position), taking up 45 mm width and 74 mm depth on the DIN rail — no extra wiring space needed beyond the contactor footprint. Supply is AC/DC, 90 to 240 V at 50 or 60 Hz, so it works across common control voltages without a separate power supply. The recovery time is 50 ms — meaning after the OFF-delay expires and the output resets, the module is ready for the next cycle in 50 ms. Minimum ON period is 35 ms, which prevents chatter if the control signal is too brief.
Deployment context
This module is designed for panel integration alongside SIRIUS 3RT2 contactors. The clip-on fastening method lets you snap it onto the contactor without tools, saving DIN-rail space and reducing wiring. The compact envelope — 45 mm wide, 38 mm tall, 74 mm deep — fits standard control-panel layouts.