The Siemens 3VU2932-4AB4 is an undervoltage release rated for 24V DC, designed to fit the 3VU2.4 and 3VU2.5 motor starter protectors.
Snaps onto the side of the 3VU2.4 or 3VU2.5 base unit without eating extra DIN-rail width — the release shares the same footprint as the protector. Wire it with 24V DC nominal; the coil pulls in at rated voltage and releases on a dip below the hold-in threshold. Terminal torque and wire gauge follow the base unit's specs, so a clean panel layout keeps the control wiring bundled with the protector's own terminals.