It clips directly onto the contactor coil terminals, so no additional wiring or DIN-rail space is needed; the 9 mm depth and 28 mm width keep it flush with the contactor body.
The DC 24...70 V range covers the standard 24 VDC control supply used across most industrial panels, with headroom up to 70 V for systems running higher nominal voltages like 48 VDC. The diode design means it suppresses the reverse-voltage spike when the contactor coil de-energizes — critical for protecting PLC output cards and DC power supplies from inductive kickback. The LED gives a quick visual check that the coil circuit is live, which saves a meter pull during troubleshooting. The clip-on fastening method and any mounting position mean it snaps onto the contactor regardless of orientation — no extra brackets or screws.
It clips onto the coil terminals of contactors like the 3RT2015 or 3RT2016 series, and onto contactor relays like the 3RH6140 or 3RH6131. No panel space consumed beyond the contactor itself; the suppressor sits on top of the coil terminals.