M12 Protective Cap with Retention Strap
The HARTING 21410000001 is a protective cap for M12 circular connectors fitted with a male insert. It covers the mating face to shield the contacts from dust, moisture, and physical impact when the connector is unmated. The cap includes a strap with ring, so it stays tethered to the cable or panel — no loose parts to lose at the installation site.
Fit and Panel Use
This cap is specified for use with M12 connectors that carry a male insert — the threaded shell matches the standard M12 coupling nut. The strap ring lets you fasten it to a cable gland or panel stud, keeping the cap within arm's reach.
Cross-Shop: 21410000001 vs 21010000003
Both caps share the M12 shell size, black colour, and active lifecycle status. The 21410000001 carries a strap with ring; the 21010000003 is a plain sealing cap without a tether and is packaged in a bag rather than bulk. If your assembly requires a captive cover that stays attached to the cable or panel during unmating, the 21410000001 with its integrated strap is the intended pick.