Sealed Circular Plug for Harsh-Duty Signal Connections
The Hirose HR30-7P-12S(71) is a 12-position circular plug in the HR30 series, built for environments where moisture and dust would kill a standard connector. It carries an IP67/IP68 rating when mated, meaning it survives immersion in 1 meter of water for 30 minutes (IP67) and continuous submersion beyond 1 meter (IP68). The push-pull coupling locks with a straight pull on the body — no threads to cross or tighten, which speeds up field connections and reconnections. Inside, 12 female sockets accept solder cup termination for 20-24 AWG wire, with gold-plated contacts rated 2A per circuit at 30VAC or 42VDC. An integrated backshell and strain relief are built into the housing, so you don't need a separate cable gland or boot to protect the wire exit.
Where It Goes — Marine, Industrial, Medical
Hirose lists this connector for industrial, marine, and medical applications. The IP67/IP68 sealing suits outdoor sensors, washdown stations, pump controls, and deck equipment. The 2A/30VAC rating keeps it on signal and low-power circuits.
Mating Half and Cable Fit
This plug mates with the HR30 series receptacle — the female-socket counterpart is the HR30-8J-12S(71), a panel-mount jack with the same 12-position layout and gold contacts. The male-pin version of this plug is the HR30-8P-12P(71), which uses the same shell and cable opening. The cable opening accepts jackets from 6.20mm to 7.00mm (0.244" to 0.276"), so it fits common multi-conductor cables like 12-core 22 AWG or 10-core 24 AWG. The solder cup termination is straightforward with a basic iron — no crimp tool needed, which matters if you're re-pinning a harness on site.