Heavy Duty Connector (HDC) Housings GWconnect Heavy Duty Connector (HDC) Housings are designed to protect the socket and electrical equipment. The housings can be used with any inserts and coupled to any hood with a single-lever locking system. The housings feature riveted stainless steel pegs that help avoid corrosion, breaking, and loss of IP protection. GWconnect HDC Housings maintain safety for applications including food and beverage, automotive, construction equipment, and many more.