Interlock, Mechanical

The HUBBELL Watertight Mechanical Interlock is a fused, pin and sleeve device that integrates a disconnect switch with a pin and sleeve receptacle in a non-metallic enclosure for use in various environments. It includes an interlock mechanism that restricts plug removal when the switch is engaged. The unit features a high-visibility red handle capable of being locked in the OFF position to support lockout/tagout procedures, as well as an enclosure door equipped with locking capability. Its rugged housing rated IP66; NEMA 4X and 12 for watertight performance.

Key Features of the HUBBELL Watertight Mechanical Interlock:

• Electrical Connection: Pin and sleeve configuration rated for 30 A, 480V AC, three-phase service


• Fuse Protection: Integrated Class J fuse provides circuit protection


• Enclosure Rating: Rated IP66; NEMA 4X and 12 for watertight performance


• Operating Temperature Range: -40°C to 75°C


• Cord Size Compatibility: Accepts wire sizes from 12 AWG to 8 AWG


• Plug Detection: Patented Plug-CheckTM mechanism detects presence of compatible plug (5Z941)


• Casing Material: Thermoplastic housing with UV stabilization; gasket made from neoprene


• Contact Material: Brass contacts ensure reliable conductivity


• Mounting Hardware Included: Adjustable mounting feet provided for flexible installation options


• Screw Material: Constructed with 300 stainless steel screws for corrosion resistance


• Standards Compliance: CSA Certified, cULus listed; UL94 flammability rating of 5VA/V-0