Receptacle, Interlock

The HUBBELL Unfused Circuit-Lock® Watertight Mechanical Interlock is a pin and sleeve device rated for use with specified ampacity in environments requiring watertight electrical connections, suitable for indoor and outdoor applications. This unit integrates a disconnect switch with the receptacle, providing a means to visually verify disconnection when the plug is removed and locked out. The interlock mechanism restricts operation of the switch unless the plug is engaged, and restricts removal of the plug until the switch is off. It features a non-metallic thermoplastic housing; housing can be used with metallic conduit; consult installation instructions regarding grounding requirements, compatible with metallic conduit without affecting ground continuity, and supports IEC 60309-2 plugs.

Key Features of the HUBBELL Unfused Circuit-Lock® Watertight Mechanical Interlock:

• Amperage Rating: 30 A


• Voltage Rating: 3 Phase 240V AC (max voltage 600V AC)


• Maximum motor rating: 7-1/2 hp (per manufacturer specifications)


• Circuit Breaker/Fuse Protection: Non-fused design


• Electrical Connection Type: Pin and sleeve with pressure terminal screws


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


• Number of Poles/Wires: 3 poles, 4 wires configuration


• Ingress Protection & Ratings: IP67; NEMA ratings 4X (watertight) & 12 (dust-tight)


• Operating Temperature Range: -40°C to +75°C continuous operation


• Housing Material & Resistance Properties: Thermoplastic construction; UV stabilized; UL94-5VA/V0 flammability rating; impact resistant per UL746C standards


• Grounding Feature: Includes grounding feature as part of its design