IMPA: 792771

Marine Watertight Receptacle with Interlock Switch

This marine-grade watertight receptacle with interlock switch is engineered for reliable electrical connections in the toughest shipboard environments. The integral interlock mechanism ensures that power is only supplied when the plug is fully and correctly inserted, preventing accidental disconnection and minimizing the risk of arcing or electric shock. Ideal for shore power inlets, deck equipment, and engine room installations, this receptacle is a robust solution for demanding commercial and offshore vessels.

Constructed from corrosion-resistant polycarbonate with stainless steel hardware, this receptacle provides a high IP66 rating, offering complete protection against water jets and dust ingress. The interlocked switch follows a break-before-make sequence, providing an additional layer of safety for crew and equipment. With voltage and current ratings suitable for most marine electrical systems, and compliance with international standards, this IMPA 792771 receptacle is a dependable choice for any fleet.

Key Features

Technical Specifications

SpecificationDetail
Product TypeWatertight Receptacle with Interlock Switch
IMPA Code792771
IP RatingIP66
Voltage Rating380-415V AC (other ratings available)
Current Rating32A (16A options available)
Frequency50/60 Hz
Number of Poles3P+N+E
Housing MaterialMarine-grade polycarbonate
Metal PartsStainless steel 316L
Contact MaterialSilver-plated copper
Cable EntryPG/metric gland
Mounting TypeSurface mount
Operating Temperature-40°C to +70°C
StandardsIEC 60309 / ISO 8846

Frequently Asked Questions

What is a watertight receptacle with interlock switch used for?

It provides a safe and weatherproof electrical connection on ships and offshore installations. The interlock mechanism prevents the plug from being withdrawn while the circuit is live, and prevents energization unless the plug is fully inserted, reducing hazards.

What IP rating should a marine receptacle have?

For deck or exterior use, an IP66 rating or higher is recommended to protect against powerful water jets and heavy seas. IP56 is also common for splash-prone areas.

Can this receptacle withstand harsh marine environments?

Yes, the housing is UV-stabilized polycarbonate and external metal parts are stainless steel, providing excellent resistance to saltwater, corrosion, and marine chemicals.

Is this receptacle suitable for shore power connection?

Absolutely. It is commonly used for marine shore power inlets and connections, offering a durable and safe interface between the vessel and an external power source.

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