Senko Marine Waterproof Type Socket with Locking RL-2 IP56 16-20A

Senko Marine Waterproof Type Socket with Locking RL-2 (IP56 | 16A-20A)

The Senko Marine Waterproof Type Socket with Locking RL-2 is a heavy-duty, industrial-grade electrical receptacle developed solely for marine boats, offshore platforms and harshly corrosive maritime environments. This premium watertight socket outlet from Senko Guichi Electric has a built in mechanical safety interlock system that prevents inadvertent disconnects and electrical arcing under severe load circumstances.

The RL-2 type has IP56 ingress protection rated for reliable power and circuit integrity against high pressure water jets, strong waves and fine salt-dust penetration. This connection is an essential element for secure onboard power distribution, available in dual voltage configuration to match the global fleet architecture.

Model Details

• Brand / Manufacturer: Senko Guichi Electric
• Model Number: RL-2
• MPN (Manufacturer Part Number): RL-2-2P-IP56
• Configuration: 2P+E (2 Poles + Earth / Grounding)
• Safety Mechanism: Mechanical Interlock Switch (Prevents plug insertion or removal while the power switch is in the “ON” position)

Specifications: Waterproof Socket RL-2

Main Features

1. Integrated Mechanical Safety Interlock: A rugged locking switch physically captures the plug in the receptacle during energised power delivery, eliminating all possibility of inadvertent separation or dangerous arc-flashes.
2. IP56 True Watertight Shell: Internal brass contacts protected from strong sea spray, washdowns and salt fog by precise rubber gasketing and a spring-loaded closing flip-cap.
3. Corrosion-Resistant Contact Pins: Heavy-duty nickel-plated brass components prevent the growth of copper oxide and marine tarnish to provide a low resistance electrical channel over thousands of duty cycles.
4. High-Impact Enclosure: Flame-retardant, UV-stabilized engineered plastics to resist severe engine room vibration, mechanical impact and long-term thermal stress.
5. Dual Current/Voltage Adaptability: The versatile 16-20A rating offers flexibility for different electrical systems, making it a suitable drop-in standardisation piece for international cargo ships, tugs and offshore rigs.

Where to use?

• Open Deck Machinery: Providing reliable shore power or auxiliary connections to deck winches, cranes and washdown equipment during extreme weather.
• Engine room compartments in high temperature and high vibration zones power portable ventilation fans, high load welding machines, and maintenance diagnostic devices.
• Galley & Provision Areas: Provide secured electrical supply outlets for commercial refrigeration units and large maritime culinary equipment vulnerable to frequent washdowns.

Compatibility & Part Number Cross-References

• The Senko RL-2 series interchanges with or replaces several marine-standard interlocking watertight configurations:
• Direct Interchange: Shengan Marine RS1L-2M Series
• Functional Alternative: Palazzoli 491233 Series / Bals Elektrotechnik 160501 Switched Interlock Sockets
• System Compatibility: Fits standard marine-grade 2P+E matching plugs conforming to international marine electrical standards.

Tips for Optimal Life:

1. Gland Sealing – Ensure that marine grade rubber compression cable glands are used at the entry point into the housing during the first installation. Apply a thin layer of marine silicone sealant around the mounting threads to prevent water entering the terminal block via capillary action.
2. Dielectric Maintenance: During routine PMs (Preventative Maintenance), isolate the breaker, lift the flip-cap and lightly spray a high grade dielectric moisture-displacing spray (e.g., CRC Marine Cleaner or equivalent) directly on the contact sleeves.
3. Interlock Inspection Cycle the mechanical interlock regularly (with no plug in the socket) to ensure the internal safety shutter mechanism resets easily and has not been seized by salt encrustation.