M Series IP68 Maritime Connectors with 2-37 Pin Options

GOST OHS Circular Connector with Multiple Core Count Options

M Series Maritime Connectors: Corrosion-Resistant, IP68, 2-37 Pin Options

For marine systems where saltwater corrosion, vibration, and temperature swings threaten uptime, the M Series connector range provides a dependable link for navigation, engine room, and deck equipment. Available in M5, M8, M10, M12, and M18 shell sizes with 2 to 37 pin configurations, these circular connectors are built to maintain signal integrity and power delivery in demanding offshore and shipboard environments.

Selecting the Right M Series Model for Your Marine System

Choosing the correct connector starts with matching the shell size and pin count to your cable diameter and channel requirements. The M Series portfolio covers a broad spectrum, from compact M5 sensors to high-density M18 multi-pin control connections, all engineered with nickel-plated brass or engineering plastic housings for saltwater resistance.

Core Decision Points for Maritime Connector Selection

1. Environmental Sealing and Corrosion Protection

IP68-rated sealing prevents seawater ingress during deck washdowns and high-pressure cleaning. Nickel-plated brass housings and corrosion-resistant coatings provide a robust barrier against salt spray, supporting long service life in coastal and offshore installations.

2. Electrical Reliability Across Temperature Extremes

With an operating range of -55°C to +150°C, these connectors maintain stable performance from arctic decks to engine room hotspots. Low contact resistance (≤20 mΩ) and high insulation resistance (≥100 MΩ) help prevent signal loss and electrical faults in critical systems.

3. Mechanical Robustness and Termination Flexibility

Screw locking mechanisms resist loosening from ship vibration, while solder and crimp termination options accommodate different assembly processes. The PA66 insulator provides oil and chemical resistance, with flame-retardant properties suitable for engine room environments.

Typical Maritime Applications

• Navigation and communication: GPS, radar, satellite links, and VHF radio connections.
• Engine and propulsion monitoring: Control units, fuel sensors, cooling system monitors.
• Deck and offshore equipment: Crane controls, winch systems, platform sensors, deck lighting.
• Crew and passenger systems: Entertainment wiring, emergency lighting, fire alarms, HVAC controls.

Application Boundaries and Limitations

M Series connectors are suited for marine electronics, sensors, and low-to-medium power distribution. They are not designed for high-voltage main power distribution, subsea use beyond their IP rating, or explosive atmospheres requiring special certification. For such applications, consult our engineering team for alternative series.

Pre-Shipment Quality Validation

Each connector lot undergoes salt spray, vibration, temperature cycling, and waterproof testing before shipment. Custom core counts and cable lengths are available for specialized projects, supported by a technical team experienced in maritime requirements.

Inquiry Checklist for Accurate Quoting

• Required series (M5, M8, M10, M12, M18) and pin count
• Gender (male/female) and mounting style (panel, cable, PCB)
• Cable diameter and conductor size for termination
• Operating temperature range and IP rating needed
• Application environment (deck, engine room, offshore platform)
• Custom needs: cable length, shielding, or marking

Contact our team for a quote, sample, or datasheet. For related options, see our 12G Series Circular Connectors or review the Waterproof SP Series for Maritime Applications.