Marine relays are electrical switches used to control refrigeration systems on ships. Refrigeration systems in marine applications maintain optimal temperatures for cargo and onboard provisions. These relays ensure reliable operation by managing power distribution and system components efficiently.

Marine Relays: Size - Varies by model (typically 20mm to 100mm); Grade - IP67 or higher for waterproofing; Material - Stainless steel or corrosion-resistant alloys; Voltage Rating - 12V to 240V; Current Rating - 5A to 50A; Contact Type - Normally Open (NO) or Normally Closed (NC).

Refrigeration Systems: Size - Compact to large (0.5m³ to 5m³ capacity); Grade - Marine-grade compliance (ISO 8846); Viscosity - Refrigerant-specific (e.g., R134a, R404a); Material - Copper, aluminum, or stainless steel; Cooling Capacity - 1kW to 50kW; Operating Pressure - 10 bar to 30 bar; Buoyancy - Neutral or positive for marine stability.