Shore Power Relay

The Shore Power Relay is an automatic electrical device that transfers power from an external shore power source to a food trailer’s internal electrical system. When connected to grid power, the relay enables essential equipment such as refrigeration units, lighting, and cooking appliances to operate safely and efficiently without manual switching. It is essential for operations at events, commissaries, and fixed vending locations where reliable 120V power is available.

Use in Food Trailers

• Safe Power Transition: Automatically switches from onboard generators or inverter systems to shore power, preventing overloads and electrical backfeed.
• Streamlined Setup: Eliminates manual transfer switches or cable adjustments, reducing setup time and minimizing risk of connection errors.
• Equipment Protection: Delivers consistent voltage to sensitive devices like refrigerators and POS systems, helping prevent damage and downtime.
• Regulatory Compliance: Helps meet local electrical codes by isolating shore power from alternative power sources as required.
• Operational Efficiency: Reduces fuel consumption and generator usage when shore power is available, lowering costs and improving the customer experience.

Expert Advice

Select a shore power relay that matches your trailer’s voltage and amperage requirements, typically 120V at 30 or 50 amps. Use a model rated for continuous duty with a weather-resistant enclosure if installed externally. Include relay testing in routine maintenance to ensure reliable operation during service hours.