The Zeftronics V1510A Over Voltage Relay is an aircraft electrical protection component designed to safeguard 14-volt aviation electrical systems from damaging overvoltage conditions. Operating with a 16-volt protection threshold, this relay helps prevent excessive voltage from reaching sensitive avionics, electrical accessories, and onboard charging systems.

The unit is commonly installed in general aviation aircraft and works in conjunction with the alternator and voltage regulator system to automatically disconnect the alternator field circuit if unsafe voltage levels are detected.

Its primary features include:
16V overvoltage protection threshold for aircraft electrical systems
Designed for 14-volt aviation applications
Helps protect avionics and sensitive onboard electronics
Automatic alternator field disconnect during overvoltage events
Compact and durable aerospace-grade construction
Suitable for general aviation electrical maintenance and upgrades

Components like the Zeftronics V1510A are important safety devices in aircraft electrical systems, helping maintain stable voltage regulation and protecting critical avionics equipment from electrical damage during flight operations.