For low power relays, select a voltage option that matches the control circuit, such as 6, 12, or 24 volts DC, and choose a contact rating that exceeds the voltage and current requirements of the switched load. An SPDT relay provides one changeover circuit, while a DPDT relay provides two, making the configuration useful when the application requires separate switching paths or additional control functions.

Before installing a low-power relay, check that its operating voltage matches the control circuit and confirm whether it accepts positive, negative, or both trigger inputs, along with the required trigger voltage. Review the relay’s current draw, trigger current, contact configuration, and AC or DC contact rating to confirm they suit the control source and switched load.

Low power relays can be used in access control panels, alarm systems, intercoms, security devices, and other low-voltage equipment to switch locks, strikes, lighting, or signaling circuits. Models with SPDT or DPDT dry contacts and low-current activation support installations where a control signal needs to operate a separate circuit or higher-current load.

Check the relay’s mounting method and available space, since options include Snap Track mounting, double-sided foam tape, plug-in terminal blocks, and enclosure mounting hardware. Confirm the control voltage, current draw, trigger polarity, contact configuration, and load rating, then route and terminate conductors according to the relay’s screw-terminal or harness connections.