Can I Use a 3-Pole 120VAC Coil Ice Cube Relay to Switch Multiple Voltages on Each Pole?

A 3-pole ice cube relay with a 120VAC coil requires a 120VAC supply to energize the coil properly; supplying voltage higher than the rated coil voltage risks coil damage, while lower voltage may prevent actuation. The coil voltage rating does not restrict the voltage on the relay contacts. Each contact can switch different voltages, provided the contact voltage and current ratings are not exceeded. It is generally acceptable to wire different voltage components (e.g., 480VAC, 208VAC, 24VDC) to separate poles if within specifications, but mixing high voltage (mains) and extra-low voltage (ELV) circuits on the same relay is often discouraged or prohibited by wiring regulations due to safety and insurance concerns. Contact current ratings (e.g., 12A) apply per contact, not combined, and horsepower ratings indicate suitability for motor loads, accounting for high inrush currents during startup. Users should verify relay contact ratings and local wiring codes before mixing voltages on a single relay.
AI summary based on the discussion. May contain errors.