The A420-066027-00 is a solid state relay manufactured by Guardian Electric. It is a single-phase, zero-crossing output-type relay with a DC-control input. The relay has a control voltage range of 4-32V DC, a load current rating of 3.2A and a load voltage rating of 100 to 300V AC. It features built-in over-temperature protection, noise immunity and arc suppression. It also has a zero-crossing waveform for optimal performance. The A420-066027-00 is suitable for applications including motor speed controls, small appliance controls, or other loads that require a zero-crossing output.