KV-10AT is a PLC by Keyence and is included in their Visual KV Series of parts. KV-10AT is a basic unit with 10 inputs/outputs. KV-10AT is an AC PLC and includes a transistor type output, the input voltage for KV-10AT is 100 to 240 VAC. The base unit has a current consumption rating of 80mA or less, and you can operate the unit in a temperature range of 32 degrees up to 122 degrees. The manual for these transistor type Keyence units can help with the part number break down. The Visual KV Series units will show an error message if there are no programs down loaded onto the PLC. The error message will blink and be named Error 40, this error will show as soon as you turn your unit on for the first time. To cancel the error 40 message, you can hit any button on the built-in display. Only install the KV Visual Series units in a vertical position inside the control panel. Be sure to use the insulated type of terminals that are the crimp style. The wiring-materials for the KV-10AT unit, should be a sheath of 0.4 millimeters or larger of lead wires. The Keyence Visual KV series units save space when installing because these units are the smallest AC type PLC's in the world and are equipped with terminal blocks that screw into the unit. The least amount of scan time for these Visual KV units is 140 microseconds, which makes these units the fastest in their class.