The 440K-C21061 is a safety control relay from Allen-Bradley/Rockwell Automation. It is a 24V DC, 4NO/4NC, low voltage, dual voltage, non-reversing, double output, 2 or 3-wire configurable control relay. It is also UL listed and is ideal for applications that require reliable machine/operator area monitoring system. It is also available with a plethora of accessories and mounting kits, making it suitable for a wide range of safety applications.