Phase failure relay, K3PF400VSY02

​The K3PF400VSY02 is a three-phase monitoring relay designed to ensure the stability and safety of electrical systems operating at 400/230V AC. It continuously monitors phase sequence, phase failure, and asymmetry, providing comprehensive protection against common phase-related issues. The relay features an adjustable asymmetry threshold between 5% and 30%, allowing customization to specific application requirements. Equipped with two changeover contacts rated at 250V AC and 5A, the K3PF400VSY02 ensures reliable switching performance. Its compact 38mm plug-in housing is designed for 11-pin socket mounting, facilitating straightforward integration into control panels. LED indicators provide clear visual feedback: a green LED indicates the presence of supply voltage, a red LED signals fault conditions based on set parameters, and a yellow LED shows the status of the output relay. Engineered for precision and durability, the K3PF400VSY02 is an ideal solution for protecting sensitive equipment from phase irregularities in various industrial and commercial applications. - Monitoring relays KAPPA series - Phase failure monitoring in 3-phase networks - Phase sequence, phase failure and asymmetry monitoring - Supply voltage 230V AC - 2 changeover contacts - Pluggable - width 38mm - cap dimension 45mm