APFC(Automatic Power Factor Correction) Relay ATSO-12 STAGE , Power factor Correction Relays suitable for all standard applications. Their intelligent adjustment interface ensures balanced usage of capacitors based on the number of switching operations and the connection time of each step, thus ensuring long life for switchgear and capacitors. Features: • Easy programmable • Quick installation • Compact design • Longer service life • Automatic set-up • Measurement Sensitivity - 2.5% • Automatic recognition of current flow direction • Use in co-generation systems - 4 Quadrant operation • Flashing of Alarm code in case of abnormal conditions • Online display of PF, Voltage, Current, kVAr, capacitor overload and Panel temperature • No-voltage release protection function • Capacitor over-current and panel over-heating protection Available Number of Pole -4 Pole, 5 Pole, 6 Pole, 8 Pole, 12 Pole.