About this product

Lauritz Knudsen etaULTRA automatic power factor correction controllers with 3 CT inputs, for contactor switched, thyristor switched or hybrid capacitor banks. Features 3 phase current and voltage measurement, power factor display to 3 decimal places, individual harmonic measurement up to the 31st order, dual power factor setting for mains and DG applications, communication over inbuilt MODBUS RS-485, and suitability for both LT and HT side sensing. Supports 2 quadrant operation on sites without a solar plant and 4 quadrant operation on solar powered installations, where the 4 quadrant setting must be enabled. Panels with more than 16 steps can be built by cascading two controllers in a master-slave configuration.