Sensing input
Voltage:220/400VAC , 1 phase 2 wire
Frequency:50~60Hz
Exciting voltage:20~100VDC
Partial current: STL-F-1 15A , STL-F-2 25A , STL-F-3 30-50A
Regulation:+/-1.5% RMS with 4% engine governing
External Voltage Adustment:+/-10% with 2k ohm 1 watt trimmer