Main Specifications Current Range 3 x 40A Power (typical) 3 x 400VA at 40A Accuracy (typical) 0. 02% range Frequency Range DC, 0. 001 to1000Hz Accuracy. PW41i is a reliable protective relay test set with high current output (3×40A) and high voltage output (4×300V‐advanced version or 3×300V‐ standard version). It is with built‐ in local system so that the testings could be done easily by the relay test set itself. The PW41i advanced version also. ITEM: RUN-RP340A OUTPUT CURRENT: 40A The relay protection tester can test a variety of single relays such as AC and DC, current, voltage, intermediate, self-holding, signal, etc. The relay. 05 PONOVO POWER CO. Free adjustment of amplitude, phase angle and.