This new replacement transformer is made by MoniServ. It is for Darfon Inverter. It is compatible with the part number that starts with 4011AXXXXX. The secondary resistance is about 1.15 K between S1 and S2 (or S3 and S4). The primary resistance is about 1.4 ohm between P1 and P2 (orP3 and P4).
