... ~3000VA b. Primary 100V, 115V, 120V, 230V, 240V / 50 Hz c. Secondary Customized Power range: 20VA to 10KVAd. Standard UL506, UL1411 ... , EN61558, EN6060-1, UL2601, UL544 e. Insulation Class B, Class F, Class H f. Mounting One Metal plate, Two Rubber pads ... engineer and worker, organized a full quality control and R&D team.c. Use refined material, such as core, wire, and copper ...