... :2000 3. Long life time Related product pictureProduct detail AC to AC toroidal transformer StandardUL CE RoHsPrimary115V, 120V, 230V, 240V ... voltage and temperature rise)(3) Inductive voltage test(4) DC resistance test(5) Insulation resistance(6) Hi-POT test ... emission levels, quiet operation, low weight, small size, high efficiency, and easy assembly, our toroidal transformers will deliver the ...