The Bum Han BH-B-0.4-D2211 is a single‑phase transformer rated at 0.4 kVA that steps down from a 220 V (or 200 V) primary to a 110 V secondary. It offers dual primary taps for 220 V or 200 V input and a 110 V output, enabling use with mains in different regions while delivering 110 V to connected equipment. This 1‑phase transformer is designed for voltage conversion and electrical isolation of 110 V devices from higher‑voltage supplies, making it suitable for powering 110 V equipment from a 220 V or 200 V source.
