Centre tap available as standard., Offered with either 230/240V or 400/415/440V primary tappings suitable for both British & European mains supply voltages., Two secondary voltage options are offered; both of which are provided with a centre tap., 24V output models are available in output power ratings of 50VA to 500VA., 110V output models are available in output power ratings of 50VA to 1500VA., Designed to comply with BS 3535:1990 (EN 60742).