Output voltage selected by up/down push switches in 1V steps, up to 13V. Long switch lifetime. Voltage can be switched safely at full load without serious contact wear. Output protection is handled by a 30A heavy duty relay. The outputs are opened momentarily between switching times. Fully protected secondary by high speed, micro-processor controlled and resettable electronic trip.
Over current is measured and timed for cases of serious overload and slight overload to decide tripping time, so as to avoid oversensitive tripping in cases of initial heavy current surge, for example lamp bulbs. Slow-blow fuse protection for transformer primary. Shoktty barrier diodes are employed for rectification with less voltage drop and power waste thus eliminating the need for a noisy internal cooling fan.
Specification:
Size: 205 x 150 x 115mm (W x H x D).
Input voltage: 240V, 50 Hz.
Output voltage: 0-13V a.c. at no load. Slightly smoothed d.c gives practical r.m.s values of 0-13V at no load.
Over current is measured and timed for cases of serious overload and slight overload to decide tripping time, so as to avoid oversensitive tripping in cases of initial heavy current surge, for example lamp bulbs. Slow-blow fuse protection for transformer primary. Shoktty barrier diodes are employed for rectification with less voltage drop and power waste thus eliminating the need for a noisy internal cooling fan.
Specification:
Size: 205 x 150 x 115mm (W x H x D).
Input voltage: 240V, 50 Hz.
Output voltage: 0-13V a.c. at no load. Slightly smoothed d.c gives practical r.m.s values of 0-13V at no load.
