KTDTEL000270- Specifications output voltage: adjustable from 3 to 30V, stabilised output current: max. 3A output ripple voltage: 0.5mV short-circuit stable overload protected input voltage: 9 to 30VAC (depending on the desired output voltage) transformer not supplied dimensions: 130 x 91 x 50mm (5.1" x 3.6" x 2.0") recommended housing: L750 or L760