Tdk lambda dpp series din rail power supply tdk lambda dpp120 12 3 at 75 x 124 x 112mm tdk lambdas dpp120 12 3 din rail psu is compact and offers a single 120w 12v dc 10a output from a universal 340 to 575v ac 480 to 820v dc 3 phase inputthe output voltage can be adjusted approx plusmn10 via the power supplys front potentiometer for higher power operation two power supplies can be connected in parallelthe power supply features a low ripple and noise of 50mv or less and are protec