Tdk lambda dpp series din rail power supply tdk lambda dpp120 12 at 64 x 125 x 124mm tdk lambdas dpp120 12 din rail psu is compact and offers a single 120w 12v dc 10a output from a universal 90 to 132 186 to 264v ac 210 to 375v dc 1 phase inputthe power supply features a low ripple and noise of 50mv or less and are protected against over current and over voltage conditions in addition the supplies meet en55022 class b emi standards radiated and conducted are certified to ulen6095