Altech Corporation PSP-480S24 Switching Regulator

Altech PSP-480S24 is a DIN-rail mountable, switch-select AC-DC power supply that delivers 24 V DC at up to 20 A (480 W) with built-in PFC for industrial control panels. The input can be configured for 90–132 VAC or 180–264 VAC via a switch, with 47–63 Hz operation. The output is adjustable from 24 to 28 V, with a tight voltage tolerance of ±1.0% and regulation: line ±0.5%, load ±1.0%, ensuring stable 24 V operation under varying loads. Ripple and noise are specified up to 120 mV peak-to-peak (measured at 20 MHz with a specified test load). The device features protections for overload (105–150% of rated power with current limiting that recovers automatically), overvoltage (30–36 V or 59–66 V depending on version), and overtemperature (shut down at around 100°C with auto-recovery). Efficiency is rated at 89% typical, supporting a hold-up time of about 23 ms at full load and setup/rise times of 1,200 ms at full load for both 230 VAC and 115 VAC inputs. Operating temperature range is -20 to +70°C with 20–95% RH non-condensing, and storage range is -40 to +85°C with 10–95% RH. The PSP-480S24 complies with UL 508 and EN61000-6-2 immunity requirements, is designed for DIN-rail mounting, and carries a 3-year warranty, making it suitable for powering industrial controllers, sensors, and actuators that require a robust, regulated 24 V supply in automation applications.