Phoenix Trio-UPS Industrial Power Supply has rugged design with metal housing. It has input voltage rating of 85 - 264 VAC and short-term input voltage of 300 VAC. It has AC operating frequency of 45 - 65 Hz at the input. Power supply unit consumes 0.95 Amp of current at 120 VAC and 0.5 Amp at 230 VAC. DIN rail power supply unit has inrush surge current that is less than 15 Amps with slow-blow/internal 2 Amps input fuse. Unit has power failure bypass of greater than 20 milli-seconds at 120 VAC and 100 milli-Amps at 230 VAC. It features varistor protective circuit/component and transient type surge protection. Power supply units is idle-proof and short-circuit-proof that provides a regulated/adjustable output voltage. It has input/output insulation voltage of 2 kilo-Volt for routine test and 4 kilo-Volt for type test.Power supply unit has nominal output voltage of 24 VDC +/- 1% and output voltage of 22.5 - 29.5 VDC. It has output current of 2.5 Amps at -25 to 55 deg C. It can limit current up to 5 Amps at the event of a short-circuit. Unit has peak-to-peak residual ripple voltage of less than 30 milli-Volts. It has peak-to-peak switching voltage of less than 20 milli-Volts for nominal load. Unit has maximum power dissipation of 0.8 Watts for NO-load and nominal power loss of 10 Watts for maximum load. Primary-switched mode power supply unit has derating temperature of 55 to 70 deg C. It can be connected in parallel/serially at the output. It has control deviation of less than 1%/2% for change in load at 10% - 90% static/dynamic and 0.1% for change in input voltage at +/-10%.Power supply unit has green LED indicator to display the operating voltage with efficiency greater than 86% for 230 VAC and nominal values. The one-Phase unit has maximum permissible relative humidity that is less than or equal to 95% at non-condensing temperature of 25 deg C. It has a solid/stranded conductor cross section of 0.2 - 2.5 sq.mm at the input/output. It has conductor cross section of 24 - 12 AWG at the input/output. It has a stripping length of 9 mm at the input/output. It has a M2,5 screw thread at the input. It displays DC OK with green LED indication when output is greater than 21.5 Volts. It has MTBF of greater than 2054000 hrs according to EN standards. It measures 115 mm x 32 mm x 130 mm.Power supply unit conformance with electromagnetic compatibility directive 2004/108/EC. It conformance with low voltage directive 2006/95/EC. Unit can be mounted horizontally through DIN rail NS 35. It has IP20 deg of protection. It operates at an ambient operation temperature of -25 to 70 deg C. It operates at an ambient storage/transport temperature of -40 to 85 deg C. Power supply unit meets IEC 61709, SN 29500, EN 61000-6-2:2005/29500/60715/60204/60950-1/VDE 0805 (SELV)/50178/VDE 0160 (PELV)/60950-1 (SELV)/60204 (PELV)/61000-3-2/61558-2-17, DIN VDE 0100-410/0106-1010/0106-101, DIN 57100-410, UL/C-UL Recognized UL 60950, UL/C-UL listed UL 508 standards.