PHOENIX CONTACT USA DIN Rail Power Supplies 1140066

The Phoenix Contact STEP3-PS/1AC/24DC/4/PT power supply unit is designed for building automation applications, providing a nominal output of 24 V DC at 4 A. It features a primary-switched design with high efficiency, exceeding 93% at 120 V AC and 94% at 230 V AC, ensuring low idling losses. The unit is compliant with RoHS standards and is suitable for DIN rail mounting. With an input voltage range of 100 V AC to 240 V AC and a frequency range of 50 Hz to 60 Hz, it supports various electrical environments. The power supply operates within an ambient temperature range of -10 °C to 70 °C, with a start-up temperature of -25 °C. It is rated for a maximum altitude of 4000 m and can withstand relative humidity levels of up to 95% (non-condensing). The device includes features such as short-circuit protection, no-load proofing, and overvoltage protection, making it robust for various applications. It has a compact size with dimensions of 72 mm x 90 mm x 55 mm and weighs 255 g. The power supply is also rated for a mean time between failures (MTBF) of over 1.35 million hours at 25 °C, indicating high reliability.