Power supply unit PHOENIX-CONTACT QUINT-PS/3AC/24DC/20 480 W, 320–575 V AC input, 24 V DC output

PHOENIX-CONTACT QUINT-PS/3AC/24DC/20 is a DIN-rail power supply unit providing 480 W of continuous output power. Designed for three-phase AC input in the 320–575 V range at 45–65 Hz, it delivers a regulated 24 V DC output intended for industrial control systems, automation equipment and modular control cabinets. The unit's compact form factor (69 × 122 × 130 mm) and robust green/grey housing allow mounting on standard DIN rails where stable DC power and reliable operation are required.

Advantages

The QUINT-PS series power supply features high total power density in a compact housing, ensuring space-efficient integration into control cabinets. It offers wide input voltage tolerance for three-phase systems and stable 24 V DC output suitable for sensitive automation electronics. The design includes protections and thermal management that maintain reliable operation under fluctuating mains conditions. Built to industrial standards, the unit supports continuous operation and simplifies installation and maintenance.

Suitable for

Key specifications

How to use

Mount the QUINT-PS on a standard DIN rail inside a control cabinet, ensuring adequate clearance for ventilation. Connect the three-phase AC supply within the specified 320–575 V range and verify correct phase sequence and grounding according to local electrical standards. Connect the 24 V DC output to the load, observing polarity and load capacity limits. Perform initial commissioning checks for output voltage under no-load and rated-load conditions. Use appropriate wiring and overcurrent protection consistent with system design and safety regulations.

Recommendations

Install the power supply in an environment that meets rated temperature and humidity conditions, provide sufficient airflow around the unit, and avoid mounting near strong heat sources. Verify that upstream protective devices (fuses/breakers) and downstream distribution follow the equipment requirements. Regularly inspect connections and terminal tightness during preventive maintenance to ensure continuous, reliable 24 V DC supply for control and automation systems.