2952855 PHOENIX

Phoenix Contact power supply and distribution boards serve as the core power infrastructure for control systems, transforming primary mains voltage into stabilized industrial low-voltage power (typically 12 VDC, 24 VDC, or 48 VDC). Designed with advanced topology, these units handle high dynamic loads and capacitive startup surges without causing voltage drops across the network. Built-in power management technologies, such as dynamic power boost and preventive function monitoring, actively monitor output parameters and signal impending faults before system outages occur. Their compact, DIN-rail mountable designs allow easy integration into crowded electrical enclosures, while modular expansion options support redundancy, selective circuit protection, and uninterruptible power supply (UPS) integration.

Product Parameters

• Input Voltage Range: Wide-range input supporting single-phase and three-phase AC voltages from 85 VAC to 264 VAC, or DC input ranges from 90 VDC to 350 VDC.

• Output Voltage: Regulated DC output typically set at 24 VDC, adjustable via front-panel potentiometer from 18 VDC to 29.5 VDC to compensate for voltage drops over long cable runs.

• Nominal Output Current: Available in ratings from 2.5 A up to 40 A per single unit, with capability for parallel expansion.

• Efficiency Rating: High operational efficiency exceeding 93% to 95% at full load, reducing thermal dissipation inside control cabinets.

• Power Boost Capability: Static power boost providing up to 125% continuous output power at elevated ambient temperatures, plus dynamic power boost delivering up to 200% power for 5 seconds to start heavy capacitive or inductive loads.

• Residual Ripple: Low output noise and ripple voltage below 30 mV peak-to-peak.

• Insulation and Isolation: Galvanic isolation between primary input and secondary output with isolation ratings up to 4 kV AC.

• Operating Temperature: Industrial operating range from -25°C to +70°C (-13°F to +158°F), with derating starting above +60°C.

• Protection Class: IP20 enclosure rating for cabinet mounting according to IEC standards.

• Signaling Interfaces: Active transistor outputs and floating relay contacts for remotely reporting DC OK status and load warnings.

Product Advantages

Phoenix Contact power supply boards deliver superior power availability through integrated preventive monitoring features that signal critical operating states before system faults happen.

Exceptional energy efficiency minimizes heat loss inside control enclosures, extending the lifespan of neighboring automation components and eliminating the need for aggressive active cooling.

High dynamic power reserve capability ensures reliable startup of demanding loads without requiring oversized power supply units.

Integrated selective fuse breaking technology allows fast tripping of standard miniature circuit breakers on faulty branch lines while keeping remaining system branches running without interruption.

Push-in terminal connection technology speeds up panel assembly, minimizes maintenance requirements, and provides high resistance against mechanical vibration and thermal expansion.

Important Considerations and Precautions

Always verify proper primary circuit fuse sizing and ensure input power lines are fitted with appropriate external surge protective devices according to system environmental ratings.

Provide adequate vertical clearance above and below the power module inside the cabinet to facilitate natural thermal convection and prevent internal component overheating.

Do not connect power supply outputs in parallel to increase capacity unless the specific model explicitly supports active current-sharing mode or is routed through decoupling diode modules.

Ensure protective earth wiring is securely connected to the designated grounding terminals before applying primary voltage to prevent electrical shock hazards.

Avoid operating the unit continuously above its nominal thermal rating without implementing proper cabinet cooling or derating load requirements accordingly.

Product Applications

Phoenix Contact power supply boards are widely used across automated production facilities, process industries, and critical infrastructure installations requiring uninterruptible DC power.

• Industrial Control Cabinets: Supplying clean, regulated 24 VDC power to programmable logic controllers, industrial computers, touch panels, and remote I/O racks.

• Robotics and Motion Systems: Providing steady power to motor drives, brake circuits, and safety interlocks subject to rapid dynamic load fluctuations.

• Process Instrumentation: Powering sensitive field transmitters, analytical sensors, flow meters, and control valves across chemical and pharmaceutical plants.

• Power Generation and Distribution: Serving as reliable power sources inside substations, wind turbine nacelles, and solar inverter control enclosures.

• Transportation and Infrastructure: Supplying auxiliary DC power systems in railway signaling equipment, traffic management systems, and automated material handling facilities.

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