Rubycon PD27A Power Supply Unit - 24 VDC, 8 A

The Rubycon PD27A is a robust industrial power supply unit that converts a wide-range AC input (200-480 VAC, 50/60 Hz) to a regulated 24 VDC output at 8 A continuous current. Designed for PLC racks, sensors, actuators, and other automation equipment, this supply offers high efficiency and comprehensive protection for reliable operation in harsh environments.

Input and Output Specifications

Input voltage: 200-480 VAC (single-phase or three-phase capable), 50/60 Hz. Input current: 1.5 A at 480 VAC, 3 A at 200 VAC. Output voltage: 24 VDC ±2% adjustable. Output current: 8 A continuous (10 A peak for 5 seconds). Output power: 192 W. Ripple: < 50 mV peak-to-peak.

Protection Features

Built-in overvoltage (shut down at > 30 V), overcurrent (foldback current limiting), short-circuit (hiccup auto-recovery), and overtemperature (thermal shutdown with auto-restart). Input fuse is internal and not user-replaceable. Also includes input transient suppression (MOV).

Efficiency and Cooling

Efficiency: > 88% at full load. Cooling: natural convection (fanless design). The unit has an integral heatsink for heat dissipation.

Diagnostic and Monitoring

Green LED indicates output OK. A relay contact (normally closed) provides remote alarm for output failure. The unit also has a DC OK signal (0-10 V) for analog monitoring.

Environmental and Mechanical Data

Operating temperature: -10 to +60°C (derating above 50°C). Storage: -20 to +85°C. Humidity: 20-90% non-condensing. Mounting: DIN-rail (35 mm) or panel mount. Dimensions: 120 mm x 70 mm x 150 mm (H x W x D). Weight: 1.5 kg. Protection: IP20.

Wiring and Connection

Screw terminal blocks for input (L, N, PE) and output (V+, V-). Wire size: up to 2.5 mm² for input, 4 mm² for output. Use copper conductors only.

Compliance and Certifications

CE, UL 508, and CSA approved. Meets EN 61000-6-2 (immunity) and EN 61000-6-4 (emission). RoHS compliant.

Applications

Ideal for powering PLCs, I/O modules, relays, LED indicators, and small DC motors in industrial control panels, machinery, and process automation.

Installation and Maintenance

Ensure proper clearance for ventilation. No routine maintenance required; periodic cleaning of dust from vents is recommended. Input must be fused externally.

In summary, the Rubycon PD27A delivers stable, efficient, and protected power for a wide range of industrial automation devices, ensuring system reliability.