GE 8920-PS-D Power Supply Module

Product Brief Introduction: The GE 8920-PS-D is a DC power supply module for GE PLC racks. It converts incoming AC or DC line voltage into regulated low-voltage DC power required by the CPU, I/O modules, and backplane. Reliable power delivery is critical for system stability and data integrity.
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Technical Specifications:
Input Voltage: 120/240VAC or 24VDC (verify label)
Output Voltage: +5VDC, +24VDC (aux)
Output Current: Rated amps (check specific model)
Regulation: ±5% typical
Ripple: Low ripple noise
Protection: Over-voltage, over-current, short circuit
Efficiency: >80%
Operating Temp: 0°C to 60°C
Functional Features:
Universal input range (AC models).
Active PFC for clean power draw.
Remote sense capability (optional).
Status LEDs for OK/Fault.
Hot-swappable (with redundant config).
Wide operating temperature range.
Application Scenarios:
Primary power for PLC racks.
Powering field transmitters (24V aux).
Redundant power systems.
Retrofitting older systems.
Harsh environment installations.
Performance Parameters:
Hold-up Time: Maintains output during brief dips.
Transient Response: Fast recovery from load steps.
MTBF: High reliability design.
Thermal Management: Efficient heat dissipation.
EMI Compliance: Meets industrial emission standards.
Structural Characteristics:
Metal enclosure for shielding and cooling.
Fan or convection cooled.
Terminal blocks for input/output.
Mounting ears for rack security.
Warning labels for high voltage.
Working Principle:
Rectifies and filters input AC/DC, chops at high frequency, transforms, and rectifies again to produce stable DC outputs. Feedback loop regulates voltage against load and line variations. Protection circuits shut down unit safely on faults.
Installation Requirements:
Verify input voltage matches supply rating.
Use proper gauge wire for current load.
Ground chassis earth terminal securely.
Ensure airflow vents are unobstructed.
Check output voltage before connecting load.




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