The GE PAC8000 8920-PS-DC is an intrinsically safe DC power supply module designed for the PAC8000 SafetyNet control system. It provides isolated DC power for intrinsically safe I/O modules used in hazardous-area industrial applications.
The module is designed to supply power to 2/1 intrinsically safe modules through the PAC8000 carrier system. It accepts a nominal 24 VDC input and provides a regulated 12 VDC output with galvanic isolation, supporting safe operation in demanding process environments.
🔧 Key Features
• GE PAC8000 SafetyNet system component
• Intrinsically safe DC power supply module
• Designed for hazardous-area applications
• 24 VDC nominal input power
• 12 VDC isolated output
• 5 A output capacity
• Supports load sharing for redundant power configurations
• Galvanically isolated output design
• Compatible with PAC8000 IS I/O modules
• Suitable for Zone 2 / Class I Division 2 environments
📋 Product Datasheet
• Brand: GE Fanuc / GE Intelligent Platforms
• Model: 8920-PS-DC
• Product Type: Intrinsically Safe DC Power Supply Module
• Series: PAC8000 SafetyNet
• Main Function: IS Module Power Supply
• Input Voltage: 18–36 VDC (24 VDC nominal)
• Output Voltage: 12 VDC
• Output Current: 5 A maximum
• Output Type: Galvanically isolated, voltage clamped
• Output Application: Power supply bus for intrinsically safe I/O modules
• Load Sharing: Supported for redundant operation
• Power Consumption: System dependent
• Protection: Current limiting and fault protection
• Hazardous Area Rating: Zone 2 / Class I Division 2 applications
• Dimensions: Approx. 120 × 42 × 120 mm*
• Weight: Approx. 0.35 kg*
• Mounting: PAC8000 carrier unit
• Operating Temperature: System dependent
• Country of Origin: China / production version dependent
• Application: Safety Control / Process Automation
🏭 Typical Applications
The 8920-PS-DC is used in process industries requiring intrinsically safe field instrumentation and reliable power distribution.
Typical applications include:
• Oil and gas facilities
• Petrochemical plants
• Chemical processing systems
• Power generation plants
• Hazardous-area process control
• Safety Instrumented Systems (SIS)
⚡ Power Supply Function
The 8920-PS-DC converts incoming 24 VDC system power into an isolated 12 VDC supply for intrinsically safe PAC8000 I/O modules. The design includes voltage clamping and fault-tolerant protection features for hazardous-area operation.
The module can support load sharing, allowing multiple power supplies to be combined in systems requiring increased availability and redundancy.
🔌 System Integration
The module is installed on the PAC8000 carrier system and provides power to intrinsically safe field interface modules.
Basic installation checks:
• Verify 24 VDC input polarity
• Confirm PAC8000 carrier compatibility
• Check power-sharing configuration
• Verify IS module power requirements
• Check module status indicators
• Confirm system diagnostics after startup
🛠️ Installation Notes
Before replacement, verify the complete part number 8920-PS-DC, carrier type, power configuration, and connected intrinsically safe I/O modules.
Disconnect system power before removing the module. Ensure hazardous-area installation procedures are followed and confirm that field circuits meet the required intrinsic safety specifications.
After installation:
• Check power LED status
• Verify output voltage
• Confirm connected IS modules start correctly
• Review controller diagnostics
• Test field communication and I/O operation
📦 Ordering Information
The verified identification is GE PAC8000 8920-PS-DC Intrinsically Safe DC Power Supply Module. Available technical references identify this module as an IS power supply with 24 VDC input, 12 VDC output, and 5 A capacity for PAC8000 SafetyNet systems.
Please confirm the exact model number before ordering, as PAC8000 power modules include different AC and DC versions with different voltage specifications.
*Dimensions, weight, and environmental values are reference values and should be verified against the exact hardware revision before engineering installation.
