Product Core Brief
- Part Number: 8421-CC-PS
- Brand: GE
- Series: GE PACSystems (RX3i / RX7i family)
- Core Function: Redundant power supply module that provides regulated DC power to PACSystems controllers and backplane systems.
- Product Type: Redundant Power Supply Module
- Key Specs: Redundant power supply | PACSystems backplane compatible | hot-swappable | LED status indicators | industrial temperature range
- Condition: New Original / New Surplus
Product Introduction
GE 8421-CC-PS is a redundant power supply module used in GE PACSystems control platforms. It provides regulated DC power to the controller backplane and supports redundant configuration to improve system availability.
The module is designed for industrial automation environments where continuous operation is critical. In a redundant pair, if one power supply fails, the other automatically assumes full load without interrupting controller operation. The module supports hot-swapping, allowing replacement without powering down the system. LED indicators provide visual status for power output and fault conditions.
Note: Public documentation for the exact 8421-CC-PS variant is limited. Input voltage range, output voltage/current, redundancy mode, and compatible backplane models should be confirmed against the module label and system manual before commissioning.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE |
| Part Number | 8421-CC-PS |
| Product Type | Redundant Power Supply Module |
| Series | GE PACSystems |
| Typical Application | PACSystems controller power, redundant power configuration |
| Redundancy | Supported (dual-module configuration) |
| Hot-Swap | Supported |
| Installation | PACSystems backplane / rack mount |
| Status | Legacy / Obsolete |
Note: Exact input voltage range, output voltage/current rating, efficiency, and operating temperature should be verified against the module nameplate and host system documentation.
Quality Control Process (DYNAMIC GENERATION)
- Visual and connector inspection. We check the module housing, backplane connector, LED indicators, and mounting hardware for damage or corrosion.
- Continuity and insulation check. Key power paths and connector pins are verified for correct continuity and no short circuits.
- System compatibility check. The part number and revision are matched against the existing PACSystems rack and controller configuration.
- Power-up and output verification. Where a compatible test setup is available, the module is checked for proper power-up behavior and output voltage regulation.
- Final packaging. After passing inspection, the module is anti-static bagged and foam-packed for shipment.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Confirm input voltage rating. PACSystems power supplies come in AC and DC input variants; the replacement must match the original input specification.
❗ Verify redundancy configuration. If the system uses redundant power, both modules should be the same part number and revision for reliable failover.
❗ Check backplane compatibility. The 8421-CC-PS must be installed in a compatible PACSystems rack; it is not interchangeable with PAC8000 or other GE platform power supplies.
❗ Do not hot-swap without confirming system design. While the module supports hot-swapping, the host system must be configured for redundant power before removing a live unit.
❗ Verify output voltage and current. Ensure the replacement module’s output rating meets or exceeds the original system load requirements.
❗ Handle as ESD-sensitive equipment. Always use anti-static handling procedures during removal, installation, and storage.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| GE 8421-CC-PS | GE 8421-CC-PS | Direct | Same part number; verify revision and input/output rating. |
| GE 8421-CC-PS | GE PACSystems PS series variants | Needs Adaptation | Same PACSystems family; confirm input voltage and output current. |
| GE 8421-CC-PS | GE PAC8000 power supplies | Not Compatible | Different backplane, Railbus, and communication architecture. |
| GE 8421-CC-PS | Non-PACSystems GE modules | Not Compatible | Different platform and mounting standard. |
Benchmark highlights
- Redundant power supply for GE PACSystems controller platforms.
- Hot-swappable design supports maintenance without system shutdown.
- LED status indicators for quick fault diagnosis.
- Suitable for industrial automation, process control, and critical infrastructure applications.
- Legacy product; best suited for existing system maintenance and like-for-like replacement.
