IS2020RKPSG3A GE

Key Specifications

Advantages & Distinctive Features

• Highest Output Capacity: 400 W total output—supports the largest Mark VIe racks.

• Unmatched Efficiency: >91%—minimizes heat generation and maximizes reliability.

• Active Current Sharing with OR-ing: Enables parallel operation of up to 4 power supplies for true N+1 redundancy.

• Highest Current Capacity: +5 V @ 45 A and +3.3 V @ 40 A—handles the most demanding configurations.

• Widest Temperature Range: –40 °C to +85 °C—suitable for the most extreme environments.

• Thickest Silicone Conformal Coating + Edge Encapsulation: Maximum protection against humidity, salt spray, chemicals, and condensing environments.

• Condensing Humidity Rating: 5–100% condensing—suitable for offshore and unheated installations.

• Predictive Failure Alerts: On-board trend analysis identifies aging components before failure.

• Expanded Diagnostic Log: 1000-event log with voltage/current waveforms for comprehensive post-event analysis.

• Military-Grade Manufacturing: 168-hour burn-in, 100% X-ray/AOI, military-grade components, 150 thermal cycles.

• Gold-Plated Captive Washer Terminals: Corrosion-resistant and vibration-proof connections.

• Hot-Swappable: No rack power-down for replacement.

• Direct Retrofit: Replaces all RKPSG and LVPSG series boards.

Application Fields

• Large Turbine Control Racks: Primary power for Mark VIe systems with extreme I/O density

• High-Density I/O Racks: Power for extensive distributed I/O cabinets

• N+1 Redundant Configurations: Parallel load-sharing with multiple power supplies for mission-critical applications

• Extreme Environments: Arctic (–40 °C), desert (+85 °C), offshore, tropical, and condensing installations

• Nuclear Power Plants: Safety-critical power applications with highest reliability

• Military Applications: High-vibration, extreme temperature, and salt-spray environments

• Retrofit Projects: Upgrading older power supplies to highest capacity

Comparison with RKPSG2A and Competitors

The GE IS2020RKPSG3A offers the highest output capacity, N+1 redundancy, predictive failure alerts, widest temperature range, and military-grade manufacturing—making it the definitive ruggedized power supply solution for the largest, most critical Mark VIe systems in the world’s most extreme environments.

Selection Guidelines

• When to choose:

  • Largest Mark VIe racks requiring >300 W total power

  • N+1 redundant power configurations requiring up to 4 power supplies in parallel

  • Extreme environments (–40 to +85 °C, condensing, chemical exposure)

  • Maximum reliability with predictive failure alerts (nuclear, military, critical infrastructure)

• When to choose RKPSG2A instead: For racks with <300 W power requirements.

• Load Calculation: Sum all board loads—ensure total ≤400 W. +5 V rail ≤45 A; +3.3 V rail ≤40 A.

• Redundancy Planning: For N+1 redundancy, order three supplies for 2+1, or four for 3+1 configurations.

• Cooling: Ensure cabinet airflow ≥250 LFM (increased requirement)—derate above 75 °C.

• Input Wiring: Use 8 AWG minimum (higher current capacity); install fast-acting fuse (50 A) or circuit breaker.

• Coating Verification: Inspect under UV (365 nm)—thickest silicone coating shows distinct fluorescence; verify edge encapsulation bead is continuous and visibly thickest.

• Compatibility: Fits all Mark VIe VME64x racks. Requires ControlST v7.5 or higher for predictive failure alert features.

Operational Precautions

1. Input Polarity: Double-check DC input polarity before power-up.

2. Load Calculation: Verify total rack load ≤400 W—measure current draw during commissioning.

3. Active Current Sharing: Verify load balance (within 5%) across all parallel supplies during commissioning.

4. Cooling: Ensure cabinet airflow ≥250 LFM—higher power output generates significant heat.

5. Predictive Alerts: Review predictive trend data regularly—address warnings before component failure occurs.

6. Redundancy Testing: For N+1 configurations, perform failover tests—verify seamless transfer without voltage dips.

7. Fault Log: Access 1000-event log via Toolbox ST—review voltage/current waveforms and predictive trend data.

8. Status Monitoring: Regularly check front-panel LEDs—redundancy and load-sharing status LEDs indicate system health.

9. Coating Care: Use GE-approved silicone-safe cleaner; inspect annually under UV—rework voids with approved silicone coating per GE FSB-MKVIe-112.

10. Hot-Swap: Remove/insert slowly under power—processor auto-recognizes new module.

11. Spare Stock: Maintain 1 spare per 3–4 racks; “RKPSG3A” backward-compatible with all RKPSG/VPWR sockets.

12. Firmware Updates: Ensure the GE IS2020RKPSG3A is in “standby” mode during updates. Use ControlST v7.5 or higher.

13. ESD: Handle by edges only with grounded wrist strap—coating does not protect connectors.

14. Storage: Anti-static bag with desiccant at –40 to +85 °C; rotate every 3 years for coating inspection.