Technical Specifications

• Model: 405A528G63

• Manufacturer: Westinghouse / Emerson

• Compatible Systems: Ovation, WDPF DCS

• Type: Chassis‑mounted, plug‑in DC power supply

• Input: 115/230 VAC, 50/60 Hz (auto‑sensing)

• Output: Multiple regulated DC rails (Multibus standard voltages), highest current rating in G61/G62/G63 line

• Hot‑swap: Yes (replace online without system shutdown)

• Redundancy: Supports 1+1 redundant operation

• Dimensions (H×W×D): ~13.3 cm × 44.5 cm × 25.4 cm

• Weight: ~1.42 kg

• Operating Temperature: 0 °C to 50 °C

• Relative Humidity: 5%–95%, non‑condensing

• Protection: Overvoltage, overcurrent, short‑circuit, overtemperature

• Features: EMI filtering, conformal coating, LED status indicators

Series Comparison: G61 vs G62 vs G63

• 405A528G61: Standard output, for light–medium I/O loads

• 405A528G62: High output, for medium–heavy I/O loads

• 405A528G63: Maximum output, for full chassis + redundant DPUs / heavy I/O loads

Application Fields

• Power Generation: Thermal, nuclear plants (Ovation/WDPF DCS core power, full‑load chassis)

• Process Industries: Petrochemical, pulp & paper, cement, water treatment (high I/O density)

• Redundant DPU Configurations: Preferred for chassis with dual DPUs and full I/O slots

• Legacy System Upgrades: Direct, drop‑in replacement for G61/G62 when higher power is needed

Installation & Operation

1. Insert into dedicated power slot of 405A528 series chassis.

2. Secure front‑panel screws; connect AC input to chassis.

3. Verify Power OK LED (green = normal).

4. For redundancy, install a second G63 in the adjacent slot.

5. Hot‑swap faulty units during operation if Fault LED (red) illuminates.

Diagnosis & Maintenance

• Green Power LED: Normal DC output.

• Red Fault LED: Overvoltage, overcurrent, overtemperature, or fan failure.

• Quarterly: Inspect LEDs, connectors, and vents; clean dust if needed.

• Safety: Disconnect AC before removal; allow capacitors to discharge.

Product Status