Specifications

• Manufacturer: Westinghouse (Emerson)

• Model: 3D04141G02

• Type: Dual Redundant AC Power Supply Assembly

• Power Modules: (2) PM2775‑1‑3 AC‑DC converters

• Input: 115/230 VAC, 50/60 Hz

• Output: Regulated DC for WDPF backplane

• Mounting: Standard WDPF rack slot

• Status: End‑of‑life (EOL); available as refurbished/used spares

Key Features

• AC Input Design: Unlike 3D04141G01 (DC input), this model accepts direct AC line input.

• 1+1 Redundancy: Dual PM2775‑1‑3 units with automatic failover if one supply fails.

• Backplane Powering: Delivers stable DC power to WDPF CPU, I/O, and communication modules.

• Integrated Tray: Pre‑wired and mounted in a metal rack tray for easy installation and replacement.

• Protection & Diagnostics: Overvoltage, overcurrent, short‑circuit protection; LED indicators for power OK, fault, and active supply status.

Applications

• WDPF DCS Systems: Deployed in thermal power, nuclear power, petrochemical, and large water treatment plants.

• Critical Control Rooms: Provides reliable redundant power for WDPF racks hosting process controls and safety interlocks.

• Legacy System Maintenance: Key replacement part for aging WDPF installations still in operation.

Notes

• Not Compatible with Ovation: Designed exclusively for WDPF DCS; cannot be used with Emerson Ovation systems.

• Spares Market: New units are no longer produced; most available stock is refurbished, tested, and warranted by specialty vendors.

• Qualified Installation Required: Replacement should be performed by technicians familiar with WDPF power systems.

Difference from 3D04141G01

• 3D04141G01: Dual DC input power supply (uses PM2722A‑1 modules).

• 3D04141G02: Dual AC input power supply (uses PM2775‑1‑3 modules).