Yokogawa Power Supply PW402

Description

Yokogawa PW402 is a high-power single-channel output power module for the Yokogawa CENTUM CS / CENTUM VP DCS system, specifically designed for high-load control stations, supporting wide voltage input and fan cooling.
I. Model and Positioning
Model: PW402 (common suffix S2, hardware version 2)
Series: Standard DCS power supply for CENTUM CS / CENTUM VP
Core Positioning: 5.1V/20A high current single-channel output, providing stable power supply for CPU, communication, and high-density I/O
Different from the PW48x series: PW402 has a single 5.1V output; PW481/PW482 have a 5V + 24V dual-output
II. Key Electrical Parameters (New Original Equipment)
Table
Parameter Item Specification
Input 100–240 VAC, 50/60 Hz (wide voltage adaptive)
Output 5.1 VDC / 20 A (single path)
Total Power 102 W (5.1V × 20A)
Efficiency >85% (full load)
Cooling Fan forced air cooling (heat dissipation for high load)
Protection Overvoltage, Overcurrent, Short Circuit, Undervoltage, Overheat Protection
Isolation Input – Output 1500 VDC Isolation
Redundancy Supports 1+1 Redundancy (paired with PW401/PW404 of the same specification)
Hot Swap Supports (live replacement, without affecting system operation)
III. Physical and Installation
Size: Approximately 51 (W) × 229 (H) × 203 (D) mm
Weight: Approximately 2.0 kg
Installation: Standard DCS Rack Installation (not DIN rail)
Operating Environment: 0–50°C; 5–95% RH (no condensation)
Fuse: 6.3A slow-melting fuse for 220–240V AC input