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Product Overview

The NFPW444-50 (Model: NFPW444-50) is a high-efficiency DC-to-DC power supply module specifically engineered for Yokogawa’s CENTUM VP and CS 3000 Field Control Stations (FCS). Designed for industrial facilities that utilize centralized 24V DC battery backup systems or DC power grids, this module provides the critical voltage conversion necessary to drive core system components.

As a "Basic Type" module (designated by the -50 suffix), the NFPW444-50 (Part Number: NFPW444-50) converts unstable DC input into a highly regulated +5.1V DC output. This output powers control processors and internal communication circuitry, ensuring deterministic system performance and preventing data corruption. For mission-critical availability, the module supports a 1:1 dual-redundant configuration. In this setup, two modules operate in parallel; should one unit fail, the healthy module assumes the full 7.8A load instantaneously, ensuring the DCS remains operational without a reboot or loss of volatile memory.

Technical Specifications

The NFPW444-50 is designed for continuous duty and precise voltage regulation within industrial control racks.

  • Manufacturer: Yokogawa Electric Corporation (Japan)

  • Model Identification: NFPW444-50

  • DCS Compatibility: CENTUM VP, CENTUM CS 3000

  • Product Function: DC-to-DC Power Conversion

  • Rated Input Voltage: 24 V DC

  • Permissible Input Range: 21.6 V to 31.2 V DC

  • Output Voltage: +5.1 V DC (Internal Logic Power)

  • Rated Output Current: 0 A to 7.8 A

  • Redundancy Capability: Supports 1:1 Dual-redundant parallel operation

  • Cooling Method: Natural convection (No moving parts)

  • Status Indicators: Front-panel Power/Status LEDs

  • Operating Temperature: 0°C to +60°C

  • Storage Temperature: -20°C to +85°C

  • Net Weight: 0.6 kg (1.32 lbs)

  • Dimensions (H x W x D): 13.0 cm x 4.97 cm x 14.65 cm

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