NFPW442-51 | Yokogawa | FCN Autonomous Controller | Power Supply Module

Product Description

The NFPW442-51 (NFPW442-51) is a high-reliability alternating current power supply unit specifically engineered for the Yokogawa STARDOM FCN (Field Control Node) autonomous controller series. This module converts a high-voltage AC input (220-240 V) into the regulated DC power required to drive the FCN backplane, CPU, and associated I/O modules. Designed as a core component for distributed control and monitoring, the NFPW442-51 (NFPW442-51) ensures the continuous operation of autonomous logic in mission-critical infrastructure.

This specific hardware revision is the standard, non-explosion-proof variant, optimized for general industrial environments. A key technical advantage of the NFPW442-51 (NFPW442-51) is the inclusion of the ISA Standard G3 option, providing enhanced conformal coating. This protective layer allows the hardware to resist corrosion in harsh environments where high concentrations of reactive gases or moisture are present, significantly extending the service life of the controller hardware.

Technical Specifications

• Brand: Yokogawa Electric Corporation

• Model Designation: NFPW442

• Specific Config Code: NFPW442-51

• Hardware Category: Autonomous Controller Power Supply

• Input Voltage Range: 220 V AC to 240 V AC (Single Phase)

• Input Frequency: 50/60 Hz

• Protection Level: ISA Standard G3 (Environmental Conformal Coating)

• Explosion Protection: None (Standard Type)

• Module Dimensions: 14.7 cm (H) x 5.0 cm (W) x 14.7 cm (D)

• Unit Weight: 0.6 kg

• System Series: STARDOM FCN / FCJ Series

• Installation Slot: Dedicated Power Supply Slot in FCN Base Module

Operational Applications

The NFPW442-51 (NFPW442-51) is predominantly utilized in STARDOM-based control systems for upstream oil and gas production, water treatment facilities, and renewable energy monitoring. Its compact 50mm width allows for high-density installation in electrical cabinets. The G3-rated coating makes it particularly effective in wastewater treatment plants and chemical facilities where airborne corrosive agents are a constant concern for sensitive electronics.

FAQ

What is the benefit of the Suffix 1 (G3 Option) on this module?

The "1" in the suffix of NFPW442-51 (NFPW442-51) indicates compliance with ISA S71.04 Severity Level G3. This means the module is treated with a specialized coating to prevent corrosion of copper and silver components, which is vital for long-term stability in harsh industrial atmospheres.

Can the NFPW442 be used in a redundant power configuration?

Yes, the STARDOM FCN chassis typically allows for dual power supply modules. Installing two NFPW442-51 (NFPW442-51) units provides the system with hardware redundancy; if one unit loses AC input or fails, the second unit will seamlessly maintain the controller load.