Product Overview

The Yokogawa PW442-10 (and its high-spec variant PW442-50-S2) serves as the primary regulated DC energy source for system processors and I/O modules within CENTUM and STARDOM control architectures. This rack-mountable unit converts standard AC mains into a stabilized 24V DC output, ensuring deterministic performance for critical CPU logic. We supply this module as 100% Brand New and Original, featuring the Style S2 engineering enhancements for superior thermal management and electrical stability in heavy process industries.

Part Number Breakdown: PW442 Series

• PW442: Base Power Supply Module Series.

• -10 / -50: Specifies output current capacity and nominal voltage handling (standardly 100W).

• S2: Indicates Style 2 revision, optimized for increased current load and enhanced internal component cooling.

Technical Specifications

• Manufacturer: Yokogawa Electric Corporation

• Model Number: PW442-10 (Compatible with PW442-50-S2)

• Input Voltage: 100–240 V AC (Wide Range), 50/60 Hz

• Output Voltage: 24 V DC (Regulated ±1%)

• Output Power: 100 Watts

• Output Current Range: 0.7 to 4.0 Amps

• Efficiency: ≥ 85%

• Cooling Method: Natural Convection (Fanless design)

• Redundancy: Supports Dual Redundant Operation with Load Sharing

• Protection: Over-voltage, Over-current, and Short-circuit Protection

• Operating Temperature: 0 to 55 °C

• Dimensions: 50 × 130 × 146 mm

• Weight: 0.65 kg (1.00 lbs)

Engineering Advantages

• Parallel Redundancy Support: The PW442-10 allows for dual-module installation in a single rack. This configuration ensures that if one module encounters a fault, the secondary unit instantly maintains the full load. This prevents unplanned system shutdowns in continuous process environments like oil & gas or power generation.

• Fanless Reliability: By utilizing natural convection cooling, the PW442-10 eliminates mechanical fans. This solves the industrial pain point of fan failure due to dust or corrosive gas ingress, significantly extending the Mean Time Between Failures (MTBF).

• Advanced Electrical Safeguards: Integrated protection circuits instantly isolate the module during over-current or short-circuit events. This safeguards expensive downstream DCS processors and I/O cards from electrical transients and potential hardware damage.

• Hot-Swap Maintainability: Depending on your specific rack configuration, the PW442-10 supports hot-swapping. Maintenance teams can replace a power module while the system remains energized, reducing MTTR (Mean Time To Repair) without interrupting the process.

• Stabilized Logic Power: The module maintains a strict 24V DC output even under fluctuating AC input conditions. This provides the "clean" power required by high-speed digital processors to prevent logic errors and data corruption.

FAQs

• Can the PW442-10 handle input voltages outside of the 220-240V range?While some industrial labels specify 220-240V for specific regions, the PW442-10 hardware typically supports a wide-range input of 100–240V AC, allowing it to function globally on various power grids.

• Is the PW442-10 interchangeable with modules from other DCS brands?No. This module features a proprietary Yokogawa connector and form factor. It operates exclusively within Yokogawa CENTUM or STARDOM backplanes and is not compatible with third-party PLC or DCS racks.

• Does this module require periodic maintenance?Because it uses a fanless design, it requires no mechanical maintenance. However, we recommend periodic checks of the status LEDs and ensuring that cabinet ventilation remains unblocked to allow for proper natural convection.

• Why should I buy "Brand New" instead of "Refurbished"?Power supply modules utilize electrolytic capacitors that age over time. Used or "New Old Stock" units may have dried capacitors that fail under high thermal loads. A 100% Brand New PW442-10 ensures you receive fresh components with a full lifecycle and maximum efficiency.