Product Overview

The Yokogawa PW484-10 functions as the high-capacity energy core for CENTUM and STARDOM Distributed Control Systems. This 24V DC input power supply module provides regulated, stabilized power to system processors and high-density I/O configurations. We supply this unit as 100% Brand New and Original, featuring the Style S1 design revision and specialized hardware options for extreme temperature resilience. It ensures continuous logic execution in mission-critical environments where standard power modules might fail.

Part Number Breakdown: PW484 Series

• PW484: 24 V DC Input Power Supply Module.

• Suffix -5: Standard type with no explosion protection.

• Suffix 0: Basic type specification.

• Temperature Option: Integrated hardware support for extended ranges (-20 °C to 70 °C).

• S1: Style 1 revision for optimized electrical isolation and circuit protection.

Technical Specifications

• Manufacturer: Yokogawa Electric Corporation

• Model Number: PW484-10 (Style S1 / PP2283)

• Input Voltage: 24 V DC

• Output Voltage: 24 V DC (Regulated)

• Output Power: 240 Watts (High Capacity)

• Efficiency: ≥ 85%

• Operating Temperature: -20 °C to +70 °C (Wide Temperature Option)

• Cooling Method: Natural Convection (Fanless design)

• Redundancy: Supports Dual Redundant Operation with Load Sharing

• Weight: 0.8 kg (Net) / 2.0 kg (Shipping)

• Dimensions: 50 × 130 × 146 mm

Engineering Advantages

• Extreme Environmental Resilience: The PW484-10 features a specialized wide-temperature option, allowing the module to operate reliably from -20 °C to +70 °C. This makes it an essential choice for outdoor remote terminal units (RTUs) or unconditioned industrial control rooms in extreme climates.

• High-Density 240W Output: Unlike standard power cards, this module delivers a robust 240W of power. This high capacity allows a single module pair to energize a fully populated DCS rack, reducing the number of power cards required and saving valuable backplane slots.

• Advanced Logic Protection: Integrated over-voltage, over-current, and short-circuit protection circuits instantly isolate the module from field-side electrical faults. This "fail-safe" design ensures that an external short circuit does not propagate to the sensitive system CPU.

• Zero-Downtime Redundancy: The module supports active-active dual redundant operation. In the event of a power source or module failure, the secondary unit maintains the 24V DC rail without a single millisecond of interruption, eliminating the risk of process trips.

• Fanless Maintenance-Free Design: By utilizing advanced heat dissipation and natural convection, the PW484-10 eliminates the need for mechanical cooling fans. This removes a critical failure point and prevents the intake of corrosive airborne contaminants into the module circuitry.

FAQs

• Can I use the PW484-10 in a 110V or 220V AC system?No. The PW484-10 is a 24 V DC Input module. If your system relies on AC mains power, you must select the PW481 or PW482 variants designed for AC-to-DC conversion.

• Is the S1 style compatible with older PW484 installations?Yes. The Style S1 (often cross-referenced with PP2283) maintains full mechanical and electrical backward compatibility with standard PW484 racks while offering improved internal component reliability.

• Does the module require a special base for hot-swapping?Hot-swap capability depends on the Yokogawa rack or base module configuration (such as the NFBU050). When installed in a compatible redundant rack, you can replace a faulty PW484-10 while the system remains live.

• Why should I choose "Brand New" for high-capacity power modules?High-capacity modules like the 240W PW484-10 generate significant internal heat during operation. Used or refurbished units often suffer from stressed power transistors and degraded capacitors that are prone to failure under full load. A 100% Brand New unit guarantees factory-spec thermal performance and a full operational lifespan.