YOKOGAWA PW482-50

YOKOGAWA PW482-50

1. Product Overview of YOKOGAWA PW482-50

The YOKOGAWA PW482-50 is a factory-original dedicated AC input power module developed exclusively for Yokogawa distributed control systems, including CENTUM VP, CS3000 and ProSafe-RS safety instrument systems. It belongs to the full PW482 serial lineup alongside PW482-00, PW482-11, PW482-E0 and PW482-S01, all built to convert 220–240V AC mains into filtered, regulated multi-channel DC power for FCU field control units, FIO node bases and ESB bus repeaters. Unlike universal industrial power supplies, the YOKOGAWA PW482-50 adopts a chassis-embedded dedicated slot design, matching ANB10D, ANB11D rack structures without extra wiring modification. Engineered for 24/7 non-stop industrial operation, this unit eliminates voltage fluctuation risks caused by unstable factory power grids and supports dual redundant power deployment to cut system downtime for petrochemical, thermal power and metallurgy plants.

2. PW482-50 Complete Model Code Breakdown

1. PW482: Base series identifier, stands for 220–240V AC input DCS power module (PW481 for 110V AC, PW484 for 24V DC input as cross reference models)
2. First digit “5”: Functional classification suffix, meaning standard industrial grade without explosion-proof certification; “E” suffix variants like PW482-E0 carry flameproof protection for hazardous area cabinets
3. Second digit “0”: Basic hardware option, default wide temperature variant covering -20°C to +70°C operating range; code “1” replaces standard thermal components for extreme low-temperature workshop environments

3. Full Technical Parameters of YOKOGAWA PW482-50

• Standard Model: YOKOGAWA PW482-50, compatible variants PW482-00, PW482-11, PW482-S01
• AC Input Spec: 220–240 V AC ±10%, 50/60 Hz ±3 Hz, max input power 230 VA, input surge withstand up to 270 V AC for 5 seconds
• DC Output Spec: Main 24 V DC ±5V (max 5 A), auxiliary 5.1 V DC (7.8 A), output ripple ≤50 mV RMS, full-load conversion efficiency ≥88%
• Physical Size: 49.7 mm (width) × 199.5 mm (height) × 149 mm (depth), unit weight 1.02 kg
• Thermal Design: Fanless natural air convection cooling, operational noise below 35 dB
• Environmental Tolerance: Operating temperature -20°C ~ +70°C; storage temperature -40°C ~ +85°C; humidity 5%–95% RH non-condensing
• Mechanical Resistance: Vibration proof 5–57 Hz, 0.075 mm amplitude; shock resistance 300 m/s² for 11 ms pulse
• Safety Protection Circuits: Built-in overload, overvoltage, overheat and short-circuit auto cut-off protection
• Electrical Insulation: Insulation resistance ≥100 MΩ under 500 V DC test voltage
• Reliability Index: Calculated MTBF 100,000 hours at 25°C ambient temperature
• Housing & Rating: Metal shell with IP20 cabinet protection, exclusive Yokogawa lockable terminal connectors
• Compliance Certifications: CE, UL, KCC industrial control standard certified
• Installation Method: Direct plug-in for P1/P2 power slots of Yokogawa node racks, hot-swappable under redundant power setup

4. Core Functional Advantages of YOKOGAWA PW482-50

First, the multi-stage EMI filter circuit inside YOKOGAWA PW482-50 suppresses harmonic interference from factory inverters and large motors, stabilizing analog 4–20mA signal power supply for I/O modules. Second, dual redundant matching allows two PW482-50 units to run in parallel; single module failure triggers seamless power switching without interrupting DCS operation. Third, fanless structure avoids dust accumulation and mechanical wear, lowering long-term maintenance costs compared to fan-equipped power supplies. Fourth, full compatibility with all mainstream Yokogawa node racks removes the need for adapter brackets during on-site replacement, shortening cabinet overhaul cycles. All PW482 serial units including PW482-50 pass Yokogawa factory aging testing for 72 continuous hours before delivery.

5. Industrial Application & Supply Support

YOKOGAWA PW482-50 serves all facilities deploying CENTUM and ProSafe-RS systems, including refineries, natural gas processing stations, municipal wastewater automation and thermal power plants. System integrators, factory maintenance teams and spare parts distributors frequently stock PW482-50 as emergency replacement stock for aged DCS racks. All our supplied YOKOGAWA PW482-50 units are brand-new original with intact anti-static factory packaging, supported with a 12-month manufacturer warranty and global door-to-door bulk shipping for automation wholesale clients.