Description:​

The YOKOGAWA PW441-10 is a high-performance industrial power supply module engineered by Yokogawa(a global leader in process automation),designed to serve as a stable energy core for DCS(Distributed Control Systems),PLCs(Programmable Logic Controllers),and critical field devices.It integrates a wide-range AC input,high-precision DC output,and robust protection mechanisms to deliver uninterrupted power—essential for industries like oil refining,chemical processing,and power generation where power instability can cause process disruptions,safety risks,or costly downtime.Its seamless compatibility with Yokogawa’s CENTUM VP DCS and other automation systems makes it a trusted choice for upgrading legacy power infrastructure or building new,reliable control environments.​

Application Scenarios:​

A major petrochemical plant in Singapore faced recurring power-related disruptions in its ethylene cracking unit:legacy power supplies failed to handle grid voltage fluctuations(85-250V AC)and overheated in the plant’s 55°C summer environment,causing 2-3 unplanned shutdowns monthly(each costing

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150,000).Afterdeploying∗∗YOKOGAWAPW441−10∗∗modules,theplanteliminatedvoltage−relatedissuesviathemodule’s85−264VACwideinputrange.The∗∗PW441−10∗∗’shigh−temperaturetolerance(−10°Cto60°C)keptitrunningsmoothlyduringheatwaves,whileits24VDC/10Aoutputreliablypowered120+sensorsandvalvesintheunit.Within6months,shutdownsceased,andtheplantreducedenergycostsby8

900,000 annually.​

Parameter:​

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Main Parameters​

Value/Description​

Product Model​

YOKOGAWA PW441-10​

Manufacturer​

Yokogawa Electric Corporation​

Product Category​

Industrial Switch-Mode Power Supply Module​

Input Voltage Range​

85-264V AC(50/60Hz)–Compatible with global industrial grids​

Output Voltage​

24V DC(±1%precision at full load)–Stable for sensitive devices​

Rated Output Current​

10A–Supports high-load systems(e.g.,multiple PLCs/sensors)​

Output Power​

240W(24V DC×10A)–Meets large-scale automation power needs​

Ripple&Noise​

≤50mV p-p(20MHz bandwidth)–Safe for precision sensors/analyzers​

Conversion Efficiency​

≥90%(full load,220V AC input)–Reduces energy waste​

Operating Temperature​

-10°C to 60°C–Withstands hot factories&cool outdoor cabinets​

Storage Temperature​

-20°C to 70°C–Suitable for long-term inventory in harsh warehouses​

Protection Functions​

Over-voltage(27-30V DC),over-current(11-12A),short-circuit(auto-recovery),over-temperature(75°C±5°C)​

Protection Rating​

IP20(module body);IP40(with optional protective cover)–Dust-resistant for cabinet installations​

Certifications​

ATEX(Ex II 3G Ex nA IIC T4 Ga),IECEx,CE,UL 61010–Safe for hazardous areas​

Installation Method​

DIN 35mm rail-mounted–Saves space;easy retrofitting​

Dimensions(L×W×H)​

150mm×90mm×60mm–Compact for tight cabinet layouts​

Weight​

0.7kg–Lightweight for easy handling​

Compatibility​

Yokogawa CENTUM VP DCS,FA-M3 PLC,third-party automation systems(e.g.,Siemens S7-1200)​

EMC Compliance​

IEC 61000-6-2(Class B radiation,Class 3 immunity)–Resists electromagnetic interference​

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Technical Principles and Innovative Values:​

Innovation Point 1:Wide Input&Global Adaptability​

Unlike standard power supplies limited to 220V or 110V AC,the YOKOGAWA PW441-10 uses a wide-range rectifier circuit to accept 85-264V AC.This eliminates the need for voltage switches,making it ideal for multinational plants(e.g.,110V AC in the US,220V AC in China).A global chemical company with sites in 5 countries reported a 40%reduction in spare part inventory after standardizing on the PW441-10—no more region-specific power supplies.​

Innovation Point 2:Low Ripple&Sensitive Device Protection​

The PW441-10 adopts a two-stage filtering design,achieving≤50mV p-p ripple—30%lower than comparable modules(≥70mV p-p).A pharmaceutical plant using the module to power HPLC(High-Performance Liquid Chromatography)sensors found it eliminated signal noise,reducing test data deviations from 2%to 0.5%—critical for meeting FDA compliance.This precision also extended sensor lifespan by 50%,cutting replacement costs.​

Innovation Point 3:Rugged Design&Hazardous Area Compatibility​

The module’s-10°C to 60°C operating range and ATEX certification set it apart from consumer-grade power supplies.An offshore oil platform in the North Sea deployed the PW441-10 in a Zone 2 hazardous area:it operated flawlessly in 95%humidity and salt spray for 2 years,while non-certified modules failed every 6 months.The platform saved$200,000 in maintenance and replacement costs.​

Application Cases and Industry Value:​

Case 1:Power Plant Boiler Control System​

A coal-fired power plant in South Korea used YOKOGAWA PW441-10 modules to power its boiler’s temperature/pressure sensors and CENTUM VP DCS I/O cards.The module’s wide input range handled voltage dips(from 220V AC to 90V AC)during peak power demand,preventing sensor shutdowns that previously caused boiler temperature fluctuations.The PW441-10’s over-temperature protection also avoided damage during a cabinet cooling fan failure—saving$80,000 in sensor replacement costs.Post-installation,boiler efficiency improved by 2%,reducing annual coal consumption by 1,500 tons.​

Case 2:Food Processing Line Automation​

A European dairy plant deployed YOKOGAWA PW441-10 modules to power 80+conveyor belt motors,temperature controllers,and quality inspection cameras.The module’s 10A output eliminated the need for multiple smaller power supplies,reducing cabinet space by 30%.Its low ripple(≤50mV p-p)ensured consistent camera image quality,cutting product rejection rates from 3%to 0.8%.During a factory-wide power surge(260V AC),the module’s over-voltage protection triggered instantly,protecting$50,000 in automation equipment.​

Related Product Combination Solutions:​

Yokogawa CENTUM VP DCS–Central control system–Pairs with PW441-10 for seamless power and data integration.​

Yokogawa FA-M3 PLC–Programmable controller–Powered by PW441-10 for machine automation.​

Yokogawa UT35A Temperature Transmitter–PT100-based sensor–Calibrated for PW441-10’s stable 24V DC output.​

Yokogawa IP40 Protective Cover(PW-CV01)–Weatherproof housing–Shields PW441-10 in dusty/wet environments(e.g.,bakeries).​

Yokogawa Redundancy Module(PW-RM02)–Enables dual PW441-10 parallel operation–Ensures 99.999%power availability for critical systems.​

Yokogawa AC Surge Protector(SP-220)–Installed upstream of PW441-10–Protects against grid surges(e.g.,lightning).​

Schneider Electric Modbus Gateway–Extends PW441-10’s compatibility to third-party SCADA systems(e.g.,Rockwell FactoryTalk).​

Yokogawa Power Monitoring Software(PM-100)–Tracks PW441-10’s load,efficiency,and fault history–Enables predictive maintenance.​

Installation,Maintenance,and Full-Cycle Support:​

Installation&Commissioning​

The YOKOGAWA PW441-10 installs in 15 minutes:snap it onto a DIN 35mm rail,connect AC input(L/N/PE)and DC output(positive/negative)via color-coded terminals,and power on.No specialized tools are needed—Yokogawa provides a clear wiring diagram to avoid polarity errors.For hazardous area installation,the module’s ATEX certification allows direct mounting in Zone 2 areas(with optional flameproof enclosures for Zone 1).Commissioning involves verifying output voltage(24V DC±1%)with a multimeter—completed in<5 minutes.​

Maintenance&Fault Handling​

Routine maintenance is minimal:every 6 months,inspect terminals for tightness and clean the module’s ventilation slots(if in dusty environments).The PW441-10’s self-diagnostics alert users to issues via LED indicators(e.g.,red light for over-current,yellow for over-temperature).Most faults are resolved quickly:a short-circuit triggers auto-recovery once the fault is fixed,while an over-temperature issue is resolved by improving cabinet ventilation.Yokogawa’s remote monitoring software(PM-100)can also send email alerts for proactive troubleshooting.​

Full-Cycle Support​

Yokogawa offers a 3-year warranty for the PW441-10,covering parts,labor,and factory calibration.For large deployments,Yokogawa provides on-site training to teach teams installation,maintenance,and fault diagnosis.Spare modules are stocked in 12 global warehouses,ensuring 48-hour delivery for emergencies.Yokogawa also offers annual calibration services to maintain output precision(±1%)—critical for meeting ISO 9001 and industry-specific standards(e.g.,API for oil&gas).​

The YOKOGAWA PW441-10 isn’t just a power supply—it’s a reliable partner for industrial automation.Whether you’re powering a complex DCS,sensitive sensors,or high-load motors,this module delivers the stability,efficiency,and durability you need to minimize downtime and maximize productivity.Contact us today to design a customized power solution centered on the YOKOGAWA PW441-10,tailored to your industry’s unique challenges and performance goals.

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