Product Details
The Yokogawa PW481-10, also cataloged as the PW481 Power Supply Module, operates as a dedicated hardware component for 100-120 V AC to 24 V DC power conversion and rail voltage distribution within Yokogawa automation system networks.
Suffix Breakdown & Model Matrix
- PW481: Base model designating 100-120 V AC input to 24 V DC output power supply module.
- -10: Standard hardware revision code indicating basic non-explosion-proof configuration.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PW481-10 |
| Brand | Yokogawa |
| Origin | Japan |
| Input Voltage | 100-120 V AC, 50/60 Hz (+/-10%) |
| Output Voltage | 24 V DC |
| Output Current | 2.5 A |
| Mounting | DIN Rail |
| Status Visuals | Front-panel LED power status indicators |
| Weight | 1.04 kg (2.29 lbs) |
| Dimensions | 5.1 cm x 20.3 cm x 15.2 cm (2.0 in x 8.0 in x 6.0 in) |
| Operating Temp | -20 to 60 deg C |
| Power Consumption | 200 VA (Maximum) |
Yokogawa Rail Power Conditioning & DCS Channel-to-Channel Isolation
The power supply module steps down single-phase utility voltage to a regulated 24 V DC bus to energize downstream controllers, digital sensors, and field I/O modules. The internal transformer topology provides primary-to-secondary galvanic isolation, limiting ground loop coupling and shielding sensitive 4-20 mA HART loop protocol instruments and fieldbus communication buses from AC line transients and voltage fluctuations.
Frequently Asked Questions
Q: What input line tolerances apply to the PW481-10 module during AC mains fluctuations?
A: The module operates across an input range of 100-120 V AC at 50/60 Hz with an allowable voltage variance threshold of +/-10%.
Q: Does replacing a PW481-10 module disrupt adjacent DIN rail components?
A: No, the module unlatches directly from the DIN rail and disconnects via standard terminal interfaces without unmounting surrounding rail equipment.
Field Installation Guidelines
Mount the PW481-10 module onto a standard 35 mm DIN rail inside the enclosure, ensuring top and bottom ventilation clearances are maintained for natural convection cooling. Secure input AC power leads and output 24 V DC conductors to their respective screw terminals, applying proper wiring torque. Connect the earth terminal directly to the central cabinet grounding bar using a low-impedance copper strap to minimize high-frequency common-mode noise.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Batch vs Continuous Processing in Industrial Automation: Architectural Strategies for Control Engineers
Selecting the proper control architecture remains a pivotal decision when designing industrial automation systems. Automation engineers must evaluate whether a batch or continuous process model best fits their production requirements. This fundamental choice influences PLC and DCS programming, hardware redundancy, sensor selection, and overall factory automation layouts.
Demystifying Signal Isolators: Operating Principles, Architectural Types, and Industrial Applications
Industrial automation systems rely on pristine analog signal transmission across complex control loops. Instrument technicians and system integrators frequently deploy signal isolators to maintain signal integrity between field sensors and control platforms. Eliminating electrical noise, ground loops, and high-voltage transients protects delicate PLC, DCS, and SCADA input channels from permanent damage.
Demystifying Industrial Control Systems: Comparing PLC, DCS, RTU, SCADA, and PAC
Modern factory automation relies on distinct control architectures to manage complex process environments efficiently. Control engineers often evaluate PLC, DCS, RTU, SCADA, and PAC platforms when designing industrial infrastructure. Understanding the functional boundaries of each technology ensures optimal system performance, high availability, and long-term cost efficiency.