Product Overview
The PW402 is a high-reliability power supply module designed for Yokogawa CENTUM Field Control Stations (FCS). It converts AC mains power into regulated DC voltages required by the internal bus and I/O modules. Available in multiple configurations, including the PW402-S2 variant, this module is engineered for heavy-duty industrial operation.
With high-current output, precise regulation, and robust electrical protection, the PW402 ensures continuous and stable operation even during significant electrical transients, making it a critical component for large-scale process automation.
Technical Specifications
| Item | Description |
|---|---|
| Model Number | PW402-S2 |
| Input Voltage | Auto-sensing or selectable: 100–120 V AC / 220–240 V AC |
| Input Frequency | 50 / 60 Hz |
| Output Voltages | High-power: +12 V DC & +24 V DC; PW402-S2: specialized 24 V DC |
| Redundancy Support | Dual-redundant parallel operation |
| Isolation Resistance | ≥100 MΩ at 500 V DC |
| Dielectric Strength | 1500 V AC, 1 minute between power terminals and ground |
| Cooling | Forced-air internal fan |
| Dimensions (W × H × D) | 5.1 cm × 22.9 cm × 20.3 cm |
| Weight | 2.0 kg |
Application & Integration
-
Redundant Power Nests: Two modules can operate in parallel; if one fails, the second maintains continuous power
-
System Protection: Integrated over-current and over-voltage protection safeguards CPUs and I/O modules
-
Field Excitation: Provides 24 V DC loop power for 4–20 mA transmitters and actuators
-
Industrial Integration: Compatible with CENTUM CS 3000 and older CENTUM VP architectures
FAQ
What is the difference between PW402 and PW402-S2?
The standard PW402 is a multi-voltage high-capacity module (+12V / +24V), whereas the PW402-S2 is optimized for 24 V DC applications with updated internal circuitry (Style S2) for improved efficiency and reduced heat generation.
Does this module require a cooling fan?
Yes. The PW402’s high power density and continuous-duty design require built-in forced-air cooling to maintain safe operating temperatures.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
Recently Viewed
Express Shipping
Extensive Inventory
Quality Assurance
