The Yokogawa PW482-11 is a critical infrastructure component designed to power safety control units and node units. Primarily, this module functions as a direct replacement for the legacy PW482 model, offering updated electronic components for better longevity. For instance, the unit handles a wide input voltage range of 220 to 240 V AC with a ± 10 % tolerance. Furthermore, the hardware is engineered to maintain system uptime in high-demand environments with a maximum power consumption of 230 VA. Additionally, the module utilizes an exclusive connector interface to ensure secure electrical contact within the Yokogawa backplane. Therefore, the PW482-11 is essential for maintaining the safety integrity of the ProSafe-RS platform. Finally, its lightweight design at 1 kg allows for easy hot-swapping in redundant power configurations.
The PW482-11 utilizes high-efficiency switching technology to convert line voltage into the regulated DC power required by I/O modules. Specifically, the input frequency is rated for both 50 Hz and 60 Hz with a ± 3 Hz deviation allowance. Meanwhile, the internal circuitry provides robust over-voltage and over-current protection to prevent damage to downstream safety cards. Moreover, this power module is typically installed in pairs to provide dual-redundancy within the safety control rack. Specifically, the "11" suffix indicates the latest hardware revision, ensuring compatibility with modern ProSafe-RS firmware versions. Furthermore, the unit manages heat dissipation effectively, even when operating at its peak 230 VA load. Consequently, the PW482-11 provides the stable power foundation necessary for SIL3 safety applications.
The physical build of the PW482-11 emphasizes compact efficiency and ease of maintenance in industrial control cabinets. For instance, the module features a ruggedized outer shell that protects against electromagnetic interference and physical handling. Additionally, the exclusive connector on the rear of the unit is designed for high-cycle insertion, facilitating rapid replacement during maintenance windows. Specifically, the weight of approximately 1 kg makes it significantly more manageable than older, heavier power transformers. Meanwhile, the module is designed for vertical mounting within standard Yokogawa racks to promote natural convective cooling. Furthermore, the robust internal filtering ensures that noise from the 220V mains does not enter the safety bus. Therefore, the PW482-11 is a dependable choice for refineries, power plants, and chemical processing facilities.
Installing the PW482-11 requires following a strict sequence to ensure the safety system remains powered during the upgrade or replacement. First, if you are installing into a redundant system, confirm that the partner power supply is healthy and the "POWER" LED is green. Specifically, slide the new PW482-11 into the designated power slot until the exclusive connector clicks firmly into the backplane. Next, tighten the front-panel captive screws to ensure the module is grounded and cannot vibrate loose. Furthermore, connect the AC power cord to the dedicated input terminal on the rack, ensuring a solid 220-240V source. Specifically, verify that the front-panel LED illuminates, indicating that the internal DC rails are within the correct operating range. Finally, use the system management software to clear any power supply fault alarms.
1 x Yokogawa PW482-11 Power Supply Module
1 x Hardware Installation Reference Sheet
Protective Anti-static Packaging
Shipping Method: Fedex, UPS, DHL
1. Is the PW482-11 a direct replacement for the older PW482? Yes, the PW482-11 is the official replacement model and is fully compatible with racks designed for the original PW482.
2. Can this module handle both 50Hz and 60Hz power grids? Absolutely, the module is rated for 50/60 Hz with a tolerance of ± 3 Hz, making it suitable for global deployment.
3. What happens if the input voltage drops below 200V? The PW482-11 is rated for 220-240V ± 10 %; if voltage falls outside this range, the module may trigger a power fault alarm.
4. How many PW482-11 modules are needed for a redundant setup? For a dual-redundant configuration, you must install two PW482-11 modules in the designated power slots of the rack.
5. Does the module come with a standard power plug? No, the module connects via an exclusive backplane connector; the AC input is typically wired to the rack's power distribution terminal.
| Brand Name | Yokogawa Electric |
| Model No. | SEC402-51 |
| Product Type | Power Supply Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
