Product Description
Product Overview
The Allen-Bradley 81003-438-51-R is an SCR (Silicon Controlled Rectifier) Assembly designed for industrial automation applications within Rockwell Automation systems, specifically as a replacement part for medium voltage drives such as the PowerFlex 7000 series. Manufactured by Allen-Bradley (a Rockwell Automation brand), this module is a critical component in power control circuits, managing high-current rectification for efficient operation. It is built for durability and performance in demanding environments like manufacturing, power generation, and process industries. The “81003-438-51-R” is the specific part number, with the “-R” suffix indicating a revision of the original design.
Technical Specifications
The 81003-438-51-R has the following specifications based on supplier data from Radwell:
| Item | Specification |
|---|---|
| Model/Part Number | 81003-438-51-R |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Description | SCR Assembly, 815 Amp, SPGDB (Spring Gate Diode Bridge) |
| Series | PowerFlex 7000 Replacement Parts |
| Current Rating | 815 A |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Weight | 1 kg (2.2 lbs) |
Additional Details
The 81003-438-51-R includes the following additional information based on supplier documentation:
| Category | Details |
|---|---|
| Function | Manages high-current rectification in power control circuits |
| Mounting | Installed within drive rectifier assembly |
| Connectivity | Interfaces with PowerFlex 7000 power modules |
| Features | High current capacity, robust design |
| Certifications | Meets industrial standards (e.g., UL, CE) |
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