Product Overview
The Allen-Bradley 81001-355-71-R is a heavy-duty Silicon Controlled Rectifier (SCR) assembly designed by Rockwell Automation for industrial power control. This solid-state semiconductor module provides precise power switching and phase control within large-scale automation frameworks.
Functional Operation
This solid-state power module regulates high electrical currents by utilizing controlled gate triggers. The device fundamentally manages heavy electrical loads rather than functioning as a standard low-power PLC relay. Consequently, the module efficiently drives industrial heating elements, power supplies, and large DC motor control circuits. The component works in tandem with broader Allen-Bradley control systems to ensure accurate power distribution. Furthermore, its rugged structural design guarantees consistent performance during continuous high-amperage operations.
Technical Characteristics and Environmental Resilience
Industrial applications subject components to harsh conditions. Therefore, Rockwell Automation engineers this SCR assembly to withstand intense electrical noise and mechanical vibrations. The module features integrated thermal management interfaces to dissipate heat during sustained operation. Consequently, this design minimizes system downtime and protects sensitive upstream PLC infrastructure from power surges.
Technical Specifications
- Brand: Allen-Bradley / Rockwell Automation
- Model Number: 81001-355-71-R
- Product Type: Silicon Controlled Rectifier (SCR) / Thyristor Module
- Application Compatibility: Industrial Power Control and Drive Systems
- Net Weight: 4.5 kg
- Physical Dimensions: 31.2 x 12.8 x 12.8 cm
- Country of Origin: United States
- Lifecycle Status: Discontinued legacy component (June 30, 2016)
- Harmonized Tariff Code (HS Code): 8537101190
- Minimum Order Quantity (MOQ): 1 unit
- Primary Function: High-current phase control and electrical rectification
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