Description
The Schneider Electric (Barber Colman) R820-643 is a robust SCR (Silicon Controlled Rectifier) power control engineered for demanding three-phase load management applications in commercial and industrial HVAC systems. Designed to deliver precise, reliable power regulation, this unit is an ideal solution for electric heating elements, infrared heaters, and other resistive or inductive loads requiring accurate power control.
Key Features
- Wide operating voltage range: 24–600 Vac for broad system compatibility
- Three-phase power control for balanced load management
- 45 Amp current rating for medium-to-heavy duty applications
- Flexible installation: surface mount or in-panel mounting options
- SCR (Silicon Controlled Rectifier) technology for smooth, stepless power regulation
- Designed for use with resistive and compatible inductive loads
- Durable construction suited for commercial and industrial environments
Specifications
- SKU: R820-643
- Brand: Schneider Electric (Barber Colman)
- Voltage Range: 24–600 Vac
- Phase: 3-Phase
- Current Rating: 45 Amps
- Mounting: Surface or In-Panel
- Control Type: SCR Power Control
Applications
- Commercial electric heating systems
- Infrared and radiant heating elements
- Industrial process heating
- HVAC power control panels
- Building automation and energy management systems
The R820-643 continues the legacy of Barber Colman’s trusted power control engineering, now backed by Schneider Electric’s global expertise. Its versatile mounting configuration and wide voltage range make it a go-to solution for contractors and engineers specifying reliable three-phase power control in commercial HVAC and building automation projects.
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