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R820-PCB-A01 | R820 Solid State Relay, 24 VAC Electronic PCB, 1 or 3 phases; replaces 021-0474 | Viconics

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Multi-signal input board for SCRs; replaces 021-0474

Replacement Circuit Board For R820-REV2

Description

The Viconics R820 series SCR power controls are designed for cost effective, precise modulation of electric loads for most electric heating applications. (Applicable on resistive loads only) The R820 series consists of SCR’s power controls, c/w factory assembled heatsink for surface or in-panel mounting.