R851B-8 | Step controller, 8 stages (AC/DC isolated outputs) with vernier output for boilers | Viconics

Step controller, 8 stages (AC/DC isolated outputs) with vernier output for boilers

The Viconics R851V series step controller is designed for cost effective, precise modulation of multi-stage control application. A common application is a multi step electric duct heater. An integrated vernier control output will give a precise and full modulation of the load from 0 to 100% of the total capacity.