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The Honeywell MS3103J1221 is a direct-coupled damper actuator intended for spring return applications. It controls dampers through modulating or Sylk BUS communication, operating on twenty-four VAC with a torque of twenty-seven pound-inches. This actuator comes with a simplified shaft adapter and an integral conduit connector. It is ideal for rooftop units, economizers, compact control dampers, and control valve applications. Safety features include overload protection, and it can mount directly to both round and square shafts.
The Honeywell MS3103J1221 actuator is essential for effective damper control in various HVAC applications, ensuring reliable performance and safety.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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