DMPR-RS306 Johnson Controls Damper Control Accessory

Part number DMPR-RS306 from Johnson Controls, listed in Electric Actuators. KKM Solutions quotes this part with pricing and availability confirmed per order.

Overview The Johnson Controls DMPR-RS306 is a heat-activated fusible link designed as a critical safety accessory for damper control systems in HVAC installations. Serving as a reliable passive failsafe device, it holds fire and smoke damper blades in the open position during normal operation. In the event of a fire, the link automatically activates without requiring electrical power or human intervention, causing the damper to close tightly to seal off ductwork and limit the spread of fire and smoke. Features Automatic Failsafe Activation: Operates entirely on physical principles, melting or breaking under high temperatures to initiate immediate damper closure. Bi-Metal Construction: Comprised of durable brass components securely bonded together by a heat-sensitive solder alloy designed to withstand operational stresses. Style A Versatility: Engineered in an A-style configuration, providing excellent adaptation for standard fire protection systems in commercial buildings. Mechanical Reliability: Provides a completely power-independent safety mechanism that remains fully operational even during total system power losses. Specifications Brand: Johnson Controls Model/Part Number: DMPR-RS306 Component Type: Fusible Link (Style A) Activation Temperature: 212°F (100°C) Application Design: Fire and smoke damper control systems Weight: 1.0 lb Applications Fire and Smoke Dampers: Integrates directly into commercial ventilation ductwork to trigger automatic damper closure when local temperatures reach critical thresholds. HVAC Safety Control: Installed across building automation networks to partition specific zones and contain hazards at their origin. High-Ambient Environments: Well-suited for deployment in facility spaces with elevated normal temperatures, such as industrial kitchens or boiler rooms, preventing false alarms while ensuring high-heat protection.