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    Rotary Actuators

    MSxx10 88 lb-in. and MSxx20 175 lb-in. Spring Return Direct Coupled Actuators

    Discontinued

    MS3110, MS3120, MS4110, MS4120, MS7510, MS7520, MS8110, MS8120 Spring Return Direct Coupled Actuators (DCA) are used within heating, ventilating, and air-conditioning (HVAC) systems.

    Overview
    This product has been discontinued.
    Honeywell will provide product support until

    MS3110, MS3120, MS4110, MS4120, MS7510, MS7520, MS8110, MS8120 Spring Return Direct Coupled Actuators (DCA) are used within heating, ventilating, and air-conditioning (HVAC) systems. They can drive a variety of quarter-turn, final control elements requiring spring return fail-safe operation.

    Applications include volume control dampers, mounted directly to the drive shaft or remotely (with the use of accessory hardware), quarter-turn rotary valves, such as ball or butterfly valves mounted directly to the drive shaft and linear stroke globe or cage valves mounted with linkages to provide linear actuation.

    Features & Benefits:
    • Brushless DC submotor with electronic stall protection for floating/modulating models
    • Floating/Modulating models can provide twoposition (SPST) control
    • Brush DC submotor with electronic stall protection for two-position models
    • Self-centering shaft adapter (shaft coupling) for wide range of shaft sizes
    • Access cover to facilitate connectivity
    • Metal housing with built-in mechanical end limits
    • Spring return direction field-selectable
    • Shaft position indicator and scale
    • Manual winding capability with locking function
    • Sylk-enabled models available
    Certifications:
    • UL (cUL) listed
    • Plenum-rated per UL2043
    • CE 89/336/ECC, 73/23/EEC
    • C-Tick N314