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

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.

• 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

• UL (cUL) listed
• Plenum-rated per UL2043
• CE 89/336/ECC, 73/23/EEC
• C-Tick N314