Field Instruments

General

MS31XX, MS41XX, MS71XX, MS75XX, MS81XX 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.

Features

• Brushless DC sub motor with electronic stall protection for floating/modulating models.
• Floating/Modulating models can provide two position (SPST) control.
• Brush DC sub motor 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.
• UL (cUL) listed.
• All Models are plenum-rated per UL2043.
• Models available with 3-foot, 18 AWG color-coded cable.
• Sylk-enabled models available.

Specifications

• Make: Honeywell
• Model: MS7520A2205
• Torque: 20 Nm
• Supply Voltage: 24 Vac/dc.
• Stroke: 95° ±3°, mechanically limited
• Control Type: Floating, Modulating, Two-Position (SPST)
• Feedback Signal: Yes
• Minimum Damper Shaft Length: 1 in. (25 mm); 3 in.(76 mm) recommended.
• Aux Switches: Yes
• Humidity Ratings: 5% to 95% R.H., Non-Condensing

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Phone: +94718555888 Email: info@fieldinstruments.lk