Field Instruments

General

Damper actuator for adjusting dampers in technical building installations

Air damper size up to approx. 2 m²

Torque motor 10 Nm

Nominal voltage AC 100...240 V

Features

• Simple direct mounting on the damper shaft with a universal shaft clamp, supplied with an anti rotation device to prevent the actuator from rotating.
• Manual override with push-button possible (the gear train is disengaged for as long as the button is pressed or remains locked).
• Adjustable angle of rotation with mechanical end stops.
• The actuator is overload protected, requires no limit switches and automatically stops when the end stop is reached.

Specifications

• Make:  Belimo
• Model: NM24A
• Voltage AC/DC: AC/DC 24 V
• Connection Supply Control: Cable 1 m, 3 x 0.75 mm²
• Torque: 10 Nm
• Control type: Open/close | 3-point
• Direction Of Motion Motor: selectable with switch 0 (ccw rotation) / 1 (cw rotation)
• Manual override: With push-button, can be locked
• Angle of rotation: 95
• Running time (motor): 150 s / 90°
• Mechanical interface: Universal shaft clamp 8...26.7 mm
• Protection category: IP54
• Degree Of Protection NEMA: NEMA 2
• Enclosure Type: UL Enclosure Type 2
• Ambient Temperature: -30...50°C [-22...122°F]