Belimo NR24A-SR Modulating Rotary Actuator For Ball Valves - 10 Nm, AC/DC 24 V, 2...10 V, 90 s, IP54

Belimo NR24A-SR Modulating Rotary Actuator For Ball Valves - 10 Nm, AC/DC 24 V, 2...10 V, 90 s, IP54

Category: Actuator

Specifications
Details

Product Overview

  • High-performance rotary actuator for precision control of ball valves

  • Modulating control with position feedback for integration into HVAC and automation systems

  • Designed for silent, accurate, and efficient operation in demanding environments

Key Features

  • Torque Output: 10 Nm

  • Control Signal: Modulating 2...10 V

  • Position Feedback: 2...10 V (max. 1 mA)

  • Manual Override: Push-button with lock function

  • Mechanical Position Indicator: Pluggable for easy viewing

  • Low Noise Operation: Only 35 dB(A)

  • Maintenance-Free Design for long-term reliability

Electrical Specifications

  • Nominal Voltage: AC/DC 24 V

  • Voltage Range: AC 19.2–28.8 V / DC 19.2–28.8 V

  • Frequency: 50/60 Hz

  • Power Consumption:

    • In operation: 2.5 W

    • At rest: 0.4 W

    • For wire sizing: 5 VA

  • Wiring: 1 m cable, 4× 0.75 mm²

  • Input Impedance: 100 kΩ

  • Parallel Operation: Supported (observe limits)

Performance Data

  • Running Time (Motor): 90 s / 90°

  • Position Accuracy: ±5%

  • Operating Range (Y): 2...10 V

  • Feedback Signal (U): 2...10 V

Environmental & Safety Information

  • Ambient Temperature: -30 to +50°C [-22 to +122°F]

  • Storage Temperature: -40 to +80°C [-40 to +176°F]

  • Humidity Tolerance: Max. 95% RH, non-condensing

  • Degree of Protection:

    • IP54 (IEC/EN)

    • NEMA 2 / UL Enclosure Type 2

  • Protection Class: III (SELV – Safety Extra-Low Voltage)

  • Pollution Degree: 3

  • Rated Impulse Voltage: 0.8 kV

  • Service Life: Maintenance-free

  • Weight: 0.75 kg

Certifications & Compliance

  • CE Compliant: EMC Directive 2014/30/EU

  • UL Approval: cULus (UL60730-1A, UL60730-2-14, CAN/CSA E60730-1)

  • Standards: IEC/EN 60730-1 and 60730-2-14

  • Type of Action: Type 1

  • UL Marking: May vary by production site (all units UL-compliant)


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