Belimo NR24A-SR Modulating Rotary Actuator For Ball Valves - 10 Nm, AC/DC 24 V, 2...10 V, 90 s, IP54
Specifications
Details
Product Overview
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High-performance rotary actuator for precision control of ball valves
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Modulating control with position feedback for integration into HVAC and automation systems
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Designed for silent, accurate, and efficient operation in demanding environments
Key Features
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Torque Output: 10 Nm
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Control Signal: Modulating 2...10 V
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Position Feedback: 2...10 V (max. 1 mA)
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Manual Override: Push-button with lock function
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Mechanical Position Indicator: Pluggable for easy viewing
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Low Noise Operation: Only 35 dB(A)
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Maintenance-Free Design for long-term reliability
Electrical Specifications
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Nominal Voltage: AC/DC 24 V
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Voltage Range: AC 19.2–28.8 V / DC 19.2–28.8 V
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Frequency: 50/60 Hz
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Power Consumption:
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In operation: 2.5 W
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At rest: 0.4 W
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For wire sizing: 5 VA
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Wiring: 1 m cable, 4× 0.75 mm²
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Input Impedance: 100 kΩ
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Parallel Operation: Supported (observe limits)
Performance Data
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Running Time (Motor): 90 s / 90°
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Position Accuracy: ±5%
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Operating Range (Y): 2...10 V
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Feedback Signal (U): 2...10 V
Environmental & Safety Information
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Ambient Temperature: -30 to +50°C [-22 to +122°F]
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Storage Temperature: -40 to +80°C [-40 to +176°F]
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Humidity Tolerance: Max. 95% RH, non-condensing
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Degree of Protection:
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IP54 (IEC/EN)
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NEMA 2 / UL Enclosure Type 2
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Protection Class: III (SELV – Safety Extra-Low Voltage)
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Pollution Degree: 3
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Rated Impulse Voltage: 0.8 kV
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Service Life: Maintenance-free
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Weight: 0.75 kg
Certifications & Compliance
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CE Compliant: EMC Directive 2014/30/EU
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UL Approval: cULus (UL60730-1A, UL60730-2-14, CAN/CSA E60730-1)
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Standards: IEC/EN 60730-1 and 60730-2-14
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Type of Action: Type 1
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UL Marking: May vary by production site (all units UL-compliant)
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