Belimo NVC24A-SZ-TPC - linear actuator for globe valves

Belimo NVC24A-SZ-TPC

Linear actuator with modulating control, designed for 2-way and 3-way globe valves. The Y control signal determines the actuator position, while the U feedback signal enables electrical indication of its position.

Key features and specifications

• Actuator force: 1000 N; stroke: 20 mm.
• Rated voltage: AC/DC 24 V; rated voltage frequency: 50/60 Hz.
• Y operating range: 0.5...10 V; U position feedback signal: 0.5...10 V, max. 0.5 mA.
• Motor running time: 35 s / 20 mm; positioning accuracy: ±5%.
• Power consumption during operation: 3.5 W; in the rest position: 1.5 W; sizing power: 5.5 VA.
• Power and control connection: terminals with 1 m cable, 4x 0.75 mm² (terminal 4 mm²).
• Protection rating: IP54; NEMA 2; housing: UL Enclosure Type 2.
• Ambient temperature: 0...50°C.

Operation and installation

The actuator mounts directly on the valve using clamping jaws. It can be rotated 360° on the valve neck. Manual adjustment is possible using a button that can be locked. The stroke is mechanically indicated over the 5...20 mm range.

Adaptation takes place automatically when power is first applied; it can also be started using the button. A switch allows the direction of movement to be changed. The actuator has overload protection and stops automatically when the end stop is reached.