Belimo NVK24A-3-TPC - linear actuator for globe valves

Belimo NVK24A-3-TPC actuator

Actuator for 2- and 3-way globe valves. During operation, integrated capacitors store energy which, in the event of a power failure, moves the valve to the selected fail-safe position.

Key features and specifications

• Actuating force: 1000 N; stroke: 20 mm.
• Rated voltage: AC 24 V, 50/60 Hz; voltage range: AC 19.2...28.8 V.
• Control: 3-point.
• Motor running time: 150 s / 20 mm; time to the fail-safe position: 35 s / 20 mm.
• Fail-safe position adjustable with the POP knob: stem retracted or extended. Power fail hold time (PF): 2 s.
• Manual override by button and mechanical position indicator for a 5...20 mm stroke.
• Power consumption during operation: 3 W; at rest: 1.5 W; for cable sizing: 6 VA.
• Power and control connection: terminals with 1 m cable, 4x 0.75 mm², 4 mm² terminal.
• IEC/EN degree of protection: IP54; IEC/EN protection class: III, Safety Extra-Low Voltage (SELV).

The actuator is intended for stationary heating, ventilation and air-conditioning installations. Installation may only be carried out by authorised specialists.