Belimo NVKC24A-SZ-TPC - analog linear actuator for globe valves

Belimo NVKC24A-SZ-TPC actuator

Analog linear actuator for 2- and 3-way globe valves. During normal operation, it positions the valve according to the control signal and charges the built-in capacitors. If the power supply fails, energy stored in the capacitors enables the valve to move to the specified safety position.

Key features and specifications

• Thrust: 1000 N; stroke: 20 mm.
• Rated voltage: AC/DC 24 V; frequency: 50/60 Hz.
• Operating range Y: 0.5...10 V; feedback signal U: 0.5...10 V.
• Motor running time: 35 s / 20 mm; safety function operating time: 35 s / 20 mm.
• Safety position (POP) set using the dial within a range of 0...100%, in increments of 10%; factory power reserve time (PF): 2 s.
• Power consumption during operation: 4.5 W; at rest: 1.5 W; rated power: 9 VA.
• Power / control connection: Terminals with 1 m cable, 4x 0.75 mm², 4 mm² terminal.
• IEC/EN enclosure protection category: IP54; NEMA/UL degree of protection: NEMA 2.
• Manual override using a push button; mechanical position indicator, stroke 5...20 mm.

The actuator is intended for stationary heating, ventilation and air-conditioning systems. The capacitors in the supplied unit are fully discharged and require charging for approximately 20 s before commissioning.