
NVCB 7000
Motorised 2-way and 3-way ball valves for HVAC systems. Forged brass body, PN20 and sizes DN15 to DN50.
View specifications ↗5 Nm actuator for DN15 / DN20 / DN25 / DN32 ball valves. 2-point and 3-point control, with 24 V and 230 V versions.

Includes a fixed 9 mm square shaft, selectable rotation direction and a 1-metre cable. Available in low-neck (LN) and high-neck (HN) versions. S1 versions include one adjustable SPDT auxiliary switch.
| Torque | 5 Nm |
|---|---|
| Valve sizes | DN15 / DN20 / DN25 / DN32 |
| Control | 2-point and 3-point |
| Power supply | 24 VAC/DC ±10% or 230 VAC ±10%, depending on model |
| Running time | 70–100 s |
| Shaft | Fixed 9 mm square |
| Rotation angle | 90° (95° mechanical limit) |
| Protection rating | IP54 |
| Ambient temperature | −20 to 50 °C |
| Power consumption: running / end position | 4 W / 2 W |
| Model | Power supply | Running time | Auxiliary switches |
|---|---|---|---|
| NABA 1-05 LN | 24 VAC/DC | 70–100 s | No auxiliary switches |
| NABA 1-05S1 LN | 24 VAC/DC | 70–100 s | 1 × adjustable SPDT |
| NABA 2-05 LN | 230 VAC | 70–100 s | No auxiliary switches |
| NABA 2-05S1 LN | 230 VAC | 70–100 s | 1 × adjustable SPDT |
| NABA 1-05 HN | 24 VAC/DC | 70–100 s | No auxiliary switches |
| NABA 1-05S1 HN | 24 VAC/DC | 70–100 s | 1 × adjustable SPDT |
| NABA 2-05 HN | 230 VAC | 70–100 s | No auxiliary switches |
| NABA 2-05S1 HN | 230 VAC | 70–100 s | 1 × adjustable SPDT |
Check the exact reference, mounting and close-off pressure in the documentation before selecting the assembly.
Original document: dimensions, model selection and installation information.
Summary based on the supplied documentation. Check the version, mounting and application requirements in the original datasheet. Product appearance may vary.

Motorised 2-way and 3-way ball valves for HVAC systems. Forged brass body, PN20 and sizes DN15 to DN50.
View specifications ↗