N8 Rotary and part-turn actuator
To increase the torque of the N8 series solution, an additional gearbox is added to the N1 to N4 A series actuators. This increases the available torque range to 500 Nm.
The numerous options and actuators based on the electrical design common to series N1 to N4 ensure the N series is the optimum solution for applications in process plant engineering.
The design of the housing made of die-cast aluminium and zinc in combination with permanently lubricated gearing with sintered-bronze bearing bushes ensures their suitability for use in a harsh operating environment.
Use of an (optional) electronic position controller ESR-N can make it easier to integrate the rotary and part-turn actuator into the controls of complex systems.
![[Translate to English:] N8 Dreh- und Schwenkantrieb](/fileadmin/content/produkte/Dreh_Schwenkantriebe/N8_Dreh-und_Schwenkantrieb_600.png)
Motor
- Single-phase AC synchronous motor with permanent magnets, reversible 230 V ± 10%, 50/60 Hz ± 5% (data sheet N8)
- 100% duty cycle as standard
- Short start/stop times
- Insulation class B to VDE 0530
- Synchronous motors maintain speed and positioning time irrespective of the load
- Tropical insulation
- Options:
- Three-phase motor (data sheet N8 DS)
- DC motor (data sheet N8 DC)
- Custom voltages
- Custom frequencies
Gearbox
- Spur gearing with straight-toothed steel gears
- Rugged, maintenance-free
- Permanently lubricated gears
- Self-lubricating sintered bronze bearings
- Encapsulated version, operates in any position
Supplementary gearbox
- Planetary gearbox with hardened gears
- Permanently lubricated gears
- Self-lubricating sintered bronze bearings and ball bearings
- Housing made of aluminium
Output shaft
- Output shaft with square socket WAF 22 mm (F10 DIN ISO 5211)
- Diameter 36 mm with feather key
- Other output shafts on request
Electrical connection
- Connection terminals positioned centrally close to cable entry
- Screw-type terminals
- Two free slots to retrofit additional auxiliary position switches
- Retrofitting of extensions possible without any problems through additional PCB terminals
Controller
- Open/close signal
- Options:
- Additional potential-free contacts
- Electronic position controller ESR-N (integrated in the actuator or external)
- Potentiometer 200Ω … 10 kΩ
- Electromechanical emergency torque limit switch shuts off the motor if a blockage occurs
Ambient temperature
- -15 °C to +60 °C
- 0 °C to +60 °C when an electronic position controller ESR-N is used
- Options:
- Up to +80 °C, duty cycle S3-50%
- Down to -40 °C
