NFO Sine Wave Frequency Inverter
Controls asynchronous motors-used where personal safety, EMC guidelines, quiet switching noise and no harmonics are key needs.
The patented technology offers the possibility of using residual current circuit breakers (FI) in the motor cables. Thereby no filters, chokes or shielded cables are necessary for operation. The purely sinusoidal output voltage increases motor life (no bearing currents).
Advantages
- Easy installation - no shielded cables required, no additional components such as filters/chokes, unlimited motor cable length (consider conductor resistance)
- High personal safety - no bearing currents, no ground currents, operation on RCD (residual current device)
- Quiet operation - no electromagnetic interference, no disturbing switching noise, operation in residential environment possible
Technical Data
| Ausführung | High personal safety, quiet operation |
| Voltage and power range |
3 x 230 V, 0.37-7.5 kW 3 x 380-440 V, 0.37-22 kW |
| Protection class | IP21 / IP54 |
| Housing protection type | IP20, IP45 and IP55 (see product overview) |
| Supply voltage |
3 x 230 V -10%/+10%, 50/60 Hz 3 x 380 V to 440 V -10%/+10%, 50/60 Hz |
Areas of application
- Residential and Commercial (HVAC)
- Industry (HVAC and machinery)
- Agriculture and equestrian facilities (vacuum pumps, machinery, etc.)
- Warehouses and cold storage (HVAC)
- Laboratory, testing and research facilities (HVAC)
- Shipping (HVAC)
- Radio and television studios (HVAC)
- Universities and schools (HVAC)
- Hospitals (HVAC)
- Theater and concert halls (HVAC and machinery)
- Waterworks and pump houses (pumps)
- OEM - integration into products of your company .
Comparison of normal frequency inverter and sine frequency inverter
Sound of NFO sine wave frequency converter
Noise of a commercial PWM frequency converter
Product overview
| Rated power (kW) | |
| NFO Optimal IP55 | 0.37 - 2.2 kW |
| NFO Sinus IP21 | 7.5 - 22 kW |
| NFO Sinus IP54 | 4.0 - 7.5 kW |
Our services
- Support in project planning and design of devices
- Creation of customer-specific parameter sets for series devices
- Preparameterization of individual devices according to customer specifications
- Commissioning and optimization of equipment on site
- Service and repair work
- Telephone support for technical questions
- 24/7 emergency number for immediate response in case of plant shutdown
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