Mains Chokes
Lenze ELN1 and EZAELN3 mains chokes connect upstream of the drive, smoothing harmonics and lowering the effective mains current across a 1.5 … 250 A range.
Specifications
- Series
- ELN1, EZAELN3
- Degree of protection
- IP00
- Mounting
- Control cabinet, wall or base; hanging horizontally or standing
- Connection
- Screw terminal (flat copper from 90 A)
- Vibration resistance
- Up to 1 g
- Operation
- 3K3 (–10 … +55 °C), derating 2.5 %/°C above +40 °C
- Storage
- 1K3 (–25 … +60 °C)
- Transport
- 2K3 (–25 … +70 °C)
- Installation altitude
- 0 … 4000 m (derating 5 %/1000 m above 1000 m)
A mains choke is an inductance connected into the supply cable upstream of the drive. It smooths the waveform of the mains current so that it becomes more sinusoidal, reducing system perturbation and saving energy. Because the effective mains current drops, the load on cables and fuses is lower in many cases as well. For high power ratings a mains choke is mandatory.
Lenze offers a suitably matched choke for every drive in its portfolio. The ELN1 series covers single-phase AC 230 V drives from 5 to 18 A, while the EZAELN3 series covers three-phase AC 400 V drives from 1.5 to 250 A.
The IP00 chokes are mounted in the control cabinet, either hanging horizontally or standing, on the wall or base. Connection is via screw terminals; types from 90 A upwards use flat copper connections.
Features
Less system perturbation
The choke smooths the mains current towards a sinusoidal shape and reduces harmonics.
Lower effective current
A reduced effective mains current lowers cable and fuse loading in many applications.
Matched to each drive
Lenze supplies an appropriately sized mains choke for every drive in its range.
Wide current range
ELN1 covers 5 … 18 A and EZAELN3 covers 1.5 … 250 A.
Flexible mounting
The chokes can be hung horizontally or stood upright on the cabinet wall or base.
Applications
- Drive cabinets with frequency inverters
- Mains input side of servo drives
- Plants where power quality matters
- Mains connection of high-power drives
Series comparison
| Series | Mains connection | Current range |
|---|---|---|
| ELN1 | 1 × AC 230 V | 5 … 18 A |
| EZAELN3 | 3 × AC 400 V | 1.5 … 250 A |
Get a quote for this product
Our engineering team will get back to you shortly.