LIF line reactors 2–1000 A
Country: Italy · Model: LIF
Three-phase line reactors for 2–1000 A with a voltage drop of 3, 4 or 5 %. They cut the harmonics of the current that a soft starter or drive injects into the grid by up to 20 %. They sit at the converter input.
- Voltage
- 380–480 V (208–240 V and 500–690 V on request)
- Current
- 2–1000 A
- Voltage drop
- 3 %, 4 %, 5 %
- THD reduction
- up to 20 %
Technical specifications
| Voltage | 380–480 V (208–240 V and 500–690 V on request) |
|---|---|
| Current | 2–1000 A |
| Voltage drop | 3 %, 4 %, 5 % |
| THD reduction | up to 20 % |
| Degree of protection | IP00, IP21, IP54 |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The reactor is wired in series with the supply ahead of a frequency converter or soft starter. It limits the harmonic components of the current and protects the converter’s input circuits. The inductance is chosen through the voltage drop across the reactor, and the range offers three values, 3 %, 4 % and 5 %. The higher the value, the stronger the harmonic limiting, but the more noticeable the voltage sag at the load. The standard voltage is 380–480 V, and versions for 208–240 V and 500–690 V are made on request. IP00, IP21 or IP54 decides whether the reactor is mounted open or in an enclosure.
How to choose
The starting point is the converter’s rated current within 2–1000 A. Then choose the voltage drop. A mild harmonic reduction needs 3 %, while 5 % gives the strongest effect. If the network is 500–690 V or 208–240 V, the reactor is ordered separately. When harmonics must be brought below 5 % THDi, move to the PHF passive filters for 5–750 A. To protect a motor at the drive output you need the SWF sine filters instead.
Request a price and lead time
LIF line reactors 2–1000 A. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What current and voltage do the LIF line reactors have?
Current is 2–1000 A and voltage is 380–480 V. Versions for 208–240 V and 500–690 V are made on request.
What voltage drop do the LIF reactors have?
The range offers a voltage drop of 3, 4 or 5 %. A higher value limits harmonics more but gives a larger voltage sag.
How much does the LIF reactor reduce THD?
THD reduction is up to 20 %. The actual result depends on the chosen voltage drop and the drive operating mode.
Why fit a line reactor ahead of a drive or soft starter?
The reactor reduces the harmonics of the current that a drive or soft starter feeds into the grid and protects the converter input.
Which degrees of protection are available for the LIF reactors?
IP00, IP21 and IP54 versions are available. IP00 suits mounting inside a cabinet.
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Need a price, lead time or replacement?
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