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LS Frequency Inverters

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LS Electric Variable Frequency Drives — Reliable Korean Industrial Automation

LS Electric (formerly LS Industrial Systems, originally a spin-off of LG Industrial Systems) is a South Korean industrial automation manufacturer with over 70 years of history. The company is part of LS Group and is a leading supplier of variable frequency drives (VFDs), PLCs, energy distribution systems, and electric motors in the Asia-Pacific region and Europe. The VFD catalogue on chastotnik.ua features 24 LS Electric models across three series, covering a power range of 0.4–22 kW.

LS Electric Product Series

The LS Electric range in stock covers three main series — iC5, iG5A, and iP5A. Each series is optimised for a specific application type: from compact drives for individual machines to high-performance converters for pumps and compressors requiring precise torque control.

Series Supply Power Key feature Typical application
iC5 1×220 V 0.4–2.2 kW Single-phase supply, built-in EMC filter, IP20 Small machinery, pumps, light commercial
iG5A 1×220 V / 3×380 V 0.4–22 kW Sensorless vector control, wide power range Conveyors, fans, pumps, woodworking equipment
iP5A 3×380 V 5.5–22 kW High torque accuracy, IP20, max frequency 120 Hz Hoists, centrifuges, dynamic-load equipment

How to Choose an LS Electric VFD

Model selection depends on the available power supply, motor rating, and load characteristics. The iC5 series is ideal when connecting directly to a single-phase 220 V supply without a transformer. The iG5A series is the most versatile: it covers 0.4–22 kW and supports both 220 V and 380 V supply options. The iP5A series targets applications requiring high torque control precision on three-phase 380 V supply.

Model Series Power Current (A) Supply Application
SV040IG5A-4 iG5A 4.0 kW 9 A 3×380 V Conveyors, woodworking machines
SV055IG5A-4 iG5A 5.5 kW 12 A 3×380 V Pumps, fans
SV015IG5A-4 iG5A 1.5 kW 4 A 3×380 V Compact industrial equipment
SV008IC5-1F iC5 0.7 kW 5 A 1×220 V Low-power machinery, domestic pumps
SV022IG5A-4 iG5A 2.2 kW 6 A 3×380 V Ventilation, conveyor belts

Other VFD Brands

If you need a broader range or a different manufacturer, explore Danfoss, INVT, Hitachi, or browse the full VFD catalogue on our website.

Warranty and Support

All LS Electric VFDs come with an official manufacturer warranty. Delivery across Ukraine is via Nova Poshta. For model selection assistance tailored to your motor or application, contact our technical team — consultation is free of charge.

LS Electric: when we ship the Korean VFD, when INVT GD20 is enough

LS Electric (formerly LG Industrial Systems) is a Korean company since 1974. Our catalogue carries 24 models across 3 series iC5, iG5A, iP5A rated 0.75 to 22 kW. Typical customer for us on LS: machine building, packaging lines, lift OEMs, light OEM production. On price-to-quality LS sits between Korean premium (LS / Hyundai) and Chinese mid-segment (Veichi / INVT): 30-40% above INVT GD20 but with official Korean representation in Ukraine and direct service, which matters for many production-floor customers.

We keep popular iG5A ratings 1.5/2.2/4/5.5/7.5/11 kW in stock. iC5 and iP5A ship by order (5-10 days). 24-month warranty through the LS Ukraine service network. Before the order we ask: encoder on the motor (iP5A required), starts per hour, communication protocols.

LS Electric VFD Series

Main Series and Applications

iC5: Compact Low-Power Series

6 models, 0.75-2.2 kW. Minimum dimensions, easy integration. We ship this for small pumps and fans, plus low-power mechanisms in tight spaces.

iG5A: General-Purpose Industrial Series

12 models, 0.75-22 kW. Sensorless vector control, Modbus RTU. Workhorse for conveyors and pumps, plus general industrial tasks. About 70% of our LS volume runs on this series.

iP5A: High-Performance Series

6 models, 5.5-22 kW. Closed-loop vector control with encoder, industrial protocol support. We ship this where the load needs precise torque control (lifts, winders, tension lines).

Which LS Electric Series to Choose?

Small pump or mechanism up to 2.2 kW: iC5. General industrial task up to 22 kW: iG5A. Application requiring precise torque control: iP5A.

Main Advantages

When selecting equipment, consider overload capacity, integrated EMC filtering, and industrial protocol support.

Frequently Asked Questions

How does a frequency inverter work?

In three stages. The input rectifier turns mains AC into DC, capacitors smooth it, and the IGBT output stage forms three-phase AC at the set frequency by PWM. Motor speed follows the frequency while the drive holds the U/f ratio so the magnetic flux stays put. LS iG5A does this with scalar and sensorless vector control. iP5A adds a feature set for heavier loads plus a built-in PID.

What is a frequency inverter?

A device that controls induction-motor speed through supply frequency. Instead of a single nameplate speed you get any speed in the working range plus a controlled ramp up and down. Our LS Electric stock is 24 models across three series: iC5 up to 2.2 kW, iG5A up to 22 kW and iP5A at 5.5-22 kW. Prices from UAH 11,800 with VAT, warranty 24 months.

How do I set up a frequency inverter?

On the LS iG5A the parameters are split into groups, and that noticeably shortens commissioning. The Drive group keeps what you touch most: run mode, frequency reference source, acceleration and deceleration times. Group F holds basic functions and frequency limits, group H the motor nameplate data, thermal protection and vector mode, group I the input and output settings. The order is the same as on other brands: motor, then protection, then ramps, and only then the control source.

Which frequency inverter converts 380 to 220 V?

A drive will not make 380 from 220: a single-phase input gives 3×220 V out. We have 8 such LS models in stock, iC5 at 0.75-2.2 kW and the -1 coded iG5A at 0.75 and 1.5 kW. A 380 V three-phase motor runs from them if the nameplate carries the 380/220 V pair and you move the terminal-box links to delta. Motors from 4 kW up, usually wound for 380/660 V, need a three-phase input.

Which converter turns 1 phase into 3 phases?

A drive with a single-phase input. It takes one 220 V phase with neutral and delivers three phases to the motor, which is exactly why it goes where no three-phase supply exists. At LS that means the whole iC5 series plus the single-phase iG5A versions, eight models in stock up to 2.2 kW. Their output is 3×220 V. Size the incoming breaker on single-phase current: it runs roughly three times the three-phase figure for the same power.

What is a voltage converter?

Different equipment entirely. The terms get mixed up often, so here is the split: a voltage converter (a stabiliser, a transformer, a DC-AC inverter) changes voltage itself and does not control motor speed. A variable frequency drive changes frequency and voltage together, because frequency is what sets induction-motor speed. If the task is stabilising a supply, a drive will not solve it. If the task is running a pump, a fan or a conveyor, then LS iC5, iG5A or iP5A is what you want.