20A Sine Wave Filter, 3 Phase

5 out of 5 based on 2 reviews | Write a review

$413.23

Good price 20A sine wave filter comes with 3-phase, adapted power of 7.5kW, and carrier frequency 4kHz. The sinusoidal filter features compact, easy to install and excellent performance.

SKU: ATO-SWF-20

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Delivery date: 6-12 days

Overview

Three phase sine wave filter with rated current 20A, adapted power 7.5kW, withstand voltage 3000VAC 60/s, F insulation class. The sine filters filter out the switching frequency from the pulse width modulation (PWM) from the output of an inverter, then provide a sinusoidal motor current.

Specification

Model	ATO-SCAR-0020
Rated current	20A
Adapted power	7.5kW
Withstand voltage	3000 VAC 60/s
Fundamental frequency	50/60Hz
Carrier frequency	4kHz
Insulation class	F
Altitude	＜2000m
Working temperature	-40-85℃
Voltage drop	8%-12%
Weight	14.5kg

Dimension

Dimension of sine wave filter

Model	L	W	H	L1	W1	A	B
ATO-SCAR-0020	230mm	220mm	245mm	210mm	78mm	8mm	14mm

Application

Sine wave filter application

Tips: What is the function of a sine wave filter?

The function of the sine wave filter is to convert the PWM wave output by the variable frequency into a sine wave. When the motor voltage is 50Hz, the distortion coefficient of the sine wave filter is about 5%.

Its main functions include two aspects:

Adjust the waveform output by the inverter. The waveform output by the inverter is a PWM wave, which is a waveform between a square wave and a sine wave. After adding a sine wave filter, the PWM wave will be transformed into a waveform that is more like a sine wave.
Realize the long-distance transmission of the frequency converter. In general, if the distance between the inverter and the load exceeds 50 meters, a reactor must be added. If there is a requirement for the output waveform of the inverter, a sine wave filter must be added. This distance refers to the length of the connection.

Existing reviews of 20A Sine Wave Filter, 3 Phase

For use with frequency converter and motor

I would like to inquire about a "20A sine wave filter, three-phase," model ATO-SCAR-0020. We intend to purchase one of these filters, but it needs to be used with an inverter and two motors designed for a frequency of 60Hz. Is this product suitable for this application?

From: Rossi | Date: 18/03/2026

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ATO Responded

Our filter is suitable for your application. What is the power rating of your inverter? What is the length of the cable between the inverter and the motor?

Provide high quality sine wave output

The standout feature of this sine wave filter is its capacity to deliver a consistent and smooth sine wave output in a three-phase configuration. This is crucial for sensitive electronic equipment that relies on a clean and distortion-free power source.

From: Zephyrine | Date: 22/11/2023

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