ACS 503N EMTEST Three-Phase Harmonic Flicker Programmable AC Power Supply

Product Description:

The ACS 503N series are three-phase harmonic and flicker programmable AC power supplies from EMTEST, an AMETEK company, designed for EMC harmonics and flicker testing of EUTs with rated currents in excess of 16A per phase. All EMTEST ACS serial power supplies provide perfectly sinusoidal and stable voltage signals and are specifically designed to perform fully compliant harmonics and flicker analysis under steady-state variations in grid supply frequency and voltage.

Complies with the following EMC standards:

• IEC/EN 61000-3-2
• IEC/EN 61000-3-3
• JIS C 61000-3-2
• IEC/EN 61000-3-11
• IEC/EN 61000-3-12
• GBZ 17625.3 Electromagnetic compatibility limits Limits for voltage fluctuations and flicker in low voltage supply systems for equipment with rated currents greater than 16A

All of these standards require that harmonics and flicker measurements require a relatively pure supply voltage at the front of the product.

Also, we have to check the requirements of the EMC standard to be tested for limit values.

Class A Harmonic Limits Class A for three-phase 200V

Harmonic limits for air conditioners with rated input power over 600W

In addition to the limit values for class A and class B, there are also limit values for class C and class D, which will not be repeated here, and the details are based on the latest IEC 61000-3-4 standard.

Which DUTs are suitable for this device?

ACS serial power supplies are best suited for powering medium to high power devices such as air conditioners, pumps, motors, heaters, etc. In addition, the power supplies are equipped with electronic protection against over-temperature, over-current, over-voltage and under-voltage.

Basic Functions:

EUTTEST offers ACS serial power supplies with guaranteed sinusoidal output voltages with a THD of less than 0.51 TP3T, regardless of the load, and a voltage stability of ±0.11 TP3T, independent of the load, even when the load varies. The ACS 503N meets the high purity and stability requirements for sinusoidal voltage signals and frequencies, regardless of grid conditions. The power range is 16 to 90 kVA.

act in concert with EM TEST DPA 503N Series Three-Phase Harmonic and Flicker Analyzer及 AIF 503N When used together with an independent flicker impedance module, the ACS 503N can be used via the RS232 interface. CTS 32Software to realize remote control and automated testing, and ultimately generate test reports for electronic product certification CCC or CE and other specifications, word, PDF, a variety of formats for your choice.

Technical parameters：

Product Specification Sheet:

The ACS 503N is a product sequence consisting of four different product models as shown in the table below, please select according to the power required by the DUT or contact EUTTEST to configure the correct harmonic flicker test system for you.

High-Power Power Supply Recommendations:

If the current and voltage ratings of this unit are not met, check out the Voltage, Current, and Power Comparison table below, where you can also pick up EMTEST NetWave and PowerWave serial power supplies.

Discontinued models of older ACS serial power supplies:

The following product models have been discontinued for 2026, please select an available product model from the product specification table above.

• ACS503 (ACS503 S30)
• ACS 503S3
• ACS 503S4

Order No. EUTS0868