Twelve power classes
Models from 250 to 10,000 VA cover output currents from 3 to 80 A.
EAC-S – Linear Single-Phase AC Power Supply up to 10 kVA
For equipment and grid fault testing with low distortion, custom waveforms and AC, DC or AC+DC operation.
The EAC-S is a programmable single-phase AC source for reproducing defined supply networks. It generates AC, DC and combined AC+DC output signals, provides up to 300 V AC or 425 V DC as standard, and combines selectable waveforms with variable frequency and integrated measurement acquisition.
Extended voltage ranges
Options provide up to 500 or 700 V AC and 700 or 1,000 V DC with defined current derating.
Synchronized test sequences
Optional sync inputs and outputs plus an external oscillator input integrate additional sources and measuring instruments.
Standalone memory-card operation
With the optional SD card, waveforms, scripts and measurement data can be used directly at the instrument.
Personal project consultation
Do you need support selecting the right power supply? Our technical specialists will provide personal advice tailored to your application.
Select the appropriate technical configuration or access product documentation directly.
ART. NO.
Description
Current [A]
Power [P]
Voltage [V]
EAC-S 250
|
Description
EAC-S 250 Linear 1-phase AC power source, 250 VA, 0–300 VAC / 0–425 VDC, 0–3 A, 4U
|
Current [A]
3
|
Power [P]
250
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 500
|
Description
EAC-S 500 Linear 1-phase AC power source, 500 VA, 0–300 VAC / 0–425 VDC, 0–6 A, 4U
|
Current [A]
6
|
Power [P]
500
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 1000
|
Description
EAC-S 1000 Linear 1-phase AC power source, 1,000 VA, 0–300 VAC / 0–425 VDC, 0–10 A, 6U
|
Current [A]
10
|
Power [P]
1000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 2000
|
Description
EAC-S 2000 Linear 1-phase AC power source, 2,000 VA, 0–300 VAC / 0–425 VDC, 0–15 A, 6U
|
Current [A]
15
|
Power [P]
2000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 3000
|
Description
EAC-S 3000 Linear 1-phase AC power source, 3,000 VA, 0–300 VAC / 0–425 VDC, 0–20 A, 10U
|
Current [A]
20
|
Power [P]
3000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 4000
|
Description
EAC-S 4000 Linear 1-phase AC power source, 4,000 VA, 0–300 VAC / 0–425 VDC, 0–30 A, 16U
|
Current [A]
30
|
Power [P]
4000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 5000
|
Description
EAC-S 5000 Linear 1-phase AC power source, 5,000 VA, 0–300 VAC / 0–425 VDC, 0–35 A, 16U
|
Current [A]
35
|
Power [P]
5000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 6000
|
Description
EAC-S 6000 Linear 1-phase AC power source, 6,000 VA, 0–300 VAC / 0–425 VDC, 0–40 A, 16U
|
Current [A]
40
|
Power [P]
6000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 7000
|
Description
EAC-S 7000 Linear 1-phase AC power source, 7,000 VA, 0–300 VAC / 0–425 VDC, 0–50 A, 20U
|
Current [A]
50
|
Power [P]
7000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 8000
|
Description
EAC-S 8000 Linear 1-phase AC power source, 8,000 VA, 0–300 VAC / 0–425 VDC, 0–60 A, 20U
|
Current [A]
60
|
Power [P]
8000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 9000
|
Description
EAC-S 9000 Linear 1-phase AC power source, 9,000 VA, 0–300 VAC / 0–425 VDC, 0–70 A, 25U
|
Current [A]
70
|
Power [P]
9000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S 10000
|
Description
EAC-S 10000 Linear 1-phase AC power source, 10,000 VA, 0–300 VAC / 0–425 VDC, 0–80 A, 25U
|
Current [A]
80
|
Power [P]
10000
|
Voltage [V]
300
|
Linear 1-ph AC Source
Technical Data
Height
6
4
Product category
AC Power Supply
Type of AC source
Current-controlled CC
Single-phase
EAC-S overview
The EAC-S is a programmable single-phase AC source for laboratories, industry and service engineering. Twelve models provide 250 to 10,000 VA, with rated currents from 3 to 80 A. The standard output covers 0–300 V AC and 0–425 V DC. Options extend the range to 500 or 700 V AC and 700 or 1,000 V DC, with a reduced current limit in each case. In addition to pure AC and DC signals, the source can superimpose an adjustable DC component on an AC waveform. Sine, square and triangle can be selected directly; three non-volatile memory locations store user-defined waveforms. The standard frequency range extends to 500 Hz, with optional extensions to 1,000 or 2,000 Hz. Operation and measurement display are available at the front panel. Automated test systems can use optional analog and digital interfaces, synchronization, external signals, and SD-card-based waveform, script and data-logging functions.
Key benefits
Reproduce diverse supply conditions
AC, DC and mixed AC+DC signals enable investigation of alternating voltage, DC components and superimposed waveforms with one source.
Broadly graduated power range
Twelve models from 250 to 10,000 VA help match power, current, rack height and mains connection to the test system.
Standard and custom waveforms
Sine, square, triangle and three stored 16-bit waveforms with 3,600 points support reproducible signal profiles.
Integrated electrical measurements
The display covers RMS, DC and peak values as well as active, reactive and apparent power, power factor and crest factor.
Sequences without a control PC
The optional SD card executes scripts with up to 100 commands and logs measurement values at adjustable intervals.
Ready for test-system integration
Optional analog, serial, USB, LAN and IEEE-488 interfaces plus sync I/O connect setpoints, status and measurements to automation.
Linear technology compared with switch-mode sources
The EAC-S uses a linear output stage in which an analog power amplifier continuously reproduces the specified waveform at the output. In contrast, switch-mode sources generate their output voltage by rapidly switching the power semiconductors. Linear technology supports a particularly clean waveform with low levels of switching-related high-frequency components, making it especially suitable for sensitive measurement, development and testing applications. Switch-mode sources generally offer higher efficiency, lower heat dissipation and more compact dimensions. The preferred technology therefore depends on whether signal quality or energy efficiency and power density are the primary consideration.
Operating principle of the single-phase AC source
After galvanic isolation, the supply voltage is rectified and feeds an analog power amplifier. Its target waveform comes from a table containing one complete period. The table can represent a fixed waveform, a stored user-defined curve or, with the corresponding option, an external oscillator signal. Amplitude and limiting settings determine the output signal.
In voltage mode, the output voltage follows the selected waveform; if the set RMS current is exceeded, the source reduces the amplitude. The DC component is set with its own polarity and added to the AC component. Depending on the installed equipment, setpoints can be supplied from the front panel, analog I/O, a digital interface or the memory card.
Models and standard output range
All listed standard models provide 0–300 V AC and 0–425 V DC. Power, maximum current limit and enclosure size differ as follows:
| Model | Power | Maximum current | Dimensions |
|---|---|---|---|
| EAC-S 250 | 250 VA | 3 A | 19-inch × 4U × 434.5 mm |
| EAC-S 500 | 500 VA | 6 A | 19-inch × 4U × 434.5 mm |
| EAC-S 1000 | 1,000 VA | 10 A | 19-inch × 6U × 434.5 mm |
| EAC-S 2000 | 2,000 VA | 15 A | 19-inch × 6U × 434.5 mm |
| EAC-S 3000 | 3,000 VA | 20 A | 19-inch × 10U × 434.5 mm |
| EAC-S 4000 | 4,000 VA | 30 A | 19-inch × 16U × 600 mm |
| EAC-S 5000 | 5,000 VA | 35 A | 19-inch × 16U × 600 mm |
| EAC-S 6000 | 6,000 VA | 40 A | 19-inch × 16U × 600 mm |
| EAC-S 7000 | 7,000 VA | 50 A | 19-inch × 20U × 800 mm |
| EAC-S 8000 | 8,000 VA | 60 A | 19-inch × 20U × 800 mm |
| EAC-S 9000 | 9,000 VA | 70 A | 19-inch × 25U × 800 mm |
| EAC-S 10000 | 10,000 VA | 80 A | 19-inch × 25U × 800 mm |
Select the correct configuration: The maximum voltage and current values describe the limits of each instrument. The rated apparent power additionally limits the permissible operating point. With the /V500 and /V700 options, maximum current is reduced by 40 and 50%, respectively.
Voltage, frequency and regulation
| Characteristic | Value | Condition or configuration |
|---|---|---|
| Standard voltage range | 0–300 V AC / 0–425 V DC | All listed standard models |
| Option /V500 | 0–500 V AC / 0–700 V DC | Maximum current −40% |
| Option /V700 | 0–700 V AC / 0–1,000 V DC | Maximum current −50% |
| Frequency | up to 500 Hz; optionally up to 1,000 or 2,000 Hz | Variable setting in 0.1-Hz steps |
| Static voltage regulation | 0.1% | Line and load regulation |
| Static current regulation | 0.1% | Constant-current operation |
| Dynamic regulation | 5 periods | Instrument specification |
| Ripple | 0.3% | at 50 Hz |
| Voltage programming accuracy | 100 mV | AC and DC voltage |
| Current programming accuracy | 1 mA below 10 A; 10 mA from 10 A | RMS constant current |
| Programming accuracy | 0.1 Hz / 0.1° | frequency / activation phase |
Operating modes and programmable functions
| Function | Operation | Benefit in the test sequence |
|---|---|---|
| AC / DC / AC+DC | AC signal, DC signal or AC waveform with an added DC component | Generate different supply conditions with one instrument |
| Sine / square / triangle | Directly selectable standard waveforms | Reproducible basic signals without external waveform creation |
| User waveforms | 16-bit WAV files with 3,600 points; three internal memory locations | Reuse individual periodic voltage profiles |
| External oscillator | Optional input signal is amplified; amplitude, limiting and delay are adjustable | Output external waveforms at the EAC-S power level |
| DIP | Disables the output for a defined number of half-periods; digital interface required | Generate defined short voltage interruptions |
| GATE / APuls | Timed output activation or adjustable pulse sequence; digital interface required | Automate time-dependent on/off profiles |
| Script mode | Optionally executes up to 100 commands from the SD card | Run repeatable sequences without a permanent control PC |
| Data logger | Saves measurement values to the SD card at an adjustable interval | Record test profiles for subsequent evaluation |
Typical applications
Single-phase mains simulation
The EAC-S provides defined voltage, frequency and waveform to investigate device behavior under different single-phase supply conditions.
Voltage interruptions and switching profiles
With digital control, DIP, GATE and pulse functions generate defined off and on periods for reproducible disturbance scenarios.
Testing with custom waveforms
Stored WAV curves or an optional external oscillator signal reproduce periodic signals beyond the three standard waveforms.
Automated laboratory and industrial test systems
Remote setpoints, measurement queries and status signals integrate the source into computer-controlled sequences and ATE systems.
Standalone long-duration and repetitive tests
Optional scripts control the sequence while the data logger records operating status and electrical measurements on the memory card.
Interfaces and automation
| Interface or option | Configuration | Function |
|---|---|---|
| Front panel | Graphical display and rotary pulse encoders | Operate setpoints, waveform, frequency, phase, limiting and measurement displays |
| ATI 5 / ATI 10 | Galvanically isolated analog interface, optional | Set values with 0–5 or 0–10 V and monitor measurements |
| RS232 / RS485 | Optional, ASCII protocol | Remote-control the instrument and query setpoints, measurements or status |
| USB | Optional, virtual COM port | Remote control using the serial-interface principle |
| LAN | Optional, TCP/IP or Telnet | Network-based control through port 10001 |
| IEEE-488 | Optional | Integration into GPIB-based measurement and test systems |
| Sync input / sync output | Individually optional | Align the output waveform with an external source or trigger external measuring instruments |
| SD card | Optional | Load waveforms, execute scripts and log measurement data |
Installation and infrastructure
| Characteristic | Requirement or configuration |
|---|---|
| Mains frequency | 47–63 Hz |
| Mains connection | Depending on the model, 1 × 230 V, 2 × 400 V or 3 × 400 V AC; optional 3 × 208 V and 3 × 480 V AC input variants |
| Cooling | Fan cooling; keep airflow paths clear according to the instrument dimensions |
| Operating temperature | 0–50 °C |
| Storage temperature | −20 to +70 °C |
| Relative humidity | < 80% |
| Operating altitude | < 2,000 m |
| Weight | 30–437 kg depending on the model |
Mains cabling, protective earth, circuit protection, connection type and installation space must be sized for the selected model. Before commissioning, the input voltage stated on the nameplate must match the available mains supply.
Protection and safety functions
The EAC-S monitors overtemperature and overpower conditions. If the permissible power is exceeded, the instrument reduces or disables the output depending on the magnitude and duration of the overload. Short-term peak power is specified for the EAC-S 250 through EAC-S 3000 models and may be applied for no more than ten seconds.
An interlock input is available as an option. It switches the power transformer on the primary side through a contactor, but does not provide output isolation according to VDE. These instrument functions therefore do not replace the higher-level safety concept of the test system.
EAC-S FAQ
How is the correct EAC-S model selected?
Determine the highest simultaneous operating point for voltage, current and apparent power, plus frequency, waveform, installation dimensions and available mains connection. Account for the reduced current limit of the 500 and 700 V options.
Can the EAC-S output pure DC voltage?
Yes. The output supports AC, DC and AC+DC operation. In mixed-signal operation, the selected DC component is added to the AC waveform.
Which waveforms are available?
Sine, square and triangle are directly selectable. Three custom WAV curves can also be stored internally, or curves can be loaded through the optional memory card or a digital interface.
Which values does the source measure?
Measurements include RMS, DC and peak voltage and current as well as active, reactive and apparent power, power factor, crest factor and frequency.
Can the EAC-S simulate a single-phase mains supply?
Yes. Voltage, frequency and waveform are programmable, and a DC component can be superimposed. The selected operating point must remain within the voltage, current and power limits.
Can defined voltage interruptions be generated?
Yes. The DIP option disables the output for a defined number of half-periods. DIP and the time-dependent GATE and pulse functions require a digital interface.
Can a test sequence run independently without a PC?
With the optional SD card, scripts containing up to 100 commands can be executed and measurements can be logged. This supports repeatable standalone sequences.
Technical consultation and project enquiry
To select the correct EAC-S configuration, please provide power, AC and DC voltage range, maximum current, frequency, waveform and intended test duration. Add requirements for DC offset, voltage interruptions, external signals, synchronization, interfaces, data logging, interlock, mains connection and installation space.
