Versatile load modes
CC, linear CC, CR, CP, CV and non-linear rectifier modes are available for AC and DC testing.
AEL-5000 – Programmable AC/DC Electronic Load up to 22.5 kW Continuous Power
For reproducible load and protection testing of UPS systems, inverters and power sources.
The wide AC/DC operating envelope supports sine-wave sources as well as PWM, stepped and square-wave outputs. Linear consumers, rectifier-based input stages and time-defined load profiles can therefore be evaluated using one consistent instrument platform.
Turbo mode
Short-circuit, OCP, OPP and protection-component tests can temporarily use up to twice the rated current and power.
Programmable waveforms
Load angles, half-wave operation, crest factor, power factor and SCR or TRIAC profiles reproduce practical consumer behaviour.
Optional remote control
GPIB, RS-232, USB and LAN support integration into automated test systems and documented test sequences.
Personal project consultation
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Select the appropriate technical configuration or access product documentation directly.
ART. NO.
Description
Current [A]
Power [P]
Voltage [V]
AEL-5002-350-18.75
|
Description
AEL-5002-350-18.75 AC/DC electronic load, 1.875 kW, AC 50–350 Vrms / DC 500 Vdc, 18.75 Arms / 56.25 Apeak, Turbo mode up to 3.75 kW / 37.5 Arms
|
Current [A]
18,75
|
Power [P]
1875
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5003-350-28
|
Description
AEL-5003-350-28 AC/DC electronic load, 2.8 kW, AC 50–350 Vrms / DC 500 Vdc, 28 Arms / 84 Apeak, Turbo mode up to 5.6 kW / 56 Arms
|
Current [A]
28
|
Power [P]
2800
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5004-350-37.5
|
Description
AEL-5004-350-37.5 AC/DC electronic load, 3.75 kW, AC 50–350 Vrms / DC 500 Vdc, 37.5 Arms / 112.5 Apeak, Turbo mode up to 7.5 kW / 75 Arms
|
Current [A]
37.5
|
Power [P]
3750
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5002-425-18.75
|
Description
AEL-5002-425-18.75 AC/DC electronic load, 1.875 kW, AC 50-425 Vrms / DC 600 VDC, 18.75 Arms / 56.25 Apeak, turbo mode up to 3.75 kW / 37.5 Arms
|
Current [A]
18,75
|
Power [P]
1875
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5003-425-28
|
Description
AEL-5003-425-28 AC/DC electronic load, 2.8 kW, AC 50–425 Vrms / DC 600 Vdc, 28 Arms / 84 Apeak, Turbo mode up to 5.6 kW / 56 Arms
|
Current [A]
28
|
Power [P]
2800
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5004-425-37.5
|
Description
AEL-5004-425-37.5 AC/DC electronic load, 3.75 kW, AC 50–425 Vrms / DC 600 Vdc, 37.5 Arms / 112.5 Apeak, Turbo mode up to 7.5 kW / 75 Arms
|
Current [A]
37.5
|
Power [P]
3750
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5006-350-56
|
Description
AEL-5006-350-56 AC/DC electronic load, 5.6 kW, AC 50-350 Vrms / DC 500 VDC, 56 Arms / 168 Apeak, turbo mode up to 11.2 kW / 112 Arms
|
Current [A]
56
|
Power [P]
5600
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5008-350-75
|
Description
AEL-5008-350-75 AC/DC electronic load, 7.5 kW, AC 50–350 Vrms / DC 500 Vdc, 75 Arms / 225 Apeak, Turbo mode up to 15 kW / 150 Arms
|
Current [A]
75
|
Power [P]
7500
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5012-350-112.5
|
Description
AEL-5012-350-112.5 AC/DC electronic load, 11.25 kW, AC 50–350 Vrms / DC 500 Vdc, 112.5 Arms / 337.5 Apeak, Turbo mode up to 22.5 kW / 225 Arms
|
Current [A]
112.5
|
Power [P]
11250
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5015-350-112.5
|
Description
AEL-5015-350-112.5 AC/DC electronic load, 15 kW, AC 50–350 Vrms / DC 500 Vdc, 112.5 Arms / 337.5 Apeak, Turbo mode up to 30 kW / 225 Arms
|
Current [A]
112.5
|
Power [P]
15000
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5019-350-112.5
|
Description
AEL-5019-350-112.5 AC/DC electronic load, 18.75 kW, AC 50–350 Vrms / DC 500 Vdc, 112.5 Arms / 337.5 Apeak, Turbo mode up to 37.5 kW / 225 Arms
|
Current [A]
112.5
|
Power [P]
18750
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5023-350-112.5
|
Description
AEL-5023-350-112.5 AC/DC electronic load, 22.5 kW, AC 50–350 Vrms / DC 500 Vdc, 112.5 Arms / 337.5 Apeak, Turbo mode up to 45 kW / 225 Arms
|
Current [A]
112.5
|
Power [P]
22500
|
Voltage [V]
350
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5006-425-56
|
Description
AEL-5006-350-56 AC/DC electronic load, 5.6 kW, AC 50–350 Vrms / DC 500 Vdc, 56 Arms / 168 Apeak, Turbo mode up to 11.2 kW / 112 Arms
|
Current [A]
56
|
Power [P]
5600
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5008-425-75
|
Description
AEL-5008-425-75 AC/DC electronic load, 7.5 kW, AC 50–425 Vrms / DC 600 Vdc, 75 Arms / 225 Apeak, Turbo mode up to 15 kW / 150 Arms
|
Current [A]
75
|
Power [P]
7500
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5012-425-112.5
|
Description
AEL-5012-425-112.5 AC/DC electronic load, 11.25 kW, AC 50–425 Vrms / DC 600 Vdc, 112.5 Arms / 337.5 Apeak, Turbo mode up to 22.5 kW / 225 Arms
|
Current [A]
112.5
|
Power [P]
11250
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5015-425-112.5
|
Description
AEL-5015-425-112.5 AC/DC electronic load, 15 kW, AC 50–425 Vrms / DC 600 Vdc, 112.5 Arms / 337.5 Apeak, Turbo mode up to 30 kW / 225 Arms
|
Current [A]
112.5
|
Power [P]
15000
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5019-425-112.5
|
Description
AEL-5019-425-112.5 AC/DC electronic load, 18.75 kW, AC 50–425 Vrms / DC 600 Vdc, 112.5 Arms / 337.5 Apeak, Turbo mode up to 37.5 kW / 225 Arms
|
Current [A]
112.5
|
Power [P]
18750
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5023-425-112.5
|
Description
AEL-5002-425-18.75 AC/DC electronic load, 1.875 kW, AC 50–425 Vrms / DC 600 Vdc, 18.75 Arms / 56.25 Apeak, Turbo mode up to 3.75 kW / 37.5 Arms
|
Current [A]
112.5
|
Power [P]
22500
|
Voltage [V]
425
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5003-480-18.75
|
Description
AEL-5003-480-18.75 AC/DC electronic load, 2.8 kW, AC 50–480 Vrms / DC 700 Vdc, 18.75 Arms / 56.25 Apeak, Turbo mode up to 5.6 kW / 37.5 Arms
|
Current [A]
18,75
|
Power [P]
2800
|
Voltage [V]
480
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5004-480-28
|
Description
AEL-5004-480-28 AC/DC electronic load, 3.75 kW, AC 50–480 Vrms / DC 700 Vdc, 28 Arms / 84 Apeak, Turbo mode up to 7.5 kW / 56 Arms
|
Current [A]
28
|
Power [P]
3750
|
Voltage [V]
480
|
AC/DC Load
Technical Data
Product category
AC Electronic Load
Type of AC Load
Conventional Load
AEL-5000 series overview
The AEL-5000 is a programmable, dissipative high-power electronic load for single-phase AC and DC testing. The series comprises 20 models with continuous power ratings from 1.875 to 22.5 kW, AC input ranges up to 350, 425 or 480 Vrms and DC input voltages up to 500, 600 or 700 V. Depending on the model, current ratings extend to 112.5 Arms or 337.5 Apeak. In addition to conventional load modes, the platform supports linear current loading, non-linear rectifier loads, phase-related current waveforms and time-controlled protection tests. An integrated 16-bit measurement circuit records RMS, peak, minimum and maximum values, real and apparent power, power factor, crest factor and voltage or current harmonics. Identical units can be combined through master/slave operation or configured as a three-phase star or delta load.
Key benefits
One platform for AC and DC
Sine-wave AC outputs, non-sinusoidal waveforms and DC sources can be tested without separate load systems.
Non-linear consumers
Rectifier and combined CC/CR loads reproduce typical input stages of UPS systems, power supplies and PV inverters.
Short-term protection testing
Turbo mode temporarily extends current and power for short-circuit, fuse, OCP and OPP tests.
Integrated power analysis
Voltage, current, W, VA, VAR, PF, CF, frequency, THD and individual harmonics are evaluated directly by the instrument.
Phase-related load events
Load and unload angles can be programmed across the complete cycle and combined with half-wave or phase-control profiles.
Scalable load systems
Up to eight identical units per phase can be linked and operated centrally from a master instrument.
Operating principle of the AC/DC electronic load
The AEL-5000 absorbs electrical energy from the connected device under test and converts it into heat inside the load. It is therefore a dissipative electronic load and does not return the absorbed energy to the utility grid.
During AC operation, current can be drawn independently of the input voltage, proportionally to the voltage or according to a defined power, voltage or rectifier characteristic. Linear CC mode follows non-sinusoidal input waveforms and is suitable for PWM, stepped and square-wave voltages. CC, linear CC, CR, CP, CV and non-linear configurations are also available for DC testing.
Non-linear AC loading:
Rectifier mode reproduces pulse-shaped consumer currents. The non-linear and non-linear-plus-resistance functions support test arrangements for UPS efficiency measurements according to IEC 62040-3 and PV inverter testing according to IEC 61683.
Power range and operating envelope
The model range combines three AC voltage classes with graduated current and power ratings. Rated power is not available at every arbitrary voltage and current point. The permitted operating point is determined by the model-specific voltage-current curve, continuous power rating and maximum RMS or peak current.
Turbo ratings are time-limited test values and must not be interpreted as continuous power. Permitted duration and programmable parameters depend on the selected short-circuit, fuse, OCP or OPP function.
| Model | Continuous power | Turbo power | Rated current | Turbo current | Voltage range |
|---|---|---|---|---|---|
| AEL-5002-350-18.75 | 1.875 kW | 3.75 kW | 18.75 Arms / 56.25 Apeak | 37.5 Arms / 56.25 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5003-350-28 | 2.8 kW | 5.6 kW | 28 Arms / 84 Apeak | 56 Arms / 84 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5004-350-37.5 | 3.75 kW | 7.5 kW | 37.5 Arms / 112.5 Apeak | 75 Arms / 112.5 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5006-350-56 | 5.6 kW | 11.2 kW | 56 Arms / 168 Apeak | 112 Arms / 168 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5008-350-75 | 7.5 kW | 15 kW | 75 Arms / 225 Apeak | 150 Arms / 225 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5012-350-112.5 | 11.25 kW | 22.5 kW | 112.5 Arms / 337.5 Apeak | 225 Arms / 337.5 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5015-350-112.5 | 15 kW | 30 kW | 112.5 Arms / 337.5 Apeak | 225 Arms / 337.5 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5019-350-112.5 | 18.75 kW | 37.5 kW | 112.5 Arms / 337.5 Apeak | 225 Arms / 337.5 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5023-350-112.5 | 22.5 kW | 45 kW | 112.5 Arms / 337.5 Apeak | 225 Arms / 337.5 Apeak | 50–350 Vrms / 500 Vdc |
| AEL-5002-425-18.75 | 1.875 kW | 3.75 kW | 18.75 Arms / 56.25 Apeak | 37.5 Arms / 56.25 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5003-425-28 | 2.8 kW | 5.6 kW | 28 Arms / 84 Apeak | 56 Arms / 84 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5004-425-37.5 | 3.75 kW | 7.5 kW | 37.5 Arms / 112.5 Apeak | 75 Arms / 112.5 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5006-425-56 | 5.6 kW | 11.2 kW | 56 Arms / 168 Apeak | 112 Arms / 168 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5008-425-75 | 7.5 kW | 15 kW | 75 Arms / 225 Apeak | 150 Arms / 225 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5012-425-112.5 | 11.25 kW | 22.5 kW | 112.5 Arms / 337.5 Apeak | 225 Arms / 337.5 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5015-425-112.5 | 15 kW | 30 kW | 112.5 Arms / 337.5 Apeak | 225 Arms / 337.5 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5019-425-112.5 | 18.75 kW | 37.5 kW | 112.5 Arms / 337.5 Apeak | 225 Arms / 337.5 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5023-425-112.5 | 22.5 kW | 45 kW | 112.5 Arms / 337.5 Apeak | 225 Arms / 337.5 Apeak | 50–425 Vrms / 600 Vdc |
| AEL-5003-480-18.75 | 2.8 kW | 5.6 kW | 18.75 Arms / 56.25 Apeak | 37.5 Arms / 56.25 Apeak | 50–480 Vrms / 700 Vdc |
| AEL-5004-480-28 | 3.75 kW | 7.5 kW | 28 Arms / 84 Apeak | 56 Arms / 84 Apeak | 50–480 Vrms / 700 Vdc |
Standard models operate from 40 to 440 Hz in AC mode. The operating range of the AEL-5003-480-18.75 and AEL-5004-480-28 is limited to DC or 40 to 70 Hz. Customised 800 Hz or 1 kHz versions are available on request.
Dynamic control and response
Programmable load timing, bandwidth adjustment and synchronisation functions allow the series to be adapted to different source characteristics and control speeds. This supports targeted evaluation of the device under test during abrupt consumer changes.
Load and unload angles
Load ON and Load OFF can be programmed from 0 to 359° to reproduce random switching within the mains cycle.
Adjustable control bandwidth
Bandwidth can be selected automatically or adjusted across 15 steps to match the response of the connected source.
External synchronisation
A TTL synchronisation input coordinates load events with external sources, measurement equipment or automated test sequences.
Inrush and surge profiles
Programmable start, step and stop currents support evaluation of start-up events and suddenly connected consumers.
Operating modes and programmable test functions
| Function | Operating principle | Typical use |
|---|---|---|
| CC | Constant RMS current with adjustable crest factor and power factor. | Linear AC consumers and current loading of AC or DC sources. |
| Linear CC | The load current follows the shape of the applied voltage. | PWM, stepped, square-wave and switching UPS output voltages. |
| CR | Current is proportional to the input voltage. | Simulation of resistive consumers and resistance characteristics. |
| CP | Constant power absorption within the permitted operating envelope. | Power supplies, inverters, batteries and systems requiring power-related loading. |
| CV | The load controls current until the programmed input voltage is reached. | Voltage-limited devices under test and defined discharge end points. |
| Non-Linear / NL+CR | Rectifier-based current waveform alone or combined with a resistive component. | UPS efficiency, PV inverters and power supplies with capacitive input stages. |
| Short | Time-limited or continuous short-circuit loading with programmable voltage limits. | Evaluation of source protection and short-circuit behaviour. |
| OCP / OPP | Current or power is increased in steps until a defined stop condition is reached. | Validation of overcurrent and overpower protection. |
| Fuse | Multi-level current pulses with trip or non-trip evaluation and time measurement. | Fuses, circuit breakers and resettable PTC protection devices. |
| Battery | Discharge in CC, linear CC, CR or CP mode until a voltage or time limit is reached. | Discharge-time, capacity and cut-off testing. |
| Transfer | Time measurement while an offline UPS changes to battery operation. | Validation of transfer and bridging time. |
| Inrush / Surge | Defined start-up and multi-stage surge-current profiles. | Transient testing during start-up and hot-plug events. |
Up to 150 instrument states can be stored and recalled. The auto-sequence function combines stored states into repeatable procedures with PASS/FAIL evaluation.
Typical applications
Combined AC and DC operation, non-linear current waveforms, time measurement and short-term overload capability cover a wide range of development, validation and production tasks.
UPS systems
Efficiency, backup time, transfer time and output stability are evaluated with linear and non-linear load profiles.
Inverter and PV testing
Rectifier and combined CC/CR profiles load PV inverter outputs with defined power factor and current distortion.
AC and DC power sources
Regulation, short-circuit capability, output power and OCP or OPP thresholds can be tested automatically.
Protection components
Trip and non-trip tests determine the response time and behaviour of fuses, circuit breakers and PTC devices.
Battery discharge
Batteries are discharged at constant current, power or resistance until a voltage threshold or programmed time is reached.
Production and end-of-line testing
Stored states, sequences, limit evaluation and remote control support reproducible production testing.
Interfaces, monitor outputs and automation
| Function | Status | Technical use |
|---|---|---|
| Master/slave connection | Integrated | Control of identical instruments in parallel boost or three-phase 3PH operation. |
| Remote sense | Integrated | Separate voltage sensing at the DUT compensates for voltage drop across load cables. |
| V-monitor | Integrated | Isolated 0–10 V monitor output for displaying input voltage on external measurement equipment. |
| I-monitor | Integrated | Isolated 0–10 V monitor output proportional to the current range of the selected model. |
| SYNC input | Integrated | TTL synchronisation with external sources, triggers or test procedures. |
| Analogue programming | Configuration-dependent | 0–10 V current or power programming; 10 V corresponds to full scale. |
| PEL-022 | Option | GPIB interface card. |
| PEL-023 | Option | RS-232 interface card. |
| PEL-024 | Option | LAN interface card. |
| PEL-025 | Option | USB interface card. |
| PEL-030 | Option | Combined GPIB and RS-232 interface card. |
An extensive remote command set is available for operating modes, setpoints, limits, measurement queries, sequences and three-phase measurements. Available remote-control functions depend on the installed interface card.
Parallel operation and three-phase scaling
For higher power, one master and up to seven identical slave instruments can be connected through the dedicated master/slave ports. In boost mode, the master distributes the setpoint across all parallel units and displays total current and total power.
In 3PH mode, one master controls two slave units for a three-phase star or delta connection. Each phase may additionally consist of a group containing up to eight identical instruments.
| Configuration | Number of instruments | Total power | Control |
|---|---|---|---|
| Single-phase parallel operation | 1 master + up to 7 slaves | Up to 180 kW continuous power | Central operation and total measurement display on the master |
| Three-phase operation | Three phase groups | Up to 540 kW continuous power in total | 3PH master operation in star or delta connection |
Only identical models may be used in a master/slave system. The specified 15-pin HD-DSUB cable is required for connection; a standard VGA cable must not be used.
Installation and infrastructure
| Characteristic | Requirement or range |
|---|---|
| Auxiliary mains supply | 100–240 Vac ±10%, 47–63 Hz |
| Control and cooling power consumption | 150 to 750 VA depending on model |
| Operating temperature | 0 to 40°C |
| Relative humidity | 0 to 85% RH |
| Altitude | Below 2,000 m |
| Cooling | Front-to-rear airflow; ventilation openings must not be obstructed. |
| Rear clearance | A minimum clearance of 15 cm is recommended. |
| Protective earth | The protective conductor of the mains cable must be connected to a suitable earth connection. |
| Load connection | Rear AC/DC input terminals; load cables should be as short and twisted as practical. |
| Power class | Dimensions H × W × D | Weight |
|---|---|---|
| 1.875 kW | 177 × 440 × 552.6 mm | 21.5 kg |
| 2.8 kW | 177 × 440 × 552.6 mm | 27.5 kg |
| 3.75 kW | 177 × 440 × 552.6 mm | 33.5 kg |
| 5.6 kW | 457.8 × 480 × 593 mm | 58 kg |
| 7.5 kW | 457.8 × 480 × 593 mm | 70 kg |
| 11.25 kW | 635.7 × 480 × 593 mm | 105 kg |
| 15 kW | 813.5 × 480 × 593 mm | 140 kg |
| 18.75 kW | 1,283 × 600 × 600 mm | 260 kg |
| 22.5 kW | 1,283 × 600 × 600 mm | 295 kg |
Protection and safety functions
| Protection function | Behaviour |
|---|---|
| Overvoltage protection | The load switches off at approximately 105% of its nominal voltage class and displays OVP. |
| Overcurrent protection | The load switches off at approximately 105% of the maximum instrument current and displays OCP. |
| Overpower protection | LOAD OFF is activated above approximately 105% of rated power and OPP is displayed. |
| Overtemperature protection | Automatic shutdown occurs at an internal heat-sink temperature of approximately 100°C and OTP is displayed. |
| Limit monitoring | Programmable upper and lower limits for voltage, current, real power and apparent power with NG indication. |
| Remote sense | Separate voltage measurement at the DUT reduces the influence of voltage drop across the load cables. |
The maximum permitted AC or DC input voltage of the selected model must not be exceeded. Appropriately rated external protection is recommended wherever an overvoltage condition may occur.
AEL-5000 FAQ
Can the AEL-5000 test both AC and DC sources?
Yes. The series supports AC and DC inputs with operating modes for sinusoidal, non-sinusoidal and constant-voltage sources.
Is Turbo power available continuously?
No. Turbo is a time-limited function for selected short-circuit, fuse, OCP and OPP tests and does not replace the continuous rating.
Which models support the highest input voltage?
The 480 Vrms models support up to 700 Vdc. Their AC frequency range is limited to 40 to 70 Hz and must be considered during model selection.
Can three-phase devices under test be loaded?
Yes. Three identical instruments or three identical instrument groups can operate in 3PH mode as a star or delta load.
Which remote interfaces are available?
GPIB, RS-232, USB and LAN are available as optional interface cards. Master/slave, sense, monitor and synchronisation connections are provided on the instrument.
Can the load measure UPS transfer time?
Yes. The integrated transfer test measures the switching time of an offline UPS when it changes to battery operation.
Is battery discharge testing supported?
Yes. Batteries can be loaded in CC, linear CC, CR or CP mode until a voltage threshold or programmed discharge time is reached.
Does the AEL-5000 recover energy?
No. It is a dissipative electronic load. The absorbed electrical energy is converted into heat inside the load system.
Technical consultation and project enquiry
To select the appropriate voltage, current and power range, we require the electrical operating points, waveform, frequency range and information about continuous operation, short-term loading and the planned automation concept.
For parallel or three-phase systems, we also support the selection of instrument quantity, wiring, interface configuration, load connections and thermal integration.
Send a technical enquiry
Downloads "AEL-5000"
