Maximum values of the series: 300Vrms L-N / 42A / 3KVA / ØPL = 0,90€/W

Phase: 1 Display Accuracy I: ±0.5% FS + 5 dig
Voltage: 0 … 300Vrms L-N Display Accuracy P: ±0.5% FS + 5 dig
Current: 0 … 42A L-N Display Accuracy F: ±0.01% FS + 5 dig
Frequency: 45Hz … 250Hz Setting Accuracy U ±1% FS
Power: 0 … 3KVA Setting Accuracy F: ±0.1% FS
Cabinet: Non-Standard Ext. Control Analoque: No
Regulation: U Ext. Feedback Analoque: No
Load Regulation U: ≤1% RS232: Yes (only 51XXX Models)
Line Regulation U: ≤1% RS485: No
Frequency Stability: ≤0.01% RS422: no
Voltage Stability: ±1% Open Protocol: Yes
Harmonic Distortion: ≤2% Modbus-RTU: No
Crest Factor: ≤2% SCPI: No
Recovery Time (50% Chg.): ≤15ms Interlock: Yes*
Display Accuracy U: ±0.5% FS + 5 dig Ext. Outp. On/Off Contrl.: Yes*
Phase: 1
Voltage: 0 … 300Vrms L-N
Current: 0 … 42A L-N
Frequency: 45Hz … 250Hz
Power: 0 … 3KVA
Cabinet: Non-Standard
Regulation: U
Load Regulation U: ≤1%
Line Regulation U: ≤1%
Frequency Stability: ≤0.01%
Voltage Stability: ±1%
Harmonic Distortion: ≤2%
Crest Factor: ≤2%
Recovery Time (50% Chg.): ≤15ms
Display Accuracy U: ±0.5% FS + 5 dig
Display Accuracy I: ±0.5% FS + 5 dig
Display Accuracy P: ±0.5% FS + 5 dig
Display Accuracy F: ±0.01% FS + 5 dig
Setting Accuracy U ±1% FS
Setting Accuracy F: ±0.1% FS
Ext. Control Analoque: No
Ext. Feedback Analoque: No
RS232: Yes (only 51XXX Models)
RS485: No
RS422: No
Open Protocol: Yes
Modbus-RTU: No
Interlock: Yes*
Ext. Outp. On/Off Contrl.: Yes*

* Optional

AC Laboratory Power Supplies of the DF-S series provide excellent stability, precision, performance and functionality in a compact laboratory power supply. The ARM microprocessor-based advanced digital controller provides fast response times and constant output monitoring, resulting in high stability and accuracy. Partly equipped with RS232 connection (51XXX models), the power supply can be controlled via an open protocol, the front panel also allows easy setting and monitoring of the output values ​​even in autonomous operation. Designed for laboratory and industrial use, AC power supplies of the DF-S series can also be operated 24/7 completely maintenance free and feature a strong overpower capacity of 300% for 2s plus 1.5x the maximum rated current for 100ms.


The following is a brief description of the possible additional options for laboratory power supplies of the DF-S series. A detailed description can be found in the datasheet of the series, should you have any questions contact our support during our opening hours via the live chat or by e-mail and we will gladly assist you.

[A] Interlock
For security reasons, the power supply output can be enabled / stays enabled only as long as the interlock loop is closed.

Laboratory Power Supply Configurator

Select a voltage, current, power combination from the model list by clicking on the corresponding line. Then configure the model with additional options, the configuration is displayed at the bottom of the screen in the configurator. Press “CONFIRM” to end the configuration and to proceed with the request. Fill out the required fields and send your request to our support team by pressing the “REQUEST” button, you will receive an offer by e-mail within a few minutes.

Model Phase Voltage Current (LV) Current (FS) Power Price Price / Performance
DF-S500035 1 300Vrms L-N 3 A 1.5 A 350 VA 570,00 € 1,63 €

DF-S50007 1 300Vrms L-N 6 A 3 A 700 VA 660,00 € 0,94 €
DF-S50012 1 300Vrms L-N 10 A 5 A 1200 VA 770,00 € 0,64 €
DF-S51005 1 300Vrms L-N 4.2 A 2.1 A 500 VA 660,00 € 1,32 €
DF-S5101 1 300Vrms L-N 8.4 A 4.2 A 1000 VA 770,00 € 0,77 €
DF-S5102 1 300Vrms L-N 16.8 A 8.4 A 2000 VA 1.020,00 € 0,51 €
DF-S5103 1 300Vrms L-N 25 A 12.5 A 3000 VA 1.450,00 € 0,48 €

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