Maximum values of the series: 300Vrms L-N / 42A / 3KVA / ØPL = 1.20€/W

Output phases:1Display accuracy I:±0.5% FS + 5 dig
Voltage range:0 ... 300Vrms L-NDisplay accuracy P:±0.5% FS + 5 dig
Current range:0 ... 42A L-NDisplay accuracy F:±0.01% FS + 5 dig
Frequency range:45Hz ... 250HzSetting accuracy U±1% FS
Power range:0 ... 3KVASetting accuracy F:±0.1% FS
Cabinet:Table-top unitExt. control analogue:No
Regulation:UExt. feedback analogue:No
Load regulation U:≤1%RS232:Yes (51XXX models only)
Mains 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% change):≤15msInterlock:Yes*
Display accuracy U:±0.5% FS + 5 digExt. output On/Off Ctrl..:Yes*
Output phases:1
Voltage range:0 ... 300Vrms L-N
Current range:0 ... 42A L-N
Frequency range:45Hz ... 250Hz
Power range:0 ... 3KVA
Cabinet:Table-top unit
Load regulation U:≤1%
Mains regulation U:≤1%
Frequency stability:≤0.01%
Voltage stability:±1%
Harmonic distortion:≤2%
Crest Factor:≤2%
Recovery Time (50% change):≤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 analogue:No
Ext. feedback analogue:No
RS232:Yes (51XXX models only)
Open protocol:Yes
Modbus RTU:No
Ext. output On/Off Ctrl..:Yes*

* Optional

AC Laboratory Power Supplies of the DF-S series offer excellent stability, precision, performance and functionality in a compact laboratory power supply. The advanced ARM microprocessor-based digital control provides fast response times and constant monitoring of output values, resulting in high stability and accuracy. Partially equipped with RS232 connection (51XXX models), these alternating current laboratory power supplies 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 Laboratory Power Supplies of the DF-S Series can also be operated 24/7 in continuous use and have a strong overload capacity of 300% for 2s plus 1.5 times the maximum rated current for 100ms.

Additional options

The following is a brief description of the additional options for AC laboratory power supply units of the DF-S Series. A detailed description can be found in the data sheet of the series. If you have any questions, please contact our support via live chat or by e-mail during our opening hours and we will be happy to help you.

[A] Interlock Loop
Deactivates the output of the power supply, if the interlock loop is open.

laboratory power supply configurator

Select a suitable voltage, current and power combination from the model list by clicking on the corresponding line. Then configure the model by adding additional options, the configuration is displayed at the bottom of the screen in the configurator. Press "Next" to finish the configuration and proceed to the creation of the enquiry. Fill in the necessary fields and send your enquiry to our support by pressing the "Enquire" button, you will receive a quote by e-mail within a few minutes.

ModelPriceOutput typeOutput voltageOutput current 0 ... 150Vrms L-NOutput current 0 ... 300Vrms L-NPowerOutput frequencyDisplay resolution FDisplay resolution UDisplay resolution IDisplay resolution PVoltage stabilityFrequency stabilityHarmonic distortionCrest factorLoad regulation ULoad regulation ILine regulation ULine regulation I
DF-S500121.440,00 Variable AC true sine wave 1 phase0 ... 300Vrms L-N0 ... 10A0 ... 5A0 ... 1.2kVA45Hz ... 250Hz0.01Hz10mV1mA1W±1%≤0.01%≤2%≤2%≤1%≤1%
DF-S51021.770,00 Variable AC true sine wave 1 phase0 ... 300Vrms L-N0 ... 16.8A0 ... 8.4A0 ... 2kVA45Hz ... 250Hz0.01Hz10mV1mA1W±1%≤0.01%≤2%≤2%≤1%≤1%
DF-S51032.070,00 Variable AC true sine wave 1 phase0 ... 300Vrms L-N0 ... 25A0 ... 12.5A0 ... 3kVA45Hz ... 250Hz0.01Hz10mV1mA1W±1%≤0.01%≤2%≤2%≤1%≤1%
DF-S5000351.100,00 Variable AC true sine wave 1 phase0 ... 300Vrms L-N0 ... 3A0 ... 1.5A0 ... 350VA45Hz ... 250Hz0.01Hz10mV1mA1W±1%≤0.01%≤2%≤2%≤1%≤1%
DF-S510051.270,00 Variable AC true sine wave 1 phase0 ... 300Vrms L-N0 ... 4.2A0 ... 2.1A0 ... 500VA45Hz ... 250Hz0.01Hz10mV0.1mA1W±1%≤0.01%≤2%≤2%≤1%≤1%
DF-S500071.230,00 Variable AC true sine wave 1 phase0 ... 300Vrms L-N0 ... 6A0 ... 3A0 ... 700VA45Hz ... 250Hz0.01Hz10mV1mA1W±1%≤0.01%≤2%≤2%≤1%≤1%
DF-S51011.430,00 Variable AC true sine wave 1 phase0 ... 300Vrms L-N0 ... 8.4A0 ... 4.2A0 ... 1kVA45Hz ... 250Hz0.01Hz10mV0.1mA1W±1%≤0.01%≤2%≤2%≤1%≤1%