SpellmanHV EPM Series 30W High Voltage Power Supplies - Electrophoresis - Electron Beam

EPM Series

  • Output Voltages from 1 to 30kV
  • Voltage and Current Programming
  • Control of Output Via Enable/Inhibit Signal
  • OEM Customization Available

*Note: All specifications are subject to change without notice. Please consult the English PDF version of this datasheet for the most up-to-date revision.

CE RU Marking

30W High Voltage Power Supplies

The EPM series of high voltage power supplies provides very well regulated, low ripple high voltage in a highly efficient, compact design. 

The output voltage and current are controllable over the full range of operation. Voltage and current program­ming and monitoring signals are all 0-10Vdc where corresponds to 0 to 100% rated output. A High Voltage Inhibit/Enable signal allows for simple on/off control of the power supply.  

Typical applications:

  • Electrophoresis
  • Photomultipliers
  • Electron Beam
  • Laboratory Applications
  • Ion Source
  • Electrospinning


(Ref. 128003-001 REV. P)


+24Vdc ±10% @ 2A


8 models from 1kV to 30kV. Each model is available in positive or negative polarity output.

Voltage Regulation:

Load: 0.02% of output voltage for a full load change.

Line: 0.01% for ±10% change in input voltage.

Current Regulation:

Load: 0.01% of output current from 0 to rated voltage.

Line: 0.01% of rated current over specified input range.


0.1% p-p of maximum rated output voltage.


2.06”H x 5.63”W x 5.69”D

(52.32mm x 143mm x 144.53mm)


2.2 pounds (1kg)

Input Connector:

9 pin AMP Metri-Mate. Mating connector and pins supplied.

Output Cable:

18” ±1” (457mm) of UL® listed high voltage wire.

Voltage Stability:

0.02% per 8 hours (after 1/2 hour warm-up).

Voltage Temperature Coefficient:

0.01% per °C.

Voltage Test Point:

10Vdc ±2% = maximum rated output.

Current Test Point:

10Vdc ±2% = maximum rated output.

Remote Enable:

3.4Vdc = HV ON.

1.0Vdc or open = HV OFF.

Regulatory Approvals:

Compliant to EEC EMC Directive (1kV to 15kV only).

Compliant to EEC Low Voltage Directive (1kV to 15kV only).

UL/CUL recognized, File E148969 (1kV to 15kV only).


Maximum Rating Model Number
kV mA  
1 30 EPM 1*30
3 10 EPM 3*30
5 6 EPM 5*30
10 3 EPM 10*30
15 2 EPM 15*30
20 1.5 EPM 20*30
25 1.2 EPM 25*30
30 1 EPM 30*30

 *Specify “P” for positive polarity or “N” for negative polarity.


Pin Signal Parameters
1 Power Ground Power Ground
2 +24Vdc +24Vdc @ 1.85 amps, maximum
3 High Voltage Enable/Inhibit 0Vdc = HV OFF, +5Vdc = HV ON (see manual for details)
4 Voltage Test Point 0 to 10Vdc = 0 to 100% rated output, Zout = 10kΩ
5 Current Test Point 0 to 10Vdc = 0 to 100% rated output, Zout = 10kΩ
6 Voltage Programming 0 to 10Vdc = 0 to 100% rated output, Zin = 10MΩ
7 Current Programming 0 to 10Vdc = 0 to 100% rated output, Zin = 10MΩ
8 +10Vdc Reference +10Vdc @ 1mA maximum
9 Signal Ground Signal Ground

Tables & Diagrams