STR Series
- 6kW’s in Single 6U (10.5”) Chassi
- Models from 1kV to 150kV
- Remote Analog and Remote Ethernet Interface
- Arc and Short Circuit Protected
- Customer Configurable Features Via Ethernet Interface
- OEM Customization Available
Certifications & Compliance
6kW High Voltage Power Supplies
Spellman’s STR Series of 6kW high voltage power supplies are available in positive or negative polarities in 19 different models with outputs ranging from 1kV to 150kV. A full featured front panel allows easy local control, while an extensive analog interface provides comprehensive remote capability. The standard Ethernet and RS-232 digital interfaces simplify integrating the STR into your system design.
The STR’s robust IGBT inverter is inherently fault tolerant and is ideal for demanding applications like semiconductor processing and vacuum deposition. Many operational features can be configured by the user to suit their particular requirements.
Digital Interface
The STR features a standard RS-232 and Ethernet digital interface. Utilizing these standard digital interfaces can dramatically simplify power supply interfacing requirements saving the user both time and money, while enhancing functionality and overall capability. Spellman provides a GUI with the STR that allows the customer to both customize operational features of the STR while also providing basic power supply operational features. Details of the STR’s digital interface capability are described in detail in the STR manual, downloadable via the link on the first page of this data sheet.
- Specifications
- Models
- How to Order
- Downloads
Specifications
- Input Voltage:
Standard:
180-264Vac, 50/60Hz, three phase, 90% efficiency, 0.85 power factor
Optional:
360-528Vac 50/60Hz, three phase (400VAC) 180-264Vac 50/60Hz, single phase (1PH) - Input Current:
Standard:
180-264Vac, three phase 25 amps, maximum
Optional:
360-528Vac, three phase 12.5 amps, maximum 180-264Vac, single phase 57 amps, maximum - Output Voltage:
19 models from 1kV to 150kV. Each model is available with positive or negative outputs. 1kV to 10kV units are internally reversible. - Dimensions:
1kV to 120kV:
10.5˝ (6U)H X 19˝ W X 21˝ D (266mm x 482mm x 533mm)150kV:
10.5˝ (6U)H X 19˝ W X 23˝ D (266mm x 482mm x 584mm)
Models
| Maximum Rating | Model Number | |
|---|---|---|
| kV | mA | |
| 1 | 6,000 | STR1*6 |
| 2 | 3,000 | STR2*6 |
| 3 | 2,000 | STR3*6 |
| 4 | 1,500 | STR4*6 |
| 6 | 1,000 | STR6*6 |
| 8 | 750 | STR8*6 |
| 10 | 600 | STR10*6 |
| 12 | 500 | STR12*6 |
| 15 | 400 | STR15*6 |
| 20 | 300 | STR20*6 |
| 30 | 200 | STR30*6 |
| 40 | 150 | STR40*6 |
| 50 | 120 | STR50*6 |
| 60 | 100 | STR60*6 |
| 70 | 86 | STR70*6 |
| 80 | 75 | STR80*6 |
| 100 | 60 | STR100*6 |
| 120 | 50 | STR120*6 |
| 150 | 40 | STR150*6 |
*Substitute “P” for positive polarity and “N” for negative polarity.
Polarity must be specified at time of order.
1-10kV units are inherently reversible by design requiring an internal
wiring change to swap polarities. Intermediate voltage units are available
by special order.
How to Order
Typical applications:
- Ion Beam Implantation
- Semiconductor Processing
- Electron Beam Welding
- Capacitor Charging
- High Power RF Transmitters
- Electrostatic Precipitators
- X Ray Systems
Service Solution Brochure
Spellman Repair Centers, Extended Warranty Programs, Preventative Maintenance Programs, Calibration Services and more.
Download2026 High Voltage Reference Manual
We compiled all of our useful FAQ’s, application notes, articles, technical papers and three glossaries into a single handy reference guide.
DownloadSubscribe to our high voltage newsletter
Subscribe to our high voltage newsletter, published quarterly with relevant information on high voltage power supply technology and applications.

