• Cable Connected 150kV @ 1200W Power Supply
  • Only 8.75"" (5U) Panel Height
  • Extensive Analog Interface
  • Arc Quench/Count/Trip with Comprehensive Fault Diagnostics

*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 Marking

1200W High Voltage Power Supplies

Spellman’s SL150kV rack mount high voltage power supply is designed for scientific and industrial OEM applications requiring 150kV at 1200 watts in a compact cable connected standard sized rack. Models are available in positive, negative or reversible polarity.

The SL150kV rack-mount supply is a cable connected power supply and is fully arc and short circuit protected. Excellent regulation specifications are provided along with outstanding stability performance. The vacuum encapsulated high voltage output section assures reliable corona free operation by eliminating any concerns due to environmental factors.

The typical applications for the SL150kV cable connected, rack-mount power supply are:

  • Electrostatics
  • HiPot Testing
  • Semiconductor Processing
  • Capacitor Charging



(Ref. 128062-001 REV. L)

Front Panel Controls:

Front Panel Controls Power ON/OFF switch, HV ON
Switch, HV OFF Switch with preset feature, 3.5 digit
backlight digital meters for display of output voltage
and output current,10 turn locking potentiometers with
counting dials for adjustment of both output voltage
and output current.

Front Panel Indicators:

HV ON                          High Voltage Inhibit
HV OFF                        Over Current
Voltage Control Mode     Over Voltage
Current Control Mode      Arc
Interlock Open               Regulation Error
Interlock Closed             Overtemperature


220Vac ±10%, 50/60Hz @ 12A

200Vac ±10%, 50/60Hz @ 13.2A

Output Voltage:

0 to 150kV

Output Polarity:

Positive, negative or reversible specify at time of order

Output Current:


Output Power:


Voltage Regulation:

Load: 0.01% of rated voltage for a full load change

Line: ±0.01% of rated current over specified input voltage range

Current Regulation:

Load: 0.01% of rated current ±100μA for full voltage change.

Line: ±0.01% of rated current over specified input voltage range


0.1% peak to peak of maximum output

Temperature Coefficient:



100ppm/hr after a 2 hour warm up, for both voltage and current regulation

Operating Temperature:

0 to 40°C operating

Storage Temperature:

-40 to +85°C storage


20% to 85%, non-condensing

Input Line Connector:

3 conductor 12 AWG 6 ft (1.83m) cable, permanently attached

Output Connector:

A detachable 10 ft (3.05m) shielded HV cable is provided


Forced Air


8.75”H x 19”W x 22”D rack mount. (22.23cm x 48.26cm x 55.88cm)


89 pounds (40.4kg)

Regulatory Approvals:

Designed to meet EEC EMC Directive. Designed to meet to EEC Low Voltage Directive. RoHS Compliant.


200 - 200Vac Input Voltage
AOL - Adjustable Overload Trip
APT - Adjustable Power Trip
AT - Arc Trip
BFP - Blank Front Panel
CPC - Constant Power Control
DPM4 - 4.5 Digit Panel Meters
EFR - External Fault Relay
LL(X) - Non-Standard HV Cable Length (10 standard)
NAD - No Arc Detect
NSS - No Slow Start
RFR - Remote Fault Reset
SS(X) - Non-Standard Slow Start (6 seconds standard)

Electronic Component (Power Source)

SL150KV series is intended for installation as a component of a system. It is designed to meet CE standards, with conditions of acceptance often being: customer provided enclosure mounting, EMC filtering, and appropriate protection, and isolation devices. The SL150KV series is not intended to be operated by end users as a stand-alone device. The SL150KV series power supply can only be fully assessed when installed within a system, and as a component part within that system.


Pin Signal Parameters
1 Power Supply Common Signal Ground
2 External Inhibit Ground = Inhibit, Open = HV ON
3 External Interlock +15Vdc @ open, ≤ 5mA @ closed
4 External Interlock Return Connect to pin 3 to enable supply
5 Current Monitor 0 to 10Vdc = 0 to 100% rated voltage, Zout =10kΩ
6 Voltage Monitor 0 to 10Vdc = 0 to 100% rated voltage, Zout =10kΩ
7 +10Vdc Reference +10Vdc @ 1mA, maximum
8 Remote Current Program Input 0 to 10Vdc = 0 to 100% rated voltage, Zout =10kΩ
9 Local Current Program Output Multi-turn front panel pot for local control capability
10 Remote Voltage Program Input 0 to 10Vdc = 0 to 100% rated voltage, Zout =10kΩ
11 Local Voltage Program Output Multi-turn front panel pot for local control capability
12 EFR (Common) External Fault Relay (Optional)
13 EFR (Normally Open) External Fault Relay (Optional)
14 Local HV OFF OUT +15Vdc @ open, <25mA @ closed, connect to
HV OFF for front panel operation
15 HV OFF Connect to HV OFF OUT for front panel operation
16 Remote HV ON +15Vdc @ 10mA maximum = HV OFF
17 Remote HV OFF Indicator 0 = HV ON, +15Vdc @ 10mA maximum = HV O
18 Remote HV ON Indicator 0 = HV OFF, +15Vdc @ 10mA maximum = HV ON
19 Remote Voltage Mode Open collector 50Vdc @ 10mA maximum, ON = Active
20 Remote Current Mode Open collector 50Vdc @ 10mA maximum, ON = Active
21 Remote Power Mode Open collector 50Vdc @ 10mA maximum, ON = Active
22 Power Supply Fault Open collector, 50Vdc @ 10mA maximum
23 +15Vdc Output +15Vdc @ 100mA, maximum
24 Power Supply Ground Signal Ground
25 Shield Return Chassis Ground

Specify “P” for positive polarity or “N” for negative polarity, and PN = reversible as illustrated below.

Sample Model Number: SL150P1200/BFP/LL(20)

Where SL = power supply series, 150 = maximum output voltage in kV,
P = positive output polarity, 1200 = maximum output power (watts), BFP = Blank
Front Panel, LL(20) = 20 foot HV cable.

Tables & Diagrams



SL150kV High Voltage Power Supply (Image 2)


SL150kV High Voltage Power Supply (Image 3)


SL150kV High Voltage Power Supply (Image 4)