Single or Three Phase Power Source

Q: What is the LSX Series?

The LSX Series is a programmable AC power source that supports single‑phase and three‑phase operation , designed for flexible power testing across R&D, validation, and production environments.

Home Products Programmable AC Power Supply Single or Three Phase Power Source

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LSX Series

Programmable AC Power Source 1.5kVA to 6kVA

The LSX Series Flexible Single & Three-Phase AC Power Solutions deliver 1.5–6 kVA/kW of reliable AC power in both single-phase and three-phase configurations. Designed for maximum flexibility across a wide range of applications, the LSX Series utilizes advanced PWM control technology to provide cost-effective frequency conversion with precise performance for power disturbance testing, aerospace compliance, ATE systems, and UPS applications. Built for long-term reliability and consistent operation, the LSX Series performs dependably under demanding conditions, including voltage variations, power factor changes, and temperature fluctuations.

Power:

1.5kVA to 6kVA

Voltage:

0 – 135Vac L-N
(Transformer Options to 2.5x)

Frequency:

15Hz-1200Hz

Why Choose LSX Series

Low Power

Ideal for low-power applications

Advanced Programming Capability

Create sophisticated transient waveforms

Proven, Long-Term Reliability

The low power choice for ATE, military/defense programs

Programmable Impedance

Excellent output voltage and load regulation

Key Features

Single and Three-Phase Models
1.5kVA to 2kVA models in 3U Chassis
4.5kVA to 6kVA models in 5U Chassis
Constant Power Voltage: 0 – 135 Vac L-N (Transformer Options to 2.5x)
High Frequency Conversion
Full Galvanic Isolation from Facility AC Input to Load Input and Between Input Phases / Channels
Advanced waveform capture & scope function
Safety Programmable Protection Limits for real power, apparent power, overvoltage, and overtemperature
Programmable Impedance
Full current into very low power factor reactive loads
Harmonics measurement
Sine, Square, Triangle, THD, and Arbitrary waveforms
Phase Angle Programming on 3ø Models
Current, Apparent Power & True Power on all Phases

200 programs for arbitrary waveforms & transients (List, Pulse, Step Modes)
Up to 0-300Vac Direct Coupled Output (split phase)
Single phase power source models may be controlled to operate on either a 0-135Vac range or a 0-270Vac range. Three phase models are additionally switchable 3ø to 1ø output power form.
Precision True-RMS metering of Volts, Amps, Power, VA, Power Factor and Crest Factor
Precision Voltage Programming – 0.02% with Continuous Self Calibration (CSC)
Extensive Analog and Digital I/O for system integration
RS-232, USB, Modbus, TCP, GPIB, SCPI compatibility; IVI Instrument Drivers
CE (EMC/Safety) Marked
Built-In SmartSource Suite Remote Control Platform
LSXM model supports manual frequency conversion, while full LSX versions enable harmonic testing and advanced transient simulation.

Linear AC Source for Cleanest Power and Lowest Distortion

Programmable Output Impedance for Dynamic Control of AC Source

Programmable output impedance enables precise control of AC source characteristics by dynamically adjusting output impedance. Through conditioned feedback applied to the output voltage circuits, users can program positive, negative, or zero impedance values. This capability allows simulation or compensation of high peak currents, distribution effects, and transformer losses, supporting output voltage adjustments of up to ±10%.

Positive, negative, or zero output impedance control
Dynamic load regulation capability
Enhanced simulation of real-world power conditions

Wide Selection of Voltage Ranges (T Option)

All LSX Series models support direct-coupled output voltages up to 135VLN or 270VLL in single-phase operation. For applications requiring higher output voltages, optional transformer-coupled configurations provide output voltage ranges up to 600VLL in split-phase mode and 585VLL in three-phase mode.

Multiple voltage range options
Easy transition between direct-coupled and transformer-coupled outputs
Increased testing flexibility

Flexibility to add more voltage later
Automatic switching between direct coupled output voltage range and transformer coupled voltage range

Generate Advanced Waveforms and Transients

Voltage, waveform, and frequency outputs can be programmed directly from the front panel using an intuitive spreadsheet-style data entry interface. Data may be entered independently for each phase or synchronized across phases. Built-in transient modes include List, Pulse, and Step operation, while waveform generation supports clipped sine, square, triangle, stepped square, THD, and arbitrary waveforms.

Over 200 arbitrary waveform storage locations
List, Pulse, and Step transient generation modes
Sine, Square, Triangle, THD, and Arbitrary waveform generation

Over 200 arbitrary waveforms to customize
LIST, PULSE, STEP mode transient types
Sine, Square, Triangle, THD and Arbitrary waveforms

Simplify Testing with Smart Control, Built-In

SmartSource Suite provides a browser-based platform for real-time monitoring, control, development, and execution of automated test sequences. The intuitive interface enables efficient system management from desktop and mobile devices.

Browser-based remote access
Enhanced visualization and reporting tools
Multi-window monitoring and control
Improved productivity and reduced setup time

Access on any web browser in real-time
Enhanced visualization and reporting tools
View and control on multiple windows
Save time and increase productivity

Featured App Note

The Importance of Programmable Output Impedance

Single Phase Models

Model	Rated Power (VA)	Voltage Max (L-N/L-L) (Vrms)	Rated Current Max (Arms)	Output Frequency (Hz)	AC Input	U	CTA
115LSX(T)	1500	Direct: 132 Transformer option: 0-198 (T 1.5:1), 0-264 (T 2.0:1), 0-330 (T 2.5:1)	Direct: 16 Transformer: 10.7 (T 1.5:1), 8.0 (T 2.0:1), 6.4 (T 2.5:1)	15-1200	1Ø	3	Buy / Rent
120LSX	2000	Direct: 150/300	Direct: 20/14	15-1200	1Ø	3	Buy / Rent
140LSX(T)	4000	Direct: 135/270 Transformer option: 202/404 (T 1.5:1), 270/540 (T 2.0:1), 338/600 (T 2.5:1)	Direct: 32/16 Transformer: 21.3/10.7 (T 1.5:1), 16.0/8.0 (T 2.0:1), 12.8/6.4 (T 2.5:1)	15-1200	3Ø	8	Buy / Rent
160LSX(T)	6000	Direct: 132/264 Transformer option: 198/396 (T 1.5:1), 264/528 (T 2.0:1), 330/600 (T 2.5:1)	Direct: 48/16 Transformer: 32/10.6 (T 1.5:1), 24/8 (T 2.0:1), 19.2/6.4 (T 2.5:1)	15-1200	3Ø	8	Buy / Rent

Three Phase Models

Model	Rated Power (VA)	Voltage Max (L-N/L-L) (Vrms)	Rated Current Max (Arms)	Output Frequency (Hz)	AC Input	U	CTA
315LSX	1500	Direct: 1Ø: 132/264 3Ø: 132	Direct: 1Ø: 12/8 3Ø: 4/0	15-1200	1Ø	3	Buy / Rent
320LSX	2000	Direct: 1Ø: 150/300 3Ø: 150	Direct: 1Ø: 20/12 3Ø: 7/0	15-1200	1Ø	3	Buy / Rent
345LSX(T)	4500	Direct: 1Ø: 135/270 3Ø: 135 Transformer option: T 1.5:1 (1Ø): 202/404 T 1.5:1 (3Ø): 202/350 T 2.0:1 (1Ø): 270/540 T 2.0:1 (3Ø): 270/468 T 2.5:1 (1Ø): 338/600 T 2.5:1 (3Ø): 338/585	Direct: 1Ø: 36/12 3Ø: 12 Transformer: T 1.5:1 (1Ø): 24/8 T 1.5:1 (3Ø): 8/0 T 2.0:1 (1Ø): 18/6 T 2.0:1 (3Ø): 6/0 T 2.5:1 (1Ø): 14.4/4.8 T 2.5:1 (3Ø): 4.8/0	15-1200	3Ø	8	Buy / Rent
360LSX(T)	6000	Direct: 1Ø: 132/264 3Ø: 132 Transformer option: T 1.5:1 (1Ø): 198/396 T 1.5:1 (3Ø): 198/342 T 2.0:1 (1Ø): 264/528 T 2.0:1 (3Ø): 264/457 T 2.5:1 (1Ø): 330/600 T 2.5:1 (3Ø): 330/572	Direct: 1Ø: 48/16 3Ø: 16 Transformer: T 1.5:1 (1Ø): 32/10.7 T 1.5:1 (3Ø): 10.7 T 2.0:1 (1Ø): 24/8 T 2.0:1 (3Ø): 8 T 2.5:1 (1Ø): 19.2/6.4 T 2.5:1 (3Ø): 6.4	15-1200	3Ø	8	Buy / Rent

All single phase output units (Model 115LSX excepted) are operable with dual voltage ranges as listed. Three phase units are operable as single phase with dual voltage range capability or as three phase. Output voltage ranges and 1ø/3ø conversions are selected by front panel or bus commands.
Output voltage ranges listed are for standard units. VMAX is output voltage with nominal input and full rated load applied. Other voltage ranges are available with the output magnetics options.
Peak Repetitive Pulse Current.
Single phase input: 100, 110, 120, 208, 220 and 240 VAC ±10%. Three phase input: 208,220,240,380,416 and 480 VAC ±10%. (480 V input and 400 Hz input are each available as a cost option.)

Title

Document Type

LSX Series Low Power AC Source Datasheet

Datasheet

FAQ

What is the LSX Series?

The LSX Series is a programmable AC power source that supports single‑phase and three‑phase operation, designed for flexible power testing across R&D, validation, and production environments.

Who typically uses the LSX Series?

The LSX Series is commonly used by:

Aerospace & Defense
ATE applications
Power Supplies
Low Power Converters
Medical
White Goods, Appliances, HVAC

Low Power AC only

Regenerative DC Electronic Load

AC Current Source

AC & DC Current Source