Single or Three Phase Power Source

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LSX Series

Single- or Three-Phase Power Source, 1.5 to 6 kVA

LSX Series – Flexible Single & Three-Phase AC Power Solutions The LSX Series delivers 1.5–6 kVA/kW of reliable AC power in both single-phase and three-phase configurations, offering exceptional flexibility for a wide range of applications. Powered by an advanced PWM controller, it ensures cost-effective frequency conversion along with precise performance for power disturbance testing, aerospace compliance, ATE systems, appliances, and UPS applications. Engineered for durability and consistency, the LSX Series is built to perform under demanding conditions, with ratings that account for worst-case input scenarios, voltage variations, power factor, and temperature conditions—ensuring dependable operation at all times.

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 Specifications

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 provides the operator with the ability to dynamically control the output impedance of the AC Power Source. Using the output current term as conditioned feedback signal to the output voltage circuits, positive or negative impedance may be programmed. This control simulates the effects of, or compensates for high peak current, distribution, or transformer losses of up to ±10% of the output voltage. This feature creates positive, negative, or zero output impedance (Zo).

Wide Selection of Voltage Ranges (T Option)

All LSX Series models support direct coupled output voltages up to 135VLN or 270VLL on single phase models or 135VLN/234VLL on three phase models. For higher voltage output applications on three phase models, the transformer option (T-Option) offers three transformer coupled output ranges at ratios of 1.5:1, 2.0:1 or 2.5:1 for a maximum output voltage of 600VLL in split phase or or 585VLL in three phase mode.

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 output transients are easily created from the front panel using an intuitive spreadsheet style data entry method. Data may be entered for a specific phase or for all three phases at the same time. The LSX Series supports LIST, PULSE and STEP Mode Transient Types. In addition to sine wave, the LSX Series offers multiple selectable AC waveforms such as clipped sine wave at various distortion levels, square, triangle and stepped squares.

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

Get access to SmartSource Suite, our proprietary built-in platform that allows full remote control, development, and execution of test sequences in real-time. Intelligently monitor, control, and manage testing using the intuitive embedded web browser interface on any mobile device

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

LSX Series Low Power AC Source Manual

Manual

Regenerative AC+ DC Electronic load

Regenerative DC Electronic load