Our Product Ranges

AC or DC Electronic Loads

DC Loads

TRL Series – Mobile Regenerative

  • Input voltage up to 1,200 V
  • Load current up to 60 A
  • Power 1,000 W
  • Energy recycling to local power grid
  • Mobile mains connection via plug
Learn more

PLA Series – Small

  • Input voltage up to 800 V
  • Load current up to 120 A
  • Power from 200 W to 1,200 W
  • Digital Master-Slave operation
  • Load inputs at front and rear 
Learn more

PLI Series – Powerful

  • Input voltage up to 1,200 V
  • Load current up to 2,700 A
  • Power from 600 W to 28,800 W
  • Large functional scope
  • High dynamic
Learn more

SCL Series – High Current

  • Input voltage up to 12 V or up to 40 V
  • Load current up to 1,200 A
  • Power from 600 W to 1,800 W
  • High current carrying capacity
  • Modern touch operation
Learn more

AC Loads

ACL Series – 1 or 3-Phase

  • Voltage up to 3 x 500 V
  • Load current up to 3 x 60 A
  • Power from 3 x 1,400 W to 3 x 8,400 W
  • Frequency range up to 1,000 Hz
  • For three-phase applications
Learn more

Features

  • Frequency range up to 1,000 Hz
  • Single-phase and three-phase devices
  • Input voltage 280 V and 500 V
  • Single-phase power from 500 W to 21,000 W
  • Three-phase power from 3 x 1,400 W to 3 x 8,400 W
  • Parallel, in star or in delta connectable
  • User interface with 4.3″ touchscreen
  • Operation by mouse
  • Operating modes constant current, constant resistance, constant voltage, constant power
  • Arbitrary current waveforms
  • Uninterrupted change of waveforms
  • Synchronization to load input, line or extern
  • Variable phase cut from -180° to +180°
  • Variable crest factor up to 4
  • Automatic amplitude correction
  • Variable phase shift in combination with crest factor
  • Harmonics up to the 25th order, even and odd
  • Variable current protection
  • List operation, also with three-phase current
  • LAN, USB, RS-232 standard, GPIB optional
  • Analog I/O port with real-time signals optional
  • Manual on board

Multi-Channel Loads

PMLA Series – Multi-Channel

  • Input voltage up to 240 V per channel
  • Load current up to 120 A per channel
  • Power up to 1,800 W per device
  • Up to 12 channels in 19″, 2 U
  • Modular conception
Learn more

Features

  • Up to 12 channels in 19“ , 2 U
  • Tailored configurations possible with modules in 4 voltage and 4 power classes
  • 150 W – 300 W – 450 W – 600 W modules
  • Input voltages 40 V – 60 V – 120 V – 240 V
  • Load currents from 1 A to 120 A
  • CC – CV – CR – CP mode
  • Dynamic loads
  • 1,800 W total power
  • Operated via graphical user interface with integrated help system
  • SCPI programming with measurement function
  • Internal measurement data storage
  • Electronic protection
  • Analog monitoring outputs for voltage and current
  • Analog control input
  • Extensive data interfaces
  • 19 inch mountable
  • Channel expansion via Slave devices
  • Trigger system
  • MPP tracking
  • Discharge function
  • Watchdog function
  • LabVIEW drivers and software tools available for download
  • 2 free calibrations

Source-Sink

QL Series – Source-Sink

  • Voltage up to 100 V
  • Current up to 220 A
  • Power up to 3,600 W
  • 2- or 4-quadrant version
Learn more

Features

  • Voltage up to 100 V
  • Currents up to 320 A
  • 2-quadrant or 4-quadrant design
  • DC source-sink
  • Additional AC source for 4-quadrant models
  • User interface with 4.3″ touch screen
  • Basic operating modes CC, CV, CP, CR
  • Combined operating modes CC+CV, CV+CC
  • Adjustable upper and lower limits for V and I
  • Adjustable internal resistance in CC and CV modes
  • Capacitance simulation
  • Internal resistance measurement
  • List function with synchronous data acquisition
  • Rectangular, PWM and modulation function
  • Trigger model
  • SCPI programming with measurement functions
  • RS-232, USB, LAN, CAN, I/O port standard
  • GPIB optional
  • Isolated I/O port optional
  • Analog monitoring outputs for voltage and current
  • Analog control inputs for control V/I and limit V/I
  • Save settings
  • Electronic protection
  • Bilingual help system (DE, EN)
  • 2 free calibrations (with registration)

Power Distribution

SE Series – Central Mains Supply

  • Voltage up to 3 x 400 V
  • Current up to 32 A
  • Various mains configurations
  • Emergency stop function
Learn more

Features

H&H power distribution units are designed for the construction of comprehensive test facilities in connection with electronic loads. They serve as a central mains switch with emergency stop function, whereby the emergency stop can also be integrated into a higher-level emergency stop system. Each circuit is individually fused. Some of the devices are equipped with their own residual current circuit breaker. An integrated DC power supply extends the flexibility.

  • Central mains switch
  • Emergency stop function
  • Also with residual circuit breaker
  • Can be integrated into external emergency stop systems
  • All circuits individually fused
  • Built-in DC power supply on most models