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Gustav Klein

I-TS-3840 – DC Source/Sink

The I-TS-3840 from Gustav Klein is a highly dynamic, bidirectional DC power supply designed for advanced battery testing and battery emulation. It enables seamless and continuous transitions between source and sink operation, ensuring uninterrupted performance.

This single-channel system is available in standard configurations of 1200 V and 1500 V, delivering up to 650 kW in standalone mode and scaling up to 2.6 MW in parallel operation. Its exceptional performance makes it ideal for a wide range of applications across the automotive, hydrogen, and laboratory sectors.

Features and equipment

General Characteristics

  • Main switch
  • Safety controller for Performance Level d ( PLd ) according to ISO 13849-1 / EN 60204-1  
  • Display with touch operation , Analog voltmeter in cabinet door 
  • Tester/ Simulator switchable 
  • DC contactors with increased short-time current carrying capacity 
  • Connection terminals for DC voltage measurement (accuracy 0.1% with sense lines) 
  • Connection terminals for external “emergency stop” and “stop” 
  • Modbus TCP/IP interface; CAN bus (“100 Hz” with  dbc file); VNC over Ethernet

Typical Applications

  • Battery tests (charging and discharging tests of batteries)
  • Battery simulation / battery emulation
  • Load for fuel cells 
  • Test power supply for contactors, fuses and circuit breakers
  • Testing of DC motors (drive train)
  • EV / EVSE Testing

Technical Data

Specification Details
Input Voltage / Input Frequency 380V 3/PE ±10% ; 400V 3/PE ±10%
50Hz ±5% ; 60Hz ±5%
Measurement Resolution Voltage: 16-bit ADC
Current: 16-bit ADC
Control Accuracy Voltage: 0.1% fs
Current: 0.1% fs
Residual Ripple Voltage ≤ 0.1% RMS fs
Current ≤ 0.1% RMS fs
Dynamic Voltage Tolerance
(0–100% | Nominal in 3 ms)
Battery tester < 3% fs
Battery emulator < 1% fs
Short-Circuit Behavior Short-circuit proof:
Systems up to 600 A: Icw: 3 kA
Systems with 1000 A: Icw: 8 kA
Systems with 1200 A: Icw: 15 kA
Reliable Environmental Conditions Storage: EN 60721-3-1
Transport: EN 60721-3-2
Operation: EN 60721-3-3
Environmental Classes 1K21 / 1M11, +5 to +40 °C
2K12 / 2M4, -45 to +70 °C
3K22 / 3M11, +5 to +40 °C
Cooling Air cooling (IP20)
Water cooling (IP54)
Machine Safety – Safety Control Systems EN ISO 13849-1
EN ISO 13849-2
Machine Safety EN 60204-1 except:
Chapter 11.3 Protection class (see Technical Data)
Chapter 13.2 Identification of Ladders
EMC Standards EN 61000-2-4 Class 3
EN 61000-6-2
EN 61000-6-4
EN 55011 (Table 2)
EN 61800-3 Cat. C2 (A1)