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HV Breakout Module 3.3, 3.3C HV Breakout Module 3.3

HV Breakout Modules 3.3, 3.3C

Three-phase measurement of internal conductor current and voltage with direct XCP-on-Ethernet output for real-time power analysis

The HV Breakout Modules (BM) Type 3.3 have been specially designed for safe and precise three-phase measurement in HV power cables. The inner conductor currents and outer conductor voltages are directly acquired and output via XCP-on-Ethernet.


  • Synchronous measurement of voltages U12, U23, U31 and internal conductor currents (I) of L1, L2, L3 in HV applications
    • Voltages up to ±1,000 V (measurement range up to ±2,000 V)
    • Currents up to ±800 A (rated ), ±1,400 A (peak)
  • GBit/s XCP-on-Ethernet interface, measurement data rate up to 2 MHz per measured variable
  • Options:

  • Optional calculation of power and RMS values directly in the module and output via XCP-on-Ethernet and CAN
  • In-depth online power analysis with the Vector eMobilityAnalyzer software
HV Breakout Module Type 3.3 und Type 3.3C
HV Breakout Module Type 3.3 and Type 3.3C


HV Breakout Module 3.3 can be used to perform three-phase power analyses directly in HV lines.

For this purpose, the HV Breakout Module 3.3 is inserted directly into the HV power cables by feeding the cables through cable glands into the interior of the module and connecting them there using ring terminals.

The HV Breakout Module 3.3C is connected to the cables via a PowerLok connector system and is interlock capable. This makes this variant particularly suitable for use in test benches.

The outer conductor voltages are measured directly. Current measurement is carried out via shunt modules which contain, among other things, a temperature sensor and a memory for calibration data for automatic online temperature compensation.

The sampling of voltage and current with immediate digitization in the aluminum housing of the HV Breakout Module provides optimum protection against electromagnetic interference.

Calculation of power and RMS values

With the option Calc. active, apparent and reactive power, power factor as well as the RMS values for current and voltage can be calculated directly in the module from the sampled measured values. Via XCP-on-Ethernet and CAN the calculated values are directly transmitted to the measurement computer or a data logger.

Technical Data

HV Breakout Module Type 3.3 HV Breakout Module Type 3.3C
Inputs HV power cable for each phase
Number of measured phases 3
HV+/HV- power cable connection Ring terminals
(via cable glands)
PL300 plug-in system
Number of cable glands 3
per side
Cable outer diameter 9 mm to 25 mm
See datasheet
Measurement signals Inner conductor current and voltage
Inner conductor current
(rated current)
From ±500 to ±800 A
Four configurable measurement ranges, depending on shunt module used. See datasheet.
Voltage ±200, ±500, ±1,000, ±2,000 V
For the acquisition of transient overvoltage, the measuring range is dimensioned to ±2,000 V.
Measurement data rate
XCP-on-Ethernet 1, 2, 5, 10, 20, 50, 100, 200, 500, 1,000, 2,000 kHz
CAN 1, 2, 5, 10, 20, 50, 100, 200, 500 Hz, 1, 2, 5 kHz
Output signals
XCP-on-Ethernet/CAN Voltage, current

With option Calc. additionally: RMS values for voltage and current, active power, apparent power, reactive power and power factor Lambda
Integration time RMS value and power calculation 10 ms to 10 s
Operating conditions
Housing protection class IP67
Operating temperature range -40°C to +120°C
Pollution degree 4

XCP-Gateway Options

The measurement modules include an internal XCP gateway. Various options make it easy to expand the module to meet specific requirements.

Designation PTP / IEEE1588 CSM PAK AddOn XCP-Gateway
HV BM 3.3 and 3.3C
HV Breakout Module Type 3.3 front view
HV Breakout Module Type 3.3 front view
HV Breakout Module Type 3.3 top view
HV Breakout Module Type 3.3 top view
HV Breakout Modul Type 3.3C front view
HV Breakout Modul Type 3.3C front view


The two versions of the HV Breakout Module 3.3 enable the electrical power analysis of electric vehicle motors without the use of classic power meters and current transformers. The modules are suitable for use in powertrain test benches as well as for mobile real-time measurement in the high-voltage electrical system of test vehicles.

The three-phase measurement with only one measurement device offers enormous installation, cost and space advantages.

The direct output of power and RMS values allows various analyses without the use of special hardware and software in the road test. More in-depth analyses, such as the investigation of leakage currents and symmetries as well as the correlation with measured values from further CSM measurement modules (e.g. temperatures) can be performed with the Vector CSM E-Mobility Measurement System.

Measurement between inverter and electric motor
Measurement between inverter and electric motor


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Firmware for HV BM 3.3 and HV SAM 3.3

384.43 MB
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  • Configuration software for CSM measurement modules (incl. documentation)
  • with visualization software CSMview
  • System requirements: