Indoor Meters with Integrated DC Voltage and Current Sensors


HaslerRail has been serving the rail industry since 1887. With thousands of installations in service worldwide, we have built up broad, deep knowledge of energy metering and management for rolling stock. Our indoor meters integrate a broad range of capabilities, including DC voltage and current sensors.

  • Energy measurement and traction control
  • Suitable for distributed traction architectures
  • Current loop or serial interface for noise immunity
  • Optional analog and serial interfaces
  • External shunt to adapt current to consumption
  • Insulated input terminals for limited space
  • Safe against internal arcs
  • Expert customer support
  • Worldwide after-sales serviceCEBD
  • Can be used as DHS

Sécheron Hasler Group’s soon-to-be-released iTEMS-DHS is a compact, stand-alone device that measures train energy consumption. A small form factor and unique integration architecture make it ideal for solving space problems. It integrates the Voltage Measurement Function (VMF), the Current Measurement Function (CMF), the Energy Calculation Function (CMF), and the Data Handling System (DHS). It is suitable for indoor applications requiring voltage detection, traction control, and energy measurement on systems from 600 VDC to 3,000 VDC.

The device also produces and records Compiled Energy Billing Data (CEBD) by combining energy data with time, location and other data, and transfers it via the integrated communication module (GSM-R, 3G, 4G, or Wi-Fi) to the ground-based Data Collection System (DCS).

iTEMS can be delivered as a stand-alone device for installation by car builders and operators. It can also be integrated into Sécheron Hasler Group’s MODBOX® enclosures, or with Sécheron Hasler Group’s comprehensive Energy Management System, which also includes the REM102 Energy Meter with DHS and DCS.

All of our products are backed by HaslerRail experts, who provide recommendations and support throughout the project lifecycle, and Sécheron Hasler Group’s worldwide network of service locations for assistance throughout the product lifetime.

  • DC applications: 600V, 750V, 1.5KV and 3KV
  • Maximum permanent measured voltage 4500 V
  • Maximum peak measured voltage 4500 V
  • Impulse withstand voltage 40 kV
  • Overvoltage category OV4
  • Optional 2+2 isolated analog outputs, current loop type
  • Bipolar type outputs
  • Bipolar output: maximum output current = 20mA
  • Measuring resistance: 10 to 200 Ohms
  • VMF, CMF Accuracy class 0.5R
  • ECF Accuracy class 0.2R
  • Ethernet interface for onboard communication
  • Optional MVB-ESD interface
  • Optional CAN interface
  • Optional POE power supply
  • Auxiliary supply voltage models: 24 VDC , 36-48 VDC, 72-110VDC
  • Vertical & horizontal installation
  • Indoor installation
  • Protection index IP51
  • Dimensions: 170mm(H) x 200mm(D) x 130 (W)
  • Weight: 3.5 kg
  • Suitable for ambient temperature – 40°C to +70°C
  • Reference standards: EN 50463-2 / IEC 62888-2


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