Products & Solutions
Current sensors: Precise. Reliable. Safe.
Whether for transportation or industrial applications: the ability to quickly and accurately detect current is required in order to precisely control power electronics systems such as frequency converters, traction converters, UPS systems or welding systems.
Whether for transportation or industrial applications: the ability to quickly and accurately detect current is required in order to precisely control power electronics systems such as frequency converters, traction converters, UPS systems or welding systems. HARTING Hall-effect current sensors have been specifically designed to measure high currents in such environments. These sensors are available for rated currents from 200 to 2000 A, and with a measuring range of up to 4000 A.
Reliable even under extreme conditions
HARTING's current sensors are used in wind turbines, traction converters, welding and solar inverters, as well as in the drive controls for machines and cranes. They comply with a wide range of local requirements.
Easily integrated
HARTING's current sensors can be easily integrated into existing applications. They have standard installation dimensions. Versatile termination techniques and pre-assembled signal cables ensure that the installation is fast and safe. Users do not need to purchase the matching mating connector or the associated cables.
Open-loop current sensor
- Overall accuracy < ±1 % at 25 °C
- Overall accuracy < ±5 % at -40 … +85 °C
- Linearity < 0,5 %
- Response time < 3 μs
- Frequency range 0 … 25 kHz
- Supply voltage ±15 V
- Output signal 4 V at IPN
Closed-loop current sensor
- Overall accuracy < ±0,5 % at 25 °C
- Overall accuracy < ±1 % at -40 … +85 °C
- Linearity < 0,1 %
- Response time < 1 μs
- Frequency range 0 … 100 kHz
- Supply voltage ±15 V … 24 V
- Output signal 100 mA at IPN (typical)
The right current sensor for your requirements
HARTING's current sensors use the magnetic field created by the current flowing through the conductor (the so-called Hall-effect measurement) to carry out an electrically isolated measurement. Depending on the accuracy required, there are two measuring principles which may be used:
Closed-loop current sensors (compensating current sensors) are available for demanding measurement tasks. Open-loop current sensors (direct-imaging current sensors) can be used for less demanding requirements.
HCM current sensors – the series for industrial applications
HARTING, with its HCM series, offers special industrial current sensors. Their functionality is based on the compensation principle (closed-loop).
They feature excellent measuring accuracy and short response times – so the HCM current sensors are ideally suited for precise control tasks (e.g. in frequency converters).
Your benefits at a glance:
- Measures not only direct and alternating currents, but also mixed signals in frequencies ranging from 0 to 100 kHz
- Available in various sizes, compact design, for a rated current range of 200 to 2000 A
- Robust termination technique, including mating connectors, for safe connections even during operations
- Suitable for use under severe conditions: for temperatures ranging from -40 °C to +85 °C
- Compliance with the EN 50178 standard (Electronic equipment for power installations)
- Certified according to UL508 and CSA C22.2 No. 14-13
HCMR current sensors – the series for railway applications
The current sensors in the HCMR series are specifically designed to comply with the requirements of railway applications. Their functionality is based on the compensation principle (closed-loop).
With their excellent measuring accuracy and short response times, the HCMR current sensors are ideally suited for precise control tasks (e.g. in traction converters). Their robust design and the high degree of protection against overvoltages help them to avoid faulty switching during operation.
Your benefits at a glance:
- Robust design and high degree of protection: to prevent overvoltages and faulty switching during operation
- Internal EMC shielding ensures excellent operational safety
- The enclosure's material and potting mass are self-extinguishing (UL94-V0, EN 45545)
- The right size for your application: only 3 types for a rated current range of 500 to 2000 A
- Easy and safe connections are ensured by screw terminations with Faston connectors
- Can also be used under critical conditions: with a wide temperature range from -40 °C to +85 °C
- Complies with the EN 50155 standard (Electronic equipment used on railway vehicles)
- Certified according to UL508 and CSA C22.2 No. 14-13
HCME current sensors - the series for high currents
With its HCME, HARTING has developed a new series of current sensors that work according to the principle of direct mapping – open loop – and use rectangular cores.
The devices achieve a precision that, in many installation situations, can only be reached with considerably more expensive compensation current transformers. Thanks to the rectangular shape, the new sensors save space and can be easily installed on a power rail.
Your benefits at a glance:
- Measures not only direct and alternating currents, but also mixed signals in frequencies ranging from 0 to 50 kHz
- Unified compact shape across the whole product range for a range measurement range from 0…5500 A
- Compact design and high interference liability allows high design freedom
- Suitable for use under severe conditions: for temperatures ranging from -40 °C to +85 °C
- Compliance with the EN 50178 standard (Electronic equipment for power installations)
