High Current Sensors
Precision for high performance applications in compact design
Our compact current sensor with high measuring accuracy for a rated current of 1,700 A is the first one with a MOSFET class D output stage. This allows a higher compensation current with less power losses compared to a linear output stage.
The result is the most compact compensation current sensor for DC and AC rated currents above 1,000 A. In this performance class, the sensor is far ahead of other available sensors in the market in terms of price and space requirements. In many applications it is now possible to replace an oversized current sensor with 2000 A nominal current and thus to realize a cheaper and smaller solution.
- High rated current of 1,700 A in very compact design
- Large measuring range up to 3,400 A
- Low offset (0.1 mA) and very low temperature drift (0.1 %)
- Excellent long-term stability
- Superior dynamic properties (rise time and response time < 0.5 μs)
- Low power consumption (31 mA + compensation current)
The new 1,700 A high-current sensor has been developed especially for applications in frequency converters, high-performance drive systems, wind turbines, PV inverters and battery storage systems. Due to its very compact design, it contributes significantly to increasing the power density in the overall application.
The graph shows the measuring range (IP, max) as a function of the primary rated current (IPN).
The new generation allows a measuring range IP, max. over 3,400 A at 20 °C ambient temperature and a rated current IPN of 1700 A. As shown in the graph, this measuring range increases again at lower rated currents. A maximum measurement error of 0.5 % is guaranteed over the entire measurement and temperature range.
Closed-Loop Current Sensors
Closed-loop current sensors with VAC-invented magnetic probe as zero field detector for highest accuracy. VAC current sensors cover three orders of magnitude of rated current between 1.5 A and 1,500 A.
Differential Current Sensors
Closed-loop differential current sensors with VAC-invented magnetic probe for highest accuracy. VAC differential current (DI) sensors cover differential currents from 30 mA up to several Amps.
benvac All Current Sensitive DI Sensor for Electric Vehicle Charging
benvac is a differential current (DI) sensor specifically developed for EV-charging. The sensor can activate an automatic shut-off in case of hazardous electrical faults (DC and AC) according to IEC 62752 or UL2231.