Closed-loop current sensor 4646-X9xx series

PCBACDC

Applications of the Current Sensors Control devices with all-current sensitive differential current sensors are used primarily in transformerless solar or traction inverters. Also in EV charging infrastructure and charging devices in general, DI sensors can be used. An important safety function of these devices is the monitoring of the leakage currents against earth of the entire system. This leakage current contains DC and AC components. Therefore an AC/DC-sensitive monitoring unit is necessary. Their heart is the VAC differential current sensor, whose output voltage is evaluated by the control system of the solar inverter. Characterics of the Sensors: Closed loop sensors with magnetic probe for highest accuracy and reliability Differential current range typically 30 mA, up to 1000 mA Full load current to 85 A Single +5 V voltage supply Voltage output for direct connection at A/D-converters Automatic demagnetization of the sensor core for offset decrease Self-monitoring and test functions Measuring accuracy 1.5% Smallest temperature drift, highest long-term stability Magnetic shielding against external fields Frequency range DC to 10 kHz Variants with pass-through opening or with integrated primary conductors variant with or without test winding cost effective design