L-com Expands Line of AC, DC Current Sensors

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L-com, an Infinite Electronics brand and a supplier of wired and wireless connectivity products, announced it has expanded its line of AC and DC current sensors.

Suitable for IoT applications, the new AC and DC current sensors protect electrical systems from over-current, short circuits and inefficient and costly energy usage. The devices are designed for use in building and facility management systems, including HVAC, electric fans, electric pumps, electric motors as well as industrial automation and machine building applications.

The new AC current sensors and over-current protectors are offered in various detection ranges from 5 amps to 100 amps. They have analog and relay outputs, and some have an RS485 output. There are versions with an output delay timer. Available choices for DC supplies include 5 volts, 12 volts and 24 volts. They use current transformer (CT) technology. Two of the AC current sensors are available with 10 input channels and monitor all 10 simultaneously.

The new DC current sensors and over-current protectors are offered in various detection ranges from 1 amp to 70 amps. They have analog (0 to 5 volts) and relay outputs and adjustable threshold levels. Some versions are available with a display. Selected models have an external shunt resistor that activates a relay if the current exceeds a preset value.

Both the AC current sensors and the DC current sensors have compact sizes and low power consumption. They feature screw-type terminal blocks for easy field termination, and a removable PCB for a panel or other enclosure. They mount to a standard 35-millimeter DIN rail, a wall or a panel.

“These new AC and DC current sensors not only give our customers insight into how their electrical systems are operating but protect their systems from over-current and short circuits and improve their energy efficiency,” said Tim Houghton, Senior Product Line Manager.