clamp Current Sensor RS485 Current Transformer Split core Current transducer QNDBK1-20 Input AC DC 20A 30A 50A 100A 200A (AC 20A DC 5V)

The QNDBK1-20 split core current transducer is a high-performance RS485 current transformer designed for precise AC and DC current measurement in industrial and commercial applications. Its split core design allows for quick and easy installation around existing wiring without the need to disconnect any cables, making it an ideal solution for retrofit projects. With an impressive accuracy rating of 1% and linearity of 0.5%, this sensor delivers reliable readings across a wide input range of AC 20A to 100A and DC 50A to 500A. The integrated RS485 digital output enables seamless data transmission to monitoring and control systems. Featuring 3KV galvanic isolation, it provides robust protection for low-voltage systems. The compact unit measures 60mm x 61mm with a 20mm aperture and operates reliably across a wide temperature range of -4 to +176 degrees Fahrenheit. Supplied at +24V, this single-phase transducer is built to perform consistently in demanding environments. Terminal connections are clearly labeled for straightforward wiring, with four-pin output supporting both analog and RS485 configurations.

• SPLIT CORE DESIGN: The open-core clamp style allows easy installation around existing wires without disconnecting circuits, making it ideal for retrofit applications.
• RS485 DIGITAL OUTPUT: Integrated RS485 interface enables direct digital data transmission, simplifying integration with industrial monitoring and control systems.
• HIGH ACCURACY: Rated at 1% accuracy with 0.5% linearity, this current transducer reliably measures AC currents from 20A to 100A and DC currents from 50A to 500A.
• WIDE TEMPERATURE RANGE: Operates reliably in temperatures from -4°F to 176°F (-20°C to +80°C), ensuring stable performance in demanding industrial environments.
• GALVANIC ISOLATION: Provides 3KV galvanic isolation (50Hz, 2mA, 1 min) for enhanced safety, with a 20mm aperture and compact dimensions of approximately 2.4 x 2.4 inches.