Current transformer, single-phase, with Modbus RTU output MAX-MB-1I-1-5A

Current Intensity Measurement Transducer – Precision and Communication in Your Installation

This single-phase current transducer with MODBUS RTU output is a reliable tool for monitoring and analyzing energy consumption. The device, manufactured by F&F, combines measurement accuracy with the ability to integrate with automation systems and remote data reading. The transducer is designed for direct mounting and cooperation with circuits with a current of up to 15A (AC) or 20A (DC).

Functionality and application

The MB-1I-1-15A transducer is used to measure alternating or direct current intensity. It uses the MODBUS RTU communication protocol, which enables easy integration with SCADA, BMS and other devices supporting this standard. This allows for remote data reading, real-time monitoring of energy parameters and energy consumption analysis. This solution finds application both in industrial installations and in commercial and residential buildings where precise power consumption control is required.

Key features and benefits

• Measurement accuracy: Measurement error at the level of 0.5% provides reliable data, essential for optimizing energy consumption and detecting irregularities in the installation.
• MODBUS RTU communication: Enables easy integration with existing automation systems and remote data reading.
• Wide measurement range: Support for AC currents up to 15A and DC up to 20A allows the transducer to be used in various types of installations.
• DIN rail mounting: Standard mounting on a 35mm rail simplifies installation and device replacement. Compact dimensions (1 module – 18mm wide) allow for saving space in the switchgear cabinet.
• Safety: Dielectric strength WE-WY at the level of 2.1 kV provides protection against overvoltage.
• Configuration: The ability to set the data transmission speed (1200÷115200 bit/s), data bits, stop bits and parity allows you to adapt the transducer to the specific requirements of the communication system.
• Supply voltage: A wide supply voltage range (9÷30 V DC) increases installation flexibility.

Technical parameters in practice

The transducer operates at a frequency of 50 Hz, making it compatible with most standard power grids. The reading register accuracy of 0.1 A allows for accurate monitoring of even small changes in load. The sampling frequency of 10 Hz ensures a quick response to dynamic current changes. The IP20 protection class guarantees safe use in normal operating conditions. Screw terminals with a cross-section of 2.5 mm² allow for a solid connection of the power supply cables.