Microprocessor phase loss and asymmetry sensor CZF-BT-TRMS

Phase Control and Installation Safety

The microprocessor-controlled phase failure and asymmetry sensor CZF-BT-TRMS is a reliable device that monitors the power supply status in a single-phase network. Its main task is to protect connected devices from the effects of phase failure or excessive asymmetry – problems that can lead to serious failures and downtime. This device finds application in both domestic and industrial installations where power supply stability is crucial.

Functionality and application

CZF-BT-TRMS is designed for mounting on a DIN rail, which simplifies its integration with existing electrical infrastructure. It has an adjustable asymmetry threshold and operating time, allowing for precise adaptation to the specific requirements of a given installation. Thanks to the phase failure detection function, the sensor reacts quickly to irregularities in the power supply, minimizing the risk of damage to connected receivers. It uses the True RMS method to measure voltage, which ensures accuracy even in the case of voltages with a non-standard waveform.

Advantages for installers and users

• Versatility: Monitors both phase failure and its asymmetry, providing comprehensive protection.
• Parameter adjustment: Possibility to adjust the asymmetry threshold and operating time to specific application needs.
• Easy installation: DIN rail mounting simplifies installation and integration with existing systems.
• No external power supply required: The device draws power directly from the monitored network, eliminating the need for an additional power source.
• Screw connection: Ensures a secure and durable connection of electrical wires.
• Wide voltage measurement range: Operates in the range of 140…270 V, making it compatible with various power systems.
• High reliability: Microprocessor design guarantees stable and precise operation of the device.
• Compact dimensions: Depth of 65 mm and height of 90 mm allow for mounting in limited space.

Technical characteristics

The device has one normally closed contact (1Z) and one changeover contact (1P), which allows its integration with various control and signaling systems. The minimum adjustable time delay for power failure is 0.5 seconds, and the maximum is 15 seconds – providing flexibility in configuring the reaction to disturbances. The lack of undervoltage or overvoltage control function focuses the sensor's operation on key safety aspects: phase failure and its asymmetry.