Microprocessor phase sequence and phase failure sensor CKF-337-TRMS

Three-phase motor protection – reliable CKF-337-TRMS phase sequence and phase loss sensor

This microprocessor-based phase sequence and phase loss sensor is key to the safe and reliable operation of electric motors powered by a three-phase network. Designed to monitor the voltage status in the network, it effectively protects against the effects of single or multiple phase loss, voltage asymmetry, and incorrect phase sequence. This minimizes the risk of damage and downtime, ensuring production continuity and reducing repair costs.

Versatile application and easy installation

The CKF-337-TRMS sensor is distinguished by the lack of the need to use a neutral wire, which simplifies installation and reduces the number of elements in the circuit. Mounting on a 35 mm rail is quick and intuitive, and screw connections ensure secure and durable electrical connections. Compact dimensions (52.5 mm width, 65 mm depth and 90 mm height) allow installation even in limited space within the switchgear cabinet.

Functions and benefits for the installer and user

• Comprehensive protection: Monitors phase sequence, detects phase loss and controls voltage asymmetry – all in one device.
• Adjustable parameters: The ability to adjust the time delay before shutdown (minimum 4 seconds) allows you to adapt the sensor's operation to specific application needs.
• LED indication: Built-in LEDs indicate the power and operating status of the device, facilitating diagnostics and maintenance.
• Relay output element: Provides reliable switching of a load with a maximum current of 10A.
• Wide voltage range: Designed to operate in networks with a voltage of 190-270 V, making it compatible with most three-phase installations.
• Safe operation: Protects motors from damage caused by improper operation of the power supply network, extending their service life and reducing operating costs.
• Simple diagnostics: Quick detection of power supply network problems allows for a swift response and minimization of downtime.

This sensor is not only protection – it is an investment in the stability of the electrical installation and the peace of mind of the end user. Thanks to its precise operation and reliability, the CKF-337-TRMS is an ideal solution for both professional installers and demanding end customers.