Current transformer CTR-30 150/5 CL.0,5 004805507

Current transformer for control and measurement systems

The CTR-30 150/5 CL.0.5 current transformer is a reliable device designed for use in control and measurement systems, network parameter analyzers, and automatic power factor correction (PFC) systems. Its design and parameters ensure precise current measurement, which is crucial for the proper operation of these systems. Thanks to this, both installers and end-users can count on stable and accurate readings.

Construction and application

The CTR-30 through-hole current transformer is characterized by a passage diameter of 30.5 mm and is designed to work with a primary current of 150 A, converting it to a secondary current of 5 A. The rated power of the transformer is 3.75 VA, and the accuracy class of 0.5 guarantees high measurement accuracy. Application in circuits with high primary current allows for safe and effective load monitoring.

Connection terminals with a cover (IP20) and universal connection terminals facilitate installation and ensure safety. The set includes mounting brackets for mounting on a current rail or mounting plate, which increases installation flexibility. The housing made of polycarbonate with 10% glass fiber additive provides mechanical and thermal resistance (fire resistance UL 94V-0).

Key features and benefits

• Precise measurement: Accuracy class 0.5 ensures reliable current readings, which is important for the correct operation of measurement and protection systems.
• Universal mounting: The ability to mount on a current rail or mounting plate using the included brackets makes installation easier in various configurations.
• Safe operation: Connection terminals with IP20 cover protect against accidental contact with live parts.
• Durable construction: The housing made of polycarbonate with glass fiber provides resistance to mechanical damage and environmental conditions.
• Wide range of applications: Ideal for control and measurement systems, network parameter analyzers, and PFC systems – it works well in both industrial and commercial installations.
• Easy connection: Universal connection terminals simplify the process of connecting wires.

Additional information: the operating temperature of the transformer is in the range of -20°C to +45°C, and the system voltage can be up to 720 V at a frequency of 50/60 Hz. The thermal short-circuit current (Ith) is 67 x In, and the dynamic short-circuit current (Idyn) is 2.5 x Ith – these parameters demonstrate the device's resistance to overloads and short circuits in the electrical installation.