Current transformer CTR-30 750/5 CL.0,5 004805514

Current Transformers CTR – Precise Measurement and Reliability

Current transformer CTR-30 750/5 CL.0.5 is a key element of control and measurement systems, used in network parameter analyzers and automatic power factor correction (PFC) systems. Its solid construction and measurement accuracy make it an ideal choice for both professional installers and end-users where reliability is a priority.

Construction and application

Through-type transformer with a passage diameter of 30.5 mm, designed to work with circuits with a nominal primary current of 750 A. The 750/5 ratio means that the primary current of 750A is converted into a secondary current of 5A, which enables safe and accurate measurement even under high loads. The rated apparent power of 15 VA ensures stable operation of the device in various conditions.

Advantages and benefits

• Versatility: Ideal for control and measurement systems, network analyzers and PFC systems.
• Safety: Accuracy class 0.5 guarantees precise measurements, which translates into the safety of installation operation.
• Universal mounting: Possibility of mounting directly on the busbar or mounting plate thanks to the included brackets. The set also includes brackets for the wire and busbars.
• Durability: The housing made of polycarbonate with fiberglass (flame retardancy UL 94V-0) ensures durability and resistance to external factors.
• Comfort of use: Connection terminals with a cover (IP20) increase safety and facilitate connection of wires.
• Wide operating temperature range: The transformer retains its properties in the temperature range from -20°C to +45°C.
• High short-circuit resistance: Thermal short-circuit current (Ith) is 74 x In, and dynamic short-circuit current (Idyn) is 2.5 x Ith – this ensures protection of the device in the event of a failure.

Technical parameters in practice

The CTR-30 750/5 CL.0.5 transformer has been designed with demanding industrial and commercial applications in mind. Its insulation class E (120°C max) and maximum system voltage of 720V guarantee safe operation even in difficult conditions. Thanks to the operating frequency of 50/60 Hz, it is compatible with most standard electrical networks. The weight of the device is only 0.365 kg, which facilitates its assembly and operation.