Current transformer - three-phase, rated voltage 720V AC, 150/5A TP-150-5

Current transformer for precise measurement

This three-phase current transformer, with a ratio of 150/5A, is a reliable tool for measuring current in electrical installations. Designed for both industrial and commercial applications, it enables safe and accurate load monitoring. Its closed-core design ensures stability and precision of measurements.

Construction and application

The current transformer serves to convert large primary current values into smaller, safe values for measuring devices. This makes it possible to effectively monitor energy consumption, installation load and protect against overloads. This model is particularly useful in situations where direct connection of measuring devices to a high-current circuit is impossible or dangerous. Designed for mounting on a DIN rail, panel or conductor, it offers flexibility in installation.

Key features and benefits

• High accuracy: Accuracy class 1 ensures reliable measurement results, which is crucial in control and measurement applications.
• Safety: Provides galvanic isolation between the high-current circuit and measuring devices, minimizing the risk of electric shock and equipment damage.
• Versatility: Suitable for use in various types of electrical installations, both new and modernized.
• Solid construction: Made of high-quality materials guarantees durability and reliable operation even in harsh working conditions (operating temperature -5°C to 40°C).
• Easy installation: Secondary circuit connection via screw connection (4 mm²) facilitates quick and safe installation.
• Compliance with standards: Meets the requirements of IEC 60044-1 standard, confirming its quality and safety of use.
• FS 5 burden rating: Allows for short-term overloads without damaging the device.
• Insulation withstand voltage 3 kV/1 min: Provides additional protection against failures caused by overvoltage.

Additional information: the rated secondary apparent power is 2.5 VA, and the mounting hole dimensions are 15 mm x 21 mm. Thermal short-circuit current (lth) is 60 x In, and dynamic short-circuit current (Idyn) is 2.55 x lth. Tightening torque of connections is 0.5 Nm. Protection degree IP20 provides protection against contact with fingers and solid objects larger than 12mm.