Current transformer 400/5A Ø30, class 0.5 TI-400-5

Current transformer – precise measurement, reliable protection

Current transformer 400/5A is a key element in measurement and protection systems. The device is used to safely and accurately convert large primary currents into smaller, secondary values that can be measured by standard measuring instruments and protective relays. The closed-core design ensures high measurement accuracy and stability, and the accuracy class 0.5 guarantees minimal reading errors.

Construction and application

Current transformer TI-400-5 is designed for mounting on rails or distribution boards. Its solid construction and compact dimensions (75 mm x 99 mm x 40 mm) make installation easy even in limited spaces. The device finds wide application in:

• Electrical power distribution boards: monitoring load and protection against overloads.
• Measurement systems: precise measurements of electricity consumption.
• Industrial applications: control of technological processes requiring monitoring of large currents.
• Protection of electrical installations: quick detection of short circuits and failures.

Key features and benefits

• High accuracy: accuracy class 0.5 ensures reliable measurement results, which is crucial for the proper operation of protection and control systems.
• Wide range of applications: the 400/5A current transformer allows for effective monitoring of circuits with high current intensity.
• Safety of use: insulation withstand voltage at the level of 3 kV/1 min protects against dangerous overvoltages.
• Durable construction: solid construction with high-quality materials guarantees long-lasting and trouble-free operation of the device.
• Easy installation: compact dimensions and the possibility of mounting on rails or boards facilitate installation in various configurations.
• Compliance with standards: meets the requirements of IEC 60044-1 standard, which confirms its quality and safety.
• FS 5 surge factor: allows for short-term loading of the transformer without damage, which is important when starting motors or other devices with high starting current.
• Screw connection: provides a secure and durable connection of secondary conductors (4 mm² screw terminals).

Remember the manufacturer's recommendations regarding the connection of the secondary wire (minimum diameter 2.5 mm²) and grounding of the S2 terminal to ensure proper operation and safety of the system.