Miniature current transformer with openable core 600-5A class 1 TOM-600-5

Miniature current transformer – precise measurement without power interruption

This miniature current transformer with an openable core is an ideal solution for safe and precise current measurement in existing installations. The openable core design allows mounting on energized conductors, eliminating the need to interrupt power and minimizing downtime. The transformer converts a high primary current (up to 600A) into a safe and standard secondary signal (5A), suitable for cooperation with various measuring devices.

Key features and application

The TOM-600-5 transformer finds application in both industrial and commercial installations where accurate current measurement is required without the need to interfere with the existing infrastructure. It is particularly useful during installation upgrades, energy consumption monitoring, and connecting energy meters and ammeters. Thanks to its compact size, the transformer is easy to mount even in tight switchboards.

• Openable core: Allows mounting on energized conductors without the need to disconnect them. This saves time and costs associated with installation downtime.
• 600/5A ratio: Provides proportional reduction of the primary current to a value safe for measuring devices.
• Accuracy class 1: Guarantees reliable and precise measurement results, which is crucial for the proper operation of monitoring and control systems.
• Compact dimensions: Facilitate mounting in limited space, e.g. in electrical switchboards.
• Safety: Provides galvanic isolation between the primary and secondary circuit, protecting personnel and measuring devices from high voltages.

Technical specifications and parameters

The TOM-600-5 transformer is characterized by a solid construction and high quality workmanship. It has a rated apparent power of 2.5 VA and meets the IEC 60044-1 standard, confirming its compliance with international safety and quality standards. The secondary circuit connection terminals are screw-type, ensuring a secure and durable electrical connection.

The rated primary current is 600 A, and the secondary current is 5 A. The rated secondary power is 2.5 VA, and the accuracy class is 1. The diameter of the transformer passage is 32 mm, and the operating frequency is 50-60 Hz. The maximum working voltage is 0.66 kV AC, and the secondary circuit connection is realized by a screw connection.

Additional information:

• Operating temperature: -15°C to +45°C
• Protection class: IP20 (protection against finger contact)
• Mounting: Rail or cable

Remember the manufacturer's recommendations regarding the connection of a secondary wire with a minimum diameter of 2.5 mm² and grounding of the S2 terminal to ensure safe use. Disconnecting the secondary circuit during operation of the transformer is prohibited!