Current transformer CT 400/5 A, diameter 26 / 40.5×12.5 412117

Current Transformer for Precise Measurements

This current transformer, with a rated primary current of 400 A and secondary current of 5 A, is indispensable in measurement and protection systems. Designed to work seamlessly with metering devices and protective relays, it enables safe and accurate monitoring of load in electrical installations. Its robust construction ensures reliability and long-term operation.

Ideal for use in commercial buildings, industrial facilities, and energy consumption monitoring systems, this transformer features a high accuracy class of 0.5, guaranteeing precise current readings essential for optimizing energy usage and efficient system management. The use of a current transformer allows measurement of high currents without the need to directly interrupt the circuit.

Construction and Specifications:

• Bore diameter: 26 mm – allows installation on conductors of corresponding diameter.
• Hole dimensions: 26 x 26 mm – precisely matched to standard installations.
• Secondary circuit connection: Screw terminal – ensures secure and safe connection to measuring devices.
• FS (Full Scale) overcurrent factor: 5 – enables short-term overloads without damage to the transformer, ideal for motor starting or other high-inrush-load applications.
• Rated secondary apparent power: 6 VA – ensures compatibility with most standard metering equipment.
• Touch protection: Yes – enhances safety by minimizing the risk of electric shock during handling and maintenance.
• Calibration: Yes – confirms compliance with applicable metrological standards and regulations, critical for billing applications.

The transformer has an accuracy class of 0.5, ensuring highly precise measurements. Power consumption is only 6 VA, minimizing energy losses. This model is designed for use as a protective current transformer. Thanks to its compact dimensions (12.5 mm height), it can be easily installed even in confined spaces.