China Suppliers Factory LJ-ZW32-10 Current Transformer for ZW32-10 Outdoor Vacuum Circuit Breakers

A primary and secondary fusion current transformer integrates both primary metering and secondary protection functions into a single compact unit. It simplifies installation and reduces wiring complexity in power distribution systems.

The transformer supports rated primary current values of 200A, 400A, and 600A for standard applications, and zero-sequence current options of 20A, 50A, and 100A for ground fault detection purposes.

This transformer supports multiple accuracy classes including 0.2 and 0.5 for metering purposes, as well as protection classes 10P5 and 10P10, making it suitable for both accurate billing measurement and reliable overcurrent protection.

The rated secondary current is available in two standard values: 5A (or 1A) for the standard primary current range (200A–600A), and 1A for the zero-sequence current configurations (20A, 50A, 100A).

Wiring should follow the provided Wiring Principle Diagram included in this product specification. The diagram clearly illustrates the correct connection of primary terminals and secondary output terminals to ensure safe and accurate operation.

This transformer is widely used in medium and low voltage power distribution systems, switchgear panels, and smart grid applications where both metering accuracy and protection reliability are required in a space-saving integrated design.