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 13726661550

Busbar-Integrated Miniature Current Transformer

The Busbar-Integrated Miniature Current Transformer is designed for busway and switchgear applications, featuring a compact structure that mounts directly into the busbar without requiring external space. With a high‑precision silicon steel/nanocrystalline composite core, it delivers accurate current monitoring and reliable electrical isolation, suitable for power distribution, energy metering, and industrial control systems.

Main Advantages

  • Integrated Design & Space Efficiency
    Adopts a direct busbar-through structure that eliminates external mounting brackets, reducing volume to one-third of conventional transformers. Ideal for space-sensitive installations in compact distribution cabinets and smart meter enclosures.

  • Non-Contact Measurement & Enhanced Safety
    Utilizes a fully closed magnetic core that surrounds the busbar, enabling isolated current sampling without electrical contact. Eliminates arc risk and is especially suited for live monitoring of densely packed low-voltage busway systems.

  • Wide Dynamic Range & High Precision
    Covers a broad current range from 1 A to 5000 A, combining silicon steel/nanocrystalline composite cores to achieve linearity error within ≤±0.2% (0.2S class accuracy) across 20%–120% of rated current, meeting both measurement and protection standards.

  • Temperature Stability & EMI Immunity
    Fully encapsulated with poured epoxy resin, maintaining a ratio error drift below 0.02%/℃ over –40 ℃ to +85 ℃. Provides high immunity to high-frequency electromagnetic interference (EMC Level III compliant).


Specification and model:

Model ZH-JCT2024Z
Rated input/output 2mA/2mA
Nonlinearity <0.1%
Linear range 0-10A(1000Ω)


Specification and model:
Model ZH-JCT1024Z
Rated input/output 1mA/2mA
Nonlinearity <0.1%
Linear range 0-5A(1000Ω)


Specification and model:
Model ZH-JCT10554Z
Rated input/output 0.5mA/5mA
Nonlinearity <0.1%
Linear range 0-2A(200Ω)




Specification and model:
Model ZH-JCT5254GZ
Rated input/output 0.5mA/2.5mA
Nonlinearity <0.1%
Linear range 0-20A



Busbar-Integrated Miniature Current Transformer
The Busbar-Integrated Miniature Current Transformer is designed for busway and switchgear applications, featuring a compact structure that mounts directly into the busbar without requiring external space. With a high‑precision silicon steel/nanocrystalline composite core, it delivers accurate current monitoring and reliable electrical isolation, suitable for power distribution, energy metering, and industrial control systems.
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