Split Core Type Current Transformers

Leveraging years of technical expertise and innovation, Mibo Electric (CNMIBO) delivers high-performance split core current transformers that combine precision, durability, and adaptability—helping customers achieve safer, more intelligent power distribution and monitoring solutions.

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Core split type transformer

Split core type current transformers are designed for efficient, flexible, and safe current measurement in cable circuit environments. With a simple structure, compact size, and easy installation, they are ideal for applications that require on-site retrofitting without disconnecting existing conductors. A variety of core diameters are available to match different main circuit cable specifications, effectively minimizing false alarms caused by magnetic field interference and ensuring stable and reliable device operation.

Mibo Electric’s split core CTs are manufactured using advanced production processes that guarantee superior accuracy, reliability, and long-term performance. The transformer’s core structure, combined with flame-retardant epoxy resin casting, provides excellent insulation strength and mechanical stability, even under demanding operating conditions.

By using high-permeability nickel steel or nanocrystalline materials, Mibo’s ring type split-core current transformers achieve excellent linearity, high sensitivity, and strong electromagnetic interference resistance, ensuring precise signal transmission in both measurement and protection applications.

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Industry Applications

These split core current transformers are widely used across a broad range of fields, including: Smart power systems and rural power grid upgrades; Electrical fire monitoring and leakage protection systems; Low-current grounding and relay protection systems; Microcomputer-based protection and intelligent monitoring equipment; Environmental and smart energy management applications.

Low-Voltage Open-Type (Split-Core) Current Transformers - Frequently Asked Questions (FAQ)

>Q: Why do I need to set the “Ratio” on an energy meter when using it with an open-type CT? How is it set?

A: The CT's function is to scale down the primary current. The energy meter itself only measures this scaled-down secondary current. Setting the ratio informs the meter of this scaling factor so it can calculate the true primary current and power.

How to Set: If the CT ratio is 300/5A, then the ratio = 300 / 5 = 60. In the energy meter's parameter settings, set the "CT Ratio" or "Current Multiplier" to 60.

Split Core Type Current Transformers

Core split type transformer

CNT-CTHW9

CNT-CTHW8

CNT-CTHW6

CNT-CTHW5

CNT-CTHW4

CNT-CTHW3

CNT-CTHW2

CNT-CTHW1

CNT-CTHW

CNT-BHK

CNT-DP3

CNT-DP2

Industry Applications

Medical industry, electronic technology industry

Urban infrastructure industry

Animal husbandry, breeding industry

Urban transportation, rail transit

Low-Voltage Open-Type (Split-Core) Current Transformers - Frequently Asked Questions (FAQ)

>Q: Why do I need to set the “Ratio” on an energy meter when using it with an open-type CT? How is it set?

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