Split-core current transformer RCT-RJ11 (0–500 A) for CTH01

RCT-500 is one of the RCT-RJ11 transformer variants designed for the CTH01 hub.

The 500 A version is designed for monitoring circuits where smaller 100 A or 300 A transformers do not provide sufficient range.

The opening transformer core allows an existing conductor to be enclosed without routing it through a closed transformer opening.

The solution significantly simplifies retrofit of existing distribution boards and expansion of the energy monitoring system.

The transformer is installed directly on the monitored conductor according to the current flow direction required by the measurement system.

Each RCT-500 transformer is connected to one CTH01 current channel.

This means that the number of required transformers depends on the number of conductors or phases to be monitored.

For example, for conventional three-phase measurement, a separate transformer is used for each monitored phase.

RCT-500 is an accessory designed for the Milesight CTH01 Smart Power Monitor Hub.

CTH01 has 12 RJ11 current inputs and allows monitoring of up to 12 single-phase circuits or up to 4 three-phase circuits.

Individual channels can work with transformers of different ranges, including 100 A, 300 A, 500 A and 1000 A.

The transformer is equipped with a cable terminated with an RJ11 connector.

The plug connects directly to the selected CTH01 measurement channel, reducing the number of manually made connections during installation.

RCT-500 measures the current flowing through the monitored conductor, while electrical parameter calculations are performed by CTH01.

Combined with voltage measurement, CTH01 can analyze RMS current, active, reactive and apparent power, energy, power factor and power quality parameters, among others.

The RCT-500 variant has a conductor opening with a diameter of 36.6 mm.

Before selecting a transformer, both the maximum circuit current and the physical diameter of the monitored conductor should be verified.