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CTT 1 Low Voltage Current Instrument Transformer

CTT 1 Low Voltage Current Instrument Transformer

CTT 1

The CTT1 current instrument transformer is used for measurement and protection purposes in indoor LV power distribution systems with the highest system voltage of 0.72 kV. Their rated secondary currents are 5A or 1A.

The ultimate operating current of the CTT 1 transformers attains 120 % IN , however, another values can also be guaranteed providing that such has been agreed between the manufacturer and the customer. The required accuracy class for these transformers is met within 25% to 100% of rated burden.

The transformers are designed as slip-over devices.