Overvoltage Protector for Current-Transformer Protection

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Overvoltage Protector for Current-Transformer Protection - CIC

CIC | CHALLENGE INDUSTRIAL CO., LTD., since 1974, is a global supplier of Overvoltage Protector for Current-Transformer Protection. CIC specializes in the manufacture of instrument transformers, distribution transformers, detuned reactors, epoxy insulators, electronic energy meters, etc. Also provided or distributed are a wide range of other electrical or electronic apparatus.

Certified to ISO 9001, CIC ensures superior quality of its goods through such advanced technologies and materials as Swiss-manufactured equipment (for the production of resin insulators), Araldite® epoxy resin, and technology transferred from Messwandler-Bau (MWB) of Germany.

Backed by 44 years of experience, CIC offers custom-made products, OEM/ODM services, and technical support tailored to the needs of its discerning clientele.

Overvoltage Protector for Current-Transformer Protection


When the power system is in operation, the secondary side of the current transformer is designed to prevent it from allowing an open circuit.

Open circuits can be the result of lightning strikes, harmonic oscillation over current, capacity charge current or other events which may result in extreme high voltage causing damage to the current transformer and secondary equipment, or even posing a threat to personal safety.

Our current transformer secondary over voltage protector CCTP-03 is there to prevent accidents that are the result of abnormal secondary high voltage.

Current Transformer (CT) Overvoltage Protector

Product Features

  • Our CCTP-03 series is safety tested and assured.
  • With a reset key on the operating panel, the circuit can be returned to normal and the voltage protector goes back into standard operating status.
  • It is programmable with a digital display setting for voltage and time.
  • It comes with a 3 phase current detectable LED signal and a visible power on light.
  • Can be supplied for over current winding, measurement winding, differential winding, bus protection winding and alternate winding of the secondary current transformer.


Q'ty of current transformer3
Operating Voltage0~150VAC
Input Signal5A
Reaction Time0 ~ 4 Sec.
Capacity of Relay Contact1C, 0 ~ 260V, 10A
Operating EnvironmentOperating Temperature: -20℃ ~ 70℃
Relative Humidity: ≦96% RH
Altitude: ≦2500M
Operating Voltage85 ~ 265VAC
Power Consumption≦5VA
ReliabilityPower Frequency Withstand Voltge: ≦2500V
Anti-interferenceSurge 4KV