Low voltage , current transformers CB series

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Indoor or Outdoor

Primary current from 50 to 60000 A

Inner diameter from 40mm

 to 500 mm

Insulation 0.75/4 kV

Measurement and protection


More details

Technical data

Highest Voltage for Equipment:750
Power frequency withstand voltage:4000
Primary current Ipn:50-60000
Secondary current Isn:5or1
Rated output:1-500
Accuracy class:0.5-1-3-5P-10P-ClX
Security factor:5-30
Continuous Thermal current:1.2to 1.5Ipn and 2Ipn
Accuracy limit factor:5-10-15-20-30
Short-time thermal current Ith:from 25 to 1000Ipn
Dynamic current Idyn:2.5Ith
Insulation class:E
Ambient temperature: -5C° to + 40 C° -25C° to + 40 C° -40C° to + 40 C°
Standards:IEC60044-1, IEC61869-2, IEC60044-2

Other characteristics on request

Highest Voltage for Equipment*:Up to 2400
Power frequency withstand voltage*:Up to 11 Kv
Secondary current Isn*:0.005to 10
Continuous thermal current*:from 1.2to 1.5Ipn and 2Ipn
Ambient temperature*: -40C° to + 70 C°
Standards*:ANSI C57.13 – CAN3 C13 – AS 1675
Multiple cores:Up to 4 cores
Multi ratio:By secondary tapping
Frequency*:from 1 to 10000


Indoor or outdoor:Indoor - Outdoor
googletranslate with resin or without resin:with resin