Customized Miniature Current Transformer

We provide many options for customers to specifiy, from design to large-scale production stage, to make suitable miniature current transformers for their special applications. We choose different kinds of cores to achieve required parameters, such as amplitude error and phase shift. We provide different kinds encapsualtions, such as plastic case, metal shielding, insulation tape wrapped current transformer. Removable or built-in busbar make the current transformer can be fixed easily by screwing. According to the secondary connecting, we can make lead wire type with tinned end or connector end, or PCB type (4-pin or 2-pin), which can be easliy mounted on the PCB.


  • Current rating 100A, double insulation
  • Accuracy 0.1 class with turns ratio 1:1000
  • Busbar built-in structure with nickel plating
  • Primary connect distance 20.9mm, OD Φ27mm


Part NumberMSB100-10B
DescriptionCustomized Miniature Current Transformer
Structure Of WindingToroidal
Input / Output10(100)A/10mA
Max. Current100 A
Turns Ratio1:1000
Phase Shift Error5′ (20% Rated Current)
Burden (Rb)12.5 Ω
Accuracy Class0.1 Class
Insulation (Winding to Body)>3 kV
DC Immunity TestNo Required
Core InsideNanocrystalline
EncapsulationPlastic Case & Epoxy Resin Filled
Busbar TypeBuilt-in Busbar
Mounting MethodBusbar with Grooves
ApplicationMeters, Instruments
Accept CustomizedYes

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Customized Miniature Current Transformer
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