Our current transformers of 4-pin with standard pitch can be mounted on the PCB properly. The primary current cable or busbar can be easily put through the big hole with diameter as large as 13mm. Due to the high permeability magnetic core inside, the phase shift error is less than 5′ while the maximum input current is 120A.
Big Hole PCB Mount Current Transformer

Features
- Through hole as large as 13mm
- Accuracy 0.1 class, phase shift error < 5′
- Nickel plated 4 pins for PCB mounting
- DC Immune type is optional, error < 3%
- Conform to IEC 62052, IEC 62053, IEC 62059, GB17201, JB/T10665
Applications
- Single/three phase energy meters
- Electrical measuring instruments
- Electrical protective devices
- Current sensing modules
- PCB assebmly modules
Specifications
Part Number | MC120-25A | DC120-25A |
Description | Big Hole PCB Type | Big Hole PCB Type |
Structure Of Winding | Toroidal | Toroidal |
Phase | Single | Single |
Rated Input Current | 60 (120) A | 60 (120) A |
Rated Input Current | 24 mA | 24 mA |
Max. Current | 120 A | 120 A |
Turns Ratio | 1:2500 | 1:2500 |
Phase Error | <5′ (at 20% In) | <5 (at 20% In) |
Burden (Rb) | 10 Ω | 10 Ω |
Accuracy Class | 0.1 Class | 0.1 Class |
DC Immunity Test | Not Required | <3% |
Core Inside | Nanocrystalline Core | Composite Core |
Encapsulation | Plastic Case | Plastic Case |
Mounting Method | 4 Pins | 4 Pins |
Application | Meters, Instruments | Meters, Instruments |
Accept Customized | Yes | Yes |
Dimensions

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Big Hole PCB Mount Current Transformer