
High Current DC Immune Core
Features
- ID=40mm, OD=50mm, H=20mm, weight 95g
- Nanocrystalline 1K107 & amorphous 1K101 inside
- AL value ≥25μH@1kHz/0.3V/1Ts
- Suit for 400A DC immune current transformer
Specifications
Part Number | CP40-50-20A |
Description | High Current DC Immune Core |
Structure | Toroidal Inner & Outer Dual Core |
Function | Current Sensing |
Material A | Fe-based Nanocrystalline 1k107 Ribbon 20mm |
Material B | Fe-based Amorphous 1K101 Ribbon 20mm |
Finish Type | PBT Plastic Box |
Color | White |
Weight | Approx. 95 g |
AL Value | ≥ 25 μH |
Test Conditions | 1 kHz / 0.3 V @1 Ts |
Application | 400A DC Immune Current Transformer |
Dimensions

Dimensions (mm) | ID | OD | H |
Nominal Size | 40±0.5 | 50±0.5 | 20±0.2 |
Finish Size | 37±0.1 | 53.3±0.2 | 23.1±0.3 |
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High Current DC Immune Core