Zhejiang Vekon Technology Co., Ltd.  

Product Name: Zero Sequence Current Transformer Core for RCCB Model NO.: VNL series Certification: CE Structure of Operating: Electric Grounding: Un Grounded Grounding Mode: Not Grounding Operation: Electric Type: Low-voltage Output Voltage Ratio: 0.9 or Above Trademark: VEKON Transport Package: Cardboard Specification: AC/A Origin: China HS Code: 8504909090 Product Description Nanocrystalline core is the best material for zero sequence CT in a RCCB(residual current circuit breaker) core. RCCB is designed to disconnect the circuit if there is a leakage current. It is critically important in protecting circuit safety in both residential and industrial use. It can be classified into electronic type, electromagnetic type(DC pulsating); A type, AC type, B type ,etc. Zero sequence CT core is a critical component inside.Characteristics: a. Very high permeability and output voltage b. High Bs, low core loss c. Good thermal stability, high Curie temperature d. Competitive prices Applications: a. Electronic RCCB b. Electromagnetic RCCB( type A, type AC, type B).Comparison of magnetic characteristics between typical nanocrystalline core and perm alloy core:Main ParametersNanocrystallinePerm alloyBs1.20.7Initial permeability(Gs/Oe)>80000>10000Max permeability (Gs/Oe)>450000>200000Remanence Br(T)0.10.4Coercivity(A/m)<1.6>0.4Density(g/cm3)7.258.8Core loss(W/kg)P0.2/20K<10P0.2/20K=13Specification and magnetic parametersPart No.Core dimensions(mm)od×id×hHousing dimensions(mm)OD×ID×HInput CurrentI(mA)N1:N2Output VoltageUout(mV)VNL-112.1×9.1×3.813.4×7.8×5.024.71:10.058-0.088VNL-212.8×9.5×3.214.6×7.0×4.824.61:10.05-0.08VNL-312.8×9.6×2.6514.2×7.7×522.51:10.055-0.095VNL-412.9×8.9×16.714.9×6.7×19.3301:11.0-1.7VNL-517×10×2019.2×7.9×22.5451:1≥1.9VNL-618.5×11.5×16.722.0×10.0×19.333.31:11.19-1.78VNL-719×13×1021.5×10.8×12.253.51:10.59-0.87VNL-819×14×3.221.5×12.3×5.422.51:10.07-0.12VNL-918.6×15×4.520.6×13.3×6.624.61:10.06-0.09VNL-1022×14×16.724.2×11.8×19.3701:1≥1.9Remarks: customized core available upon request.Typical Curve: