CuCr50 contact (Infiltrated)  This contact material is used in vacuum arc-extinguishing chamber.  It has been tested for several times by Siemens Company in Germany and all the properties have met the technical requirements of the company.  It has passed the type tests of the vacuum circuit breakers of 12kV/12.5kA, 20kA, 31.5kA, 40kA, 50kA or 100kA and 40.5kV/20kA, 25kA or 31.5kA in China.  It enjoys very good reputation in the industry of China and is the prior choice of many vacuum arc-extinguishing chamber manufacturers.
CuCr45 contact (VAM)  This contact material is applied to vacuum arc-extinguishing chambers.  It has the microstructure characteristic of fine and homogeneous distribution of Cr particles in the Cu base.  Its properties are similar to that of CuCr45 (VAM) manufactured by Siemens of Germany.  It has excellent comprehensive electrical property and has passed the type tests of low-voltage vacuum circuit breakers of 380 ~ 1140V/65kA, 80kA.
CuCr40 contact (VAM)  This contact material is applied to vacuum arc-extinguishing chambers.  It has the microstructure characteristic of fine and homogeneous distribution of Cr particles in the Cu base, and thus has excellent comprehensive electrical property.   It has passed the type tests of highly-reliable miniature vacuum circuit breakers of 40.5kV/31.5kA.
CuCr25 contact (VAM)  This contact material is applied to vacuum arc-extinguishing chambers.  It has the microstructure characteristic of fine and homogeneous distribution of Cr particles in the Cu base, and thus has excellent comprehensive electrical property.   It has passed the type tests of highly reliable miniature vacuum circuit breakers of 12kV/25kA, 31.5kA or 40kA.
CuCr25 contact (Sintered)  This contact material is applied to vacuum arc-extinguishing chambers of 12 ~ 40.5kV.

Properties