This paper introduces a new type TMF-AMF contact which used in high current interruption process. It has lower bulk resistance (3.28μΩ) of the conductive circuit compared with conventional one by introducing a 4 turn TMF coil and a 6 turn AMF coil. FEM B-field simulations were conducted to evaluate the effect of structure on the B-field strength and distribution. The maximum value of B-field appears around the circumference of the arc column and its value is 45.16mT at the current of 1000A. The main part of B-field is TMF and its strength is much higher than that of AMF.
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