A relay comprising a framework portion, characterized in that: a hollow portion is formed inside the framework and a plurality of windows are formed on the periphery of the framework, the windows communicate the outside of the framework and the hollow portion; two sets of contacts that are contactable correspondingly with each other are accommodated inside the hollow portion; an arc gap is formed between the contacts that are contactable with each other, the windows are aligned with the arc gap from outside, the two sets of contacts include the movable contacts and stationary contacts, respectively, the stationary contacts is fixed to an upper portion of the hollow portion and the movable contacts is located correspondingly inside the hollow portion, a main body of the framework comprises a plurality of posts, an upper mounting portion and a lower connection portion, each of the posts is arranged with distances on a periphery of the hollow portion, the windows are formed between adjacent posts; the upper mounting portion is connected with each of the posts at an upper portion; the lower connection portion is connected with each of the posts at a lower portion; and the lower connection portion is fixedly connected with a pushing mechanism, wherein the framework portion further comprises at least one magnetic steel and at least one arc resistance piece; the magnetic steel is mounted to the windows, the magnetic steel is located on the periphery of the arc gaps, and the magnetic steel blow an arc created at the arc gaps; the arc resistance piece is mounted to the windows, and the arc resistance piece is located in the direction of the arc blowing direction of the magnetic steel, the magnetic steel blow the arc towards the outside of the contactor framework with the function of the magnetic field of the magnetic steel wherein the arc resistance pieces are provided in pairs, the relay being characterized in that each arc resistance piece is made of a ceramic piece, and in that the arc resistance pieces are provided symmetrically with respect to a center aligned to a center of the arc gap. a hollow portion is formed inside the framework and a plurality of windows are formed on the periphery of the framework, the windows communicate the outside of the framework and the hollow portion; two sets of contacts that are contactable correspondingly with each other are accommodated inside the hollow portion; an arc gap is formed between the contacts that are contactable with each other, the windows are aligned with the arc gap from outside, the two sets of contacts include the movable contacts and stationary contacts, respectively, the stationary contacts is fixed to an upper portion of the hollow portion and the movable contacts is located correspondingly inside the hollow portion, a main body of the framework comprises a plurality of posts, an upper mounting portion and a lower connection portion, each of the posts is arranged with distances on a periphery of the hollow portion, the windows are formed between adjacent posts; the upper mounting portion is connected with each of the posts at an upper portion; the lower connection portion is connected with each of the posts at a lower portion; and the lower connection portion is fixedly connected with a pushing mechanism, wherein the framework portion further comprises at least one magnetic steel and at least one arc resistance piece; the magnetic steel is mounted to the windows, the magnetic steel is located on the periphery of the arc gaps, and the magnetic steel blow an arc created at the arc gaps; the arc resistance piece is mounted to the windows, and the arc resistance piece is located in the direction of the arc blowing direction of the magnetic steel, the magnetic steel blow the arc towards the outside of the contactor framework with the function of the magnetic field of the magnetic steel wherein the arc resistance pieces are provided in pairs, the relay being characterized in that each arc resistance piece is made of a ceramic piece, and in that the arc resistance pieces are provided symmetrically with respect to a center aligned to a center of the arc gap.