公开(公告)号：EP0078418B1

公开(公告)日：1987-01-14

申请号：EP82109438.0

申请日：1982-10-12

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Toyoda, Mitsuru c/o Patent Division ,  Haginomori, Eiichi c/o Patent Division ,  Ishimatsu, Masanori c/o Patent Division ,  Okutomi, Tsutomu c/o Patent Division

IPC分类号： H01H33/16

CPC分类号： H01C7/18 ,  H01H33/165

公开(公告)号：EP0078418A2

公开(公告)日：1983-05-11

申请号：EP82109438.0

申请日：1982-10-12

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Toyoda, Mitsuru c/o Patent Division ,  Haginomori, Eiichi c/o Patent Division ,  Ishimatsu, Masanori c/o Patent Division ,  Okutomi, Tsutomu c/o Patent Division

IPC分类号： H01H33/16

CPC分类号： H01C7/18 ,  H01H33/165

摘要： A circuit breaker fitted with a parallel resistor (9) and provided with main contacts (1) and resistor contacts (2) arranged electrically in parallel with the main contacts (1) wherein the resistor (9) is formed of a material selected from the group consisting of Cr, CrN, Cr 3 C 2 , CrB, NiO and Mgo. The resistor element generally is made of a material in which the product of the specific heat expressed in Cal/ g °C with the density expressed in g/cm 3 is at least 0.7.