| abstract |
[PROBLEMS] To effectively reduce the wear of a copper surface, a copper alloy surface, a noble metal surface (a silver plating surface, a gold plating surface, etc.) without causing chattering (voltage drop) even when a contact of a minute current is used in a low temperature range. To provide a grease composition for electrical contacts. A grease composition for an electrical contact comprising a thickener, a base oil, and an additive, comprising a synthetic hydrocarbon oil having a kinematic viscosity at 40 ° C. of 9 to 40 mm 2 / s as the base oil. As an electrical contact grease composition containing at least one selected from the group consisting of an organic zinc compound and a thiadiazole compound, preferably a titanate coupling agent and / or an aluminum coupling agent. |