... 4.High quailty manufactor 2500-3150A fixed contact 109*1071.2500-3150A high quality electrical fixed contacts2.Used for High voltage vacuum ... 9001:2000 5.High quality manufactor, punctual delivery.1.name: fixed contact.2.rated current: 400A, 630A, 1000A, 1250A, 2000A, ... 3150A, 4000A.3.contact material: copper.4.surface treatment: thick silver-plated, discoloring proof ...