spot welding machine:module design,easy for maintainance Specification:Input voltage:220V±20% (Single phase)Input voltage Frequency: 50/60HzRate Input power capacity: 5.76KVANo-Load voltage: 62VOutput current range: 20 - 180ARate output voltage: 27.2VDuty-cycle: 100%No-load loss: 30WEfficiency: 88%Power factor: 0.92Insulation class: HDiameter of Rod: 1.6 - 4.0Protection class: IP21SOverall size: ...