... DC reactor, reactor , electric reactors. 2)DC reactor (Built-in CT). 3)high-tech, good quality, good service. ... dc reactor, reactors , electric reactors.dc reactor s(Built CT).high-tech, good quality, good service.Benefits: ... /50Hz/10mA/10S Free of arcing breakage (tested in factory) Insulation Resistance: 1000VDC,insulation resistance≥100MΩ ... DC reactor, reactor , electric reactors(built-in CT )