... Customization Service available. 3.Pretty outward design DT862-4 three phase energy meter1. sub-closed iron core2. with alloy ... , the magnetice circuit is stable and reliable.3. three kinds of bearing: dual jewel, magnetic thrust and ... , ABS plastic, glass and aluminum. DT862-4 three phase energy meterDT862-4 three phase energy meterDT862-4 three phase energy meterDT862-4 three phase energy meter