KW9M Eco-POWER METER53.2 Wiring DiagramsPlease connect a breaker or a fuse to the power supply and voltage input part for safety reasons and toprotect the device.･Recommended breaker: 3 to 15A･Recommended fuse : Time-lag fuse rated current 2AGrounding the secondary side of VT (Voltage transformer) and CT (Current transformer) is notnecessary with low-voltage circuit.*When using several CTs, set each CT approximately 1m apart. If the two CTs are set too close eachother, it may not measure accurately due to magnetic field interference.◆When measuring a load with rated input voltageSingle-phase two-wire system*One CT is needed to measure single-phase two-wire system.*2 CTs are needed to measure 2-circuit and 3 CTs are needed to measure 3-circuit.*To measure 2-circuit, wire 3 and 4. To measure 3-circuit, wire 3 and 4 and 5.Single-phase three-wire/Three-phase three-wire*2 CTs are needed to measure single-phase three-wire system, three-phase three-wire system.
