CET Electric Technology
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Figure 2-16 3-Phase 3-Wire Delta, 2PTs, 3CTs
2.4.4 3-Phase 3-Wire (3P3W) Open Delta with 2PTs and 2CTs
Please consult the serial number label to ensure that the rated PT secondary voltage is less than or
equal to the meter’s rated phase voltage input specification.
Set the Wiring Mode to Delta.
Figure 2-17 3-Phase 3-Wire Delta, 2PTs, 2CTs
2.5 Communications Wiring
The PMC-D726M provides one RS485 port and supports the Modbus RTU protocol. Up to 32 devices
can be connected on a RS485 bus. The overall length of the RS485 cable connecting all devices should
not exceed 1200m.
If the master station does not have a RS485 communications port, a RS232/RS485 or USB/RS485