3.
AG-300 Plus Gateway User Manual
PM-300 PT/CT wiring method
Attention and warnings
(1) It is prohibited to carry out wiring work during power is on line.
(2) After the input power cut OFF, do not touch the circuit or change the wiring before the status P
LED of PM-300 went off.
(3) The Ia/lb/lc & la*/lb*/lc* input terminals for current measurement and Ua/Ub/Uc/Un
input terminals for voltage measurement MUST NOT be inter- connected.
(4) Please refer to the following wiring connection for integrating CT and PT together. (5) After
the completion of wiring, Power ON can only be conducted after the
confirmation together with the on-site electricians.
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