Mitsubishi Electric QE82LG User Manual page 62

7 Setting and procedure for operation
7.5.3.2 Voltage circuit connection
(1) When 220 V or higher is loaded to the voltage circuit, use a transformer for gauge.
(2) For connection to P1 to P3 terminals on QE82LG, connect the specified voltage according to
the phase wire system. Make sure that terminal symbols are correct. If phase wires are
connected incorrectly, accurate measurement cannot be performed.
(3) In order to perform maintenance work such as changing the wire layout and replacing
equipment, we recommend that you connect protective device (breaker) for the voltage input
circuit (P1, P2, and P3 terminals).
7.5.3.3 FG terminal connection
• For the actual usage, connect the FG terminal to ground. (D-type ground: Type 3)
• Do not connect to FG terminal during the insulation resistance test and pressure test.
Breaker
P2
7 - 13
P1
P3
QE82LG