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2.
Installation and wiring
2.2 Wiring the CTs (continued)
Important
• For safety purposes, turn off the mains power and the breaker to ensure there is no power supply while
you are working.
• Do not try to connect or disconnect CTs or CT cables during measurement or while the power of this
product is on. There is a danger of electric shock. Furthermore, this may cause this unit and the CT to
malfunction.
• To wire the CT input terminals, use AWG18-14 wire (with a cross-section of 0.75 to 2.0 mm
2
) and
crimping terminals of the round shape or Y-shape (5.8mm wide or less) compatible with the M3 screw.
• The recommended torque for screwing the 3mm screws onto the terminal panel is 0.5 to 0.58 N·m.
Make sure the crimping terminal is pushed all the way in and tightened firmly. After fixing the wiring,
confirm that the wire is fixed securely.
