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Chapter 2: Meter Installation
Installation Guidelines
AC wire specifications: 1.3 to 2.0 mm diameter / 16 to 12 AWG
stranded wire, 600 V, type THHN, MTW, or THWN.
RS485 wiring specifications:
Cable type: Min. 3-wire shielded twisted pair (a 4-wire
cable may be used)
Wire cross-section area: 0.2- 1 mm²/ 24-18 AWG (a CAT5
cable may be used)
NOTE
If using a cable longer than 10 m/33 ft in areas where
there is a risk of induced voltage surges by lightning,
it is recommend to use external surge protection
devices. For details refer to
Protection on page 68. If grounded metal conduit are
used for routing the communication wires, there is no
need for a lightning protection device.
The meter is considered “permanently connected
equipment” and requires a disconnect means (circuit
breaker, switch, or disconnect) and overcurrent protection
(fuse or circuit breaker).
Revenue Grade Energy Meter with Modbus Connection Installation Guide MAN-01-00609-1.0
Chapter 2: Meter Installation
19