Three Phase and Three Phase CT Type PMSFL User Manual - 6
Installing / Connecting the Meters
We recommend that the connecting wire which is used to connect the meter to
the outside circuit should be sized according to local codes and regulations for
the amps of the circuit breaker or over current device used in the circuit.
An external switch or a circuit-breaker should be installed on the inlet wire, which
will be used as a disconnection device for the meter. And there it is
recommended that the switch or circuit-breaker is near the meter so that it is
more convenience for the operator. The switch or circuit-breaker should comply
with the specifications of the building electrical design and all local regulations.
An external fuse or thermal cut-off which will be used as a over-current protection
device for the meter must be installed on the supply side wire, and it is
recommended that the over-current protection device is near the meter so that it
is more convenience for the operator. The over-current protection device should
comply with the specifications of the buildings electrical design and all local
regulations.
This meter can be installed indoor directly, or in a meter box which is waterproof
outdoor, subject to local codes and regulations.
The meter has to be installed against a wall which is fire resistant.
The meter has to be installed in a good ventilated and dry place.
The meter can be installed on a 35mm DIN rail or direct on a meter board with
screws.
When the meter is installed in an area with frequent surges due to e.q.
thunderstorms, welding machines, inverters etc, protect the meter with Surge
Protection Devices.