Fronius Smart Meter 240V-3 UL Manual De Instrucciones página 10

Circuit Protec- The Fronius Smart Meter is considered "permanently connected equipment" and
tion requires a disconnect means (circuit breaker, switch or disconnect) and overcur-
rent protection (fuse or circuit breaker).
The Fronius Smart Meter only draws 10-30 mA, so the rating of any switches, dis-
connects, fuses and / or circuit breakers is determined by the wire gauge, the
mains voltage and the current interrupting rating required.
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Line Wiring -
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Connect each conductor to the appropriate phase; also connect ground and
neutral (if applicable). The neutral connection "N" is not required on delta mod-
els but we recommend connecting it to ground if neutral is not present.
The screw terminal can handle wire up to 12 AWG. Connect each voltage line to
the green terminal block as shown in the following figures. After the voltage lines
have been connected, make sure both terminal blocks are fully seated in the
Fronius Smart Meter.
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The switch, disconnect or circuit breaker must be within sight and as close as
practicable to the Fronius Smart Meter and must be easy to operate.
Use circuit breakers or fuses rated for 20 amps or less.
Use ganged circuit breakers when monitoring more than one line voltage.
The circuit breakers or fuses must protect the mains terminals labeled L1, L2
and L3. In the rare cases where neutral has overcurrent protection, the over-
current protection device must interrupt both neutral and ungrounded con-
ductors simultaneously.
The circuit protection / disconnect system must meet IEC 60947-1 and IEC
60947-3, as well as all national and local electrical codes.
Always turn off power before connecting the line voltage inputs to the Froni-
us Smart Meter.
For the line voltage wires, 16 to 12 AWG stranded wire, type THHN, MTW or
THWN, 600 V are recommended.
Do not place more than one wire per screw terminal; use separate wire nuts
or terminal blocks if needed.
Verify that the line voltages match the line-to-line and line-to-neutral values
printed in the white box on the front label.