- Disconnecting devices must be mounted within sight and as close as possible to the
Fronius Smart Meter TS; they must also be easy to use.
- The disconnecting devices must satisfy the requirements of IEC 60947-1 and IEC
60947-3, as well as all national and local regulations for electrical systems.
- Use overcurrent‑protection rated for max. 100 A.
- To monitor more than one mains voltage, use connected‑automatic circuit breakers.
- The overcurrent‑protection must protect the mains terminals with the designations
L1. In rare cases, the neutral conductor has an overcurrent‑protection, which must
interrupt both neutral and non-earthed cables concurrently.
Cabling IMPORTANT!
Always switch off the power supply before connecting the mains voltage inputs to the
Fronius Smart Meter TS.
Recommended thickness of stranded mains voltage cables for the terminals of the
measuring input and measuring output:
- Wire: 1 - 25 mm²
- Recommended torque: max. 2.8 Nm
Recommended thickness of stranded wires for data communication terminals:
- Wire: min. 0.05 mm²
- Recommended torque: max. 0.5 Nm
Connect each voltage cable to the terminal strip as shown in the graphics below.
1 phase, 2 conductors
1 phase, 2 conductors
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