User Manual Q&AAnswer
Feb 22, 2025 - 09:02 AM
To connect the to the supply voltage, follow these steps:
1. Ensure that the supply voltage corresponds to the details on the ratings plate and that the voltage and frequency are within the specified limits.
2. In building installations, protect the supply voltage with a UL/IEC approved circuit breaker or a fuse.
3. Install the device near the isolation device and in a location that is easily accessible for the user.
4. If the neutral conductor terminal of the source is not grounded, provide a fuse for the neutral conductor.
5. The device derives its supply voltage from the measurement voltage L1-N, L2-N, and L3-N. At least one phase must lie within the nominal voltage range.
6. Ensure that the device has a voltage of at least 100 Veff in at least one phase (L-N) for operation.
7. Before starting any work, make sure to render the system free of voltage and check that the system is free of electrical energy.
Please note that these instructions are a summary and it is important to refer to the Janitza UMG 103-CBM Power Analyser Instruction Manual for detailed and specific instructions on connecting the device to the supply voltage.
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