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5.4 Inputs

All voltage measurement inputs must originate at circuit breakers or fuses rated 5 Amps or
less. This does not apply to the neutral connector. You have to provide a method for
manually removing power from the device, such as a clearly labeled circuit breaker or a
fused disconnect switch in accordance with IEC 60947-2 or IEC 60947-3.
When using voltage transformers you have to ensure that their secondary connections
never will be short-circuited.
No fuse may be connected upstream of the current measurement inputs!
When using current transformers their secondary connectors must be short-circuited
during installation and before removing the device. Never open the secondary circuit under
load.
The connection of the inputs depends on the configured system (connection type).
PM 1000087 000 12
Device handbook SINEAX AM2000
10/91

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