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Installation and operating instructions, ATS021
1. Safety notes
Before using the ATS021 unit, read the following "Safety notes":
using the unit without following the indications can lead to malfunctioning and, in
some cases, hazardous conditions.
If there are doubts about safe use, the unit must be put out of service.
The automatic transfer switch ATS021 must be prevented from operating the circuit breakers before:
• accessing the circuit breakers
• performing maintenance on circuit breakers or any electrical circuits powered by them
• performing any operation where opening/closing the circuit breaker could be dangerous
During maintenance:
• set the "Manual" mode.
• lock the circuit breaker mechanically in the open position.
Safe use is not guaranteed if:
• the device has been damaged during transport
• the device shows visible signs of damage
• the device does not work
• the device has been stored for a long period
If the device operates on a circuit without warning, it must be excluded from the control circuit even if it
seems to be in stand-by
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1. Safety notes
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