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2.4.2.4
Rotary coding switches
The ETU300 electronic trip unit has 5 rotary coding switches for parameterizing the basic
protection functions.
10 fixed values can be set mechanically for each rotary coding switch.
2.4.3
Interfaces
2.4.3.1
Interface for external voltage supply via the TD400
The ETU300 electronic trip unit can be supplied with external voltage for activation and
status checking using the TD400 commissioning, test and service tool, article number
3VW9011-0AT40.
The TD400 is connected to the ETU300 using the separately available adapter with
article number 3VW9011-0AT46.
(1)
(2)
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
Adapter
TD400 commissioning, test and service tool
Description
2.4 ETU300 electronic trip unit
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Troubleshooting
