Description
2.8 Electronic trip unit
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
89
2.8.1
Connections
The connections on the ETU are illustrated in the diagram below:
①
Interface for an external current transformer for N conductor
②
Interface for connection of an EFB300 external function box
③
Interface for connection of an RCD820 residual current device
④
Connection for test devices TD300 and TD500