Applications
3.5 DC network applications of 3VA molded case circuit breakers
3VA molded case circuit breakers with IEC certificate
176 Manual, 03/2019, A5E03603177010-03
Note
DC 2-pole (all-pole disconnection), non-grounded system
If there is no possibility of a double ground fault occurring, or if any ground fault that does
occur is dealt with immediately (ground-fault monitoring), 500 V will be the maximum
permissible direct voltage. In a non-grounded system, all poles must be disconnected.
Further circuits are available on request.
Insulating measures (Page 246)
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