Supplementary data
Operating Manual PNOZ m EF 4DI4DOR
1002702-EN-08
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9
Supplementary data
9.1
Service life graph for the relay contacts
The service life graphs indicate the number of cycles from which failures due to wear must
be expected. The wear is mainly caused by the electrical load; the mechanical load is negli-
gible.
Cycles x 1000
Switching current (A)
Fig.: Service life graphs at 24 VDC and 230 VAC
