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6.16.1.2
Contact service life of auxiliary and main contacts (size S2)
Contact service life of auxiliary contacts
This requires operating mechanisms that switch at
random, i.e. not synchronized with the phase angle of the
supply system.
The contact service life is essentially dependent on the
breaking current.
The characteristic curves apply to:
Integrated auxiliary contacts on 3RT20
•
Auxiliary switch blocks 3RH2911-., 3RH2921-. for
•
contactors size S2.
Integrated auxiliary contacts and contacts in the auxiliary switch blocks for contactors (size S2): 6 A
1)
Contacts in auxiliary switch blocks for contactors size S2: 6 A
2)
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
6.16 Contact service life of auxiliary and main contacts
Legend for diagram:
I
= Breaking current
a
I
= Rated operational current
e
Configuration
169
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