3Rt26 Capacitor Contactors (Sizes S00 To S3); 6.16 Contact Service Life Of Auxiliary And Main Contacts - Siemens SIRIUS 3RT Manual

6.16.2

3RT26 capacitor contactors (sizes S00 to S3)

6.16.2.1 Contact service life of auxiliary and main contacts
Contact service life of the 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 for 3RT26.
Integrated auxiliary contacts (size S0) and contacts in the auxiliary switch blocks for
contactors (size S00 and S0): 6 A
● 3RH2911-., 3RH2921-. auxiliary switching blocks for contactors of sizes S00, S0, S2 and
S3.
Contacts in the auxiliary switching blocks for contactors of sizes S00 and S0: 6 A
Legend for diagram:
I = Breaking current
a
I = Rated operational current
e
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006

6.16 Contact service life of auxiliary and main contacts

Configuration
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