SIRIUS 3RT2 contactors/contactor assemblies
2.7 Accessories
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
167
Auxiliary switch blocks for contactor relays
The contactor relays with 4 contacts according to DIN EN 50011, with identification
code 40E, can be expanded by adding auxiliary switch blocks 80E to 44E, to give contactor
relays with 8 contacts according to DIN EN 50011. Identification codes 80E to 44E on the
auxiliary switch blocks apply to complete contactors. These auxiliary switch blocks (3RH29
11–1GA.) cannot be combined with contactor relays with identification code 31E or 22E;
these are coded. All contactor relays with 4 contacts according to DIN EN 50011, with
identification codes 40E to 22E, can be expanded by adding auxiliary switch blocks 40 to 02,
to give contactor relays with 6 or 8 contacts according to DIN EN 50005. The identification
numbers on the auxiliary switch blocks only apply to the attached auxiliary switch blocks.
Fully mounted 8-pole 3RH22 contactor relays are also available; the 4-pole auxiliary switch
block on the second level cannot be removed. The terminal designations comply with
DIN EN 50011.
Time-delayed auxiliary contacts
The 3RA28 function modules are available for applications which require time-delayed
auxiliary contacts.
Reference
More information ... Can be found in the chapter titled ...
About the time-delayed switching of contactors 3RA28 function modules for mounting on 3RT2
contactors (Page 211)
2.7.2.3 Mounting/Disassembly
The procedures for mounting and disassembling auxiliary switch blocks for mounting on the
front and laterally are described below.
Mounting the 2-/4-pole auxiliary switch block on the front (size S00)
Step Operating instruction Image
1 Push the auxiliary switch, which is mounted
on the front, into the location hole on the
contactor. Pull it down until it engages.
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