SIRIUS 3RA28 function modules for mounting on 3RT2 contactors
7.2 Product description
SIRIUS Innovations
646 System Manual, 01/2011, A8E56203870002-03
7.2.3 Applications
7.2.3.1 Function modules for direct-on-line start
Applications
The function modules for direct-on-line start are used for the time-delayed switching of
contactors. The following different function modules are available:
● Solid-state timing relay with semiconductor output
● Solid-state time-delay auxiliary switch with 1 CO contactor or 1 NC contact/1 NO contact
Features of direct-on-line starters
The function module for direct-on-line start has the following features:
● All modules with wide control voltage range
● Integrated varistor (surge suppressor)
● One module for both sizes S00 and S0
● Wide voltage range (24 to 240 V AC/DC)
● 3 selectable time ranges (1 s, 10 s, 100 s)
● Operating time adjustment from 5 to 100% per time range
● Switch position indicator for the contactor below (plunger)
Reference
More information ... Is available in ...
About application areas The chapter titled Configuration (Page 656)
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