Configuration
6.10 Contactors with extended operating range
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
115
Other contactors with extended operating range
As well as the contactors with solid-state operating mechanisms approved according to IEC
60077-2, contactors and contactor relays with conventional operating mechanisms and
series resistors in the form of a coil circuit are also available. These devices have an
operating range of 0.7 - 1.25 x U
s
, and a temperature range of -40° C to +70° C.
The series resistor is installed in an attached module. The NC auxiliary contact is integrated
into the basic unit and is already fully wired. Expansion with 4-pole auxiliary switches on the
front is possible for contactors and contactor relays. The contactors can be additionally
expanded with lateral auxiliary switches.
Power rating of three-phase motors [kW]
at 400 V
S00 3RT201.-2K.42-0LA0 5.5
In sizes S00 and S0, coupling relays (motor contactors and contactor relays) with the
extended operating range 0.7 - 12.5 x U
s
are additionally available.
The coupling relays in size S0 are connected with varistors.
For a temperature range of 60° C to 70° C, the minimum clearance is 10 mm.
It is not possible to fit the 3RH coupling relays with auxiliary switches.
Power rating of three-phase motors [kW]
at 400 V
S00 3RT2.1.-2K… 5.5
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