User Guide

SIRIUS System Manual
GWA 4NEB 430 0999-02 DS 01
3-1
3
3RT1 contactors/
3RH1 control relays
Section Subject Page
3.1 Specifications/regulations/approvals 3-4
3.1.1 Utilization categories 3-4
3.1.2 Positively driven operation 3-8
3.1.3 Safe isolation 3-8
3.1.4 Explanation of terms 3-10
3.2 Device description 3-11
3.2.1 Coil systems S00 to S3 3-14
3.2.2 Coil systems S6 to S12 3-14
3.2.2.1 The conventional coil 3-15
3.2.2.2 The electronic coil, in general 3-16
3.2.2.3 Electronic coil 3-17
3.2.2.4 Remaining life time indication RLT (RLT = remaining life
time)
3-23
3.2.3 Short-circuit protection for SIRIUS contactors 3-25
3.2.4 Operation 3-26
3.2.4.1 General information 3-26
3.2.4.2 Contact reliability 3-27
3.2.4.3 Electrical service life 3-28
3.2.4.4 Ambient temperature 3-32
3.3 Application and areas of use 3-35
3.3.1 3RT10 contactors with 3 main contacts for switching
motors
3-35
3.3.2 3RT14 contactors with 3 main contacts for switching resis-
tive loads (AC-1)
3-36
3.3.3 3RT12 Vacuum contactors 3-37
3.3.4 3RT13 and 3RT15 contactors with 4 main contacts 3-40
3.3.5 3RT16 capacitor contactors 3-41