Data Sheet

Type of electrical connection
● for main current circuit
screw-type terminals
● for auxiliary and control current circuit
screw-type terminals
● at contactor for auxiliary contacts
Screw-type terminals
● of magnet coil
Screw-type terminals
Type of connectable conductor cross-sections
● for main contacts
— solid
2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
— single or multi-stranded
2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), 2x 4 mm²
— finely stranded with core end processing
2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
● at AWG conductors for main contacts
2x (20 ... 16), 2x (18 ... 14), 2x 12
Connectable conductor cross-section for main
contacts
● solid
0.5...4mm²
● stranded
0.5...4mm²
● finely stranded with core end processing
0.5...2.5mm²
Connectable conductor cross-section for auxiliary
contacts
● single or multi-stranded
0.5...4mm²
● finely stranded with core end processing
0.5...2.5mm²
Type of connectable conductor cross-sections
● for auxiliary contacts
— single or multi-stranded
2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), 2x 4 mm²
— finely stranded with core end processing
2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
● at AWG conductors for auxiliary contacts
2x (20 ... 16), 2x (18 ... 14), 2x 12
AWG number as coded connectable conductor cross
section
● for main contacts
20...12
● for auxiliary contacts
20...12
Safety related data
B10 value
● with high demand rate acc. to SN 31920
1000000
Proportion of dangerous failures
● with low demand rate acc. to SN 31920
40%
● with high demand rate acc. to SN 31920
73%
Failure rate [FIT]
● with low demand rate acc. to SN 31920
100FIT
Product function
● Mirror contact acc. to IEC 60947-4-1
Yes
T1 value for proof test interval or service life acc. to
IEC 61508
20y
Protection against electrical shock finger-safe
3RT2017-1MB42-0KT0 Subject to change without notice
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09/11/2019 © Copyright Siemens