Datasheet

— with type of assignment 2 required
gG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A
(415V, 80kA)
● for short-circuit protection of the auxiliary switch
required
fuse gG: 10 A
Installation/ mounting/ dimensions
Mounting position +/-180° rotation possible on vertical mounting surface; can be
tilted forward and backward by +/- 22.5° on vertical mounting
surface
Mounting type screw and snap-on mounting onto 35 mm standard mounting rail
according to DIN EN 60715
● Side-by-side mounting
Yes
Height 70mm
Width 45mm
Depth 73mm
Required spacing
● with side-by-side mounting
— forwards
10mm
— upwards
10mm
— downwards
10mm
— at the side
0mm
● for grounded parts
— forwards
10mm
— upwards
10mm
— at the side
6mm
— downwards
10mm
● for live parts
— forwards
10mm
— upwards
10mm
— downwards
10mm
— at the side
6mm
Connections/Terminals
Type of electrical connection
● for main current circuit
spring-loaded terminals
● for auxiliary and control current circuit
spring-loaded terminals
Type of connectable conductor cross-sections
● for main contacts
— solid
2x (0.5 ... 4 mm²)
— single or multi-stranded
2x (0,5 ... 4 mm²)
— finely stranded with core end processing
2x (0.5 ... 2.5 mm²)
— finely stranded without core end
processing
2x (0.5 ... 2.5 mm²)
● at AWG conductors for main contacts
2x (20 ... 12)
3RT2017-2BB42 Subject to change without notice
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12/19/2018 © Copyright Siemens