Mounting And Coding; Fig. 4-1: 3Tk2845 Multifunction Device For Snap-On Or Screw Mounting; Fig. 4-2: Mounting And Coding Of The Removable Terminals - Siemens 3TK2845 Manual

4.1

Mounting and Coding

The 3TK2845 multifunction device is designed for snap-on mounting on a
35 mm standard mounting rail complying with EN 50 022. The devices can also
be screw mounted with two push-in lugs, order number 3RP1903.

Fig. 4-1: 3TK2845 multifunction device for snap-on or screw mounting

Removable terminals simplify exchanging the device according to need. The
terminals are coded to prevent a mix-up.
Warning
Before exchanging the terminals, disconnect power from system and device.
The terminal blocks can be disconnected in the order a, b and can be connected in
the order c, d.
b

Fig. 4-2: Mounting and coding of the removable terminals

3TK2845 Multifunction Device Manual
GWA 4NEB 926 2087-22 DS 01
35 mm standard mounting rail
C
A
a
Mounting, Wiring, Initial Start-up
3RP1903
D
c
B
A, B, C, D:
Coding
d
4-3