Fig. 2-5: Pin Assignment For Power Terminal - Siemens ecofast 3RK1702-2GB18-0AA1 Manual

2.4 Power terminal
Notes
Caution
The supply voltage for the 24 V DC brake (optional) must be drawn from a
power supply unit with safety separation (PELV) in order to safeguard
against accidental voltage transfer in the event of a fault.
It is therefore not permissible to connect any loads with the "extra-low
voltage" degree of protection to the braking circuit.
Caution
The brake must not be fed from the power supply unit of the 24 V DC swit-
ched supply (AUX PWR, black AS-i cable).
2.4.1 Pin assignment
Han Q4/2 pin
Pin
1
2
3
4
11
12

Fig. 2-5: Pin assignment for power terminal

ECOFAST Motor Starters
GWA 4NEB 950 5221-12 DS 02
Motor starter
Motor
Assignment
Phase L1
Phase L2
Phase L3
Neutral N
PE
—
—
Wiring and interfaces
2-9