User Manual

GAMMA instabus
Technical Product-Information
July 2020
Power Supply Unit N 125/02 5WG1125-1AB02
Power Supply Unit N 125/12 5WG1125-1AB12
Power Supply Unit N 125/22 5WG1125-1AB22
4 / 4
Siemens Schweiz AG
Smart Infrastructure
Global Headquarters
Theilerstrasse 1a
CH 6300 Zug
RS-AA
© Siemens AG 2020
Subject to change
Update: http://www.siemens.com/gamma-td
Mounting and Wiring
Connecting mains (figure 3)
- The mains are connected via screwless plug-in
terminals (E1).
- Remove approx. 10…11 mm of insulation from the
wire (E2) and plug it into the terminal (E1).
Disconnecting the mains (figure 3)
- Press the terminal lock (E3) of the terminal (E1) with a
screwdriver and
- remove the wire (E2) from the terminal (E1).
E3
E1
E2
E1
E2
10...11 mm
Figure 3: Connecting and disconnecting wires
Slipping on of the safety extra low voltage block
− slip the connection block onto the guide slot and
− press the connection block down to the stop
Connecting the safety extra low voltage block (figure 4)
− The connection block (F2) can be used with single
core conductors Ø 0.6...0.8 mm.
- The connection block (F2) consists of a red (yellow)
connector (F2.1) and a black (white) connector (F2.2).
Each connector can take up to four wires with single
core conductors Ø 0.6...0.8 mm.
− Remove approx. 5 mm of insulation from the conduc-
tor (F2.4) and plug it into the connection block (F2)
(red = +, black = -).
Disconnecting the safety extra low voltage block
(figure 4)
- Unplug the connection block (F2) and remove the bus
cable conductor (F2.4) while simultaneously wiggling
it.
F2.1
F2.2
F2
F2.3
F2
F2.4
5 mm
F2
F2.4
Figure 4: Connecting and disconnecting
safety extra low voltage block
Dimension Diagram
Dimensions in mm
b
90
44
55
45
b = 4 SU
1 Standard unit (SU) = 18 mm
General Notes
• The operating instructions must be handed over to the
client.
• Any faulty device is to be sent together with a return
delivery note of the local Siemens office.
• For any technical questions, please consult:
 [phone]
 [phone]
 [e-mail]
www.siemens.com/automation/support-request