Connections Of The Voltage Terminals - Siemens SIPROTEC 4 Manual

By disposing of these products correctly you will help to save valuable resources and prevent any potential
negative effects on human health and the environment.
NOTE
i
i
Our products and batteries must not be disposed of as household waste. For disposing batteries it is neces-
sary to observe the local national/international directives.
Disposal of Mobile Storage Devices (e.g. USB Sticks and Memory Cards)
When disposing of/transferring mobile storage devices, using the format or delete functions only changes the
file management information and does not completely delete the data from your mobile storage device. When
disposing of or transferring a mobile storage device, Siemens strongly recommends physically destroying it or
completely deleting data from the mobile storage device by using a commercially available computer data
erasing software.
REACH/RoHS Declaration
You can find our current REACH/RoHS declarations at:
https://www.siemens.com/global/en/home/products/energy/ecotransparency/ecotransparency-down-
loads.html
NOTE
i
i
You can find more information about activities and programs to protect the climate at the EcoTransparency
website:
https://www.siemens.com/global/en/home/products/energy/ecotransparency.html

Connections of the Voltage Terminals

3.1.2.2
Fixing Elements
The fixing elements for the voltage transformer connection are part of the voltage terminal (housing side).
They have a stress-crack- and corrosion-resistant alloy. The head shape of the terminal screw allows for using a
flat screwdriver (4.0 mm x 0.8 mm / 0.16 in x 0.031 in) or a crosstip screwdriver (PZ1). PZ1 is recommended.
Cable Lugs and Wire Cross-sections
The connection mode available is the connection as single cable. As single cables, solid conductors as well as
stranded conductors with or without conductor sleeves can be used. We recommend using twin cable end
sleeves when connecting two single cables. We recommend the twin cable end sleeves of the series PN 966
144 from Tyco Electronics.
When connecting single cables, the following cross-sections are allowed:
Cable cross-sections:
Connector sleeve with plastic collar
Stripping length:
(when used without conductor sleeve)
With terminal points lying one below the other you may connect single conductors and jumpers (Order No.
C53207-A406-D194-1) together. Please make sure that neighboring jumpers are built in/connected alter-
nately.
Mechanical Requirements
The fixing elements and the connected components are designed for the following mechanical requirements:
Permissible tightening torque at the terminal screw
SIPROTEC 4, 7RW80, Manual
C53000-G1140-C233-4, Edition 07.2018
Mounting and Commissioning
3.1 Mounting and Connections
AWG 20-14 (0.5 mm 2 to 2.0 mm
L = 12 mm (0.47 in)
12 mm (0.47 in)
Only copper cables may be used.
1.0 Nm (8.85 lb.in)
2 )
131