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Working on the Device
5.3 Installing Current and Voltage Terminals
Permissible tightening torque at clamping screw
Permissible tensile force for each connected
conductor
Connections of Voltage Terminals
5.3.3
5.3.3.1
Connections of Voltage Terminals with Spring Clips
Fasteners
The fasteners for the voltage connection are part of the voltage terminal (housing side). They are made of a
stress-crack and corrosion-free alloy. The head shape of the clamping screw allows the use of a DIN 4.0 x 0.8
screwdriver or a PZ1 Phillips screwdriver. Siemens recommends a PZ1 Phillips screwdriver.
Connection Elements and Conductor Cross-Sections
The single cable connection type is available for the connection. You can connect solid conductors as well as
stranded-wire conductors with and without bootlace ferrule as single cables. Siemens recommends using twin
bootlace ferrules of series PN 966 144 made by Tyco Electronics for the connection of 2 single cables.
The following cable cross-sections can be used for the connection of single cables:
Cable cross-section
Bootlace ferrule with plastic shroud
Stripped length (for use without bootlace ferrule)
Single cables and bridges can be connected together for horizontally arranged clamping points. Note that
adjacent bridges are installed reciprocally.
[dw_bootlace_ferrule, 1, en_US]
Figure 5-12
Mechanical Requirements
The fasteners and their associated components are designed for the following mechanical requirements:
Permissible tightening torque at clamping screw
Permissible tensile force for each connected
conductor
5.3.3.2
Connections of Voltage Terminals with Screw Connection
For connection of the following module, industry standard terminals are used (see
•
Input and output module IO060
50
Twin Bootlace Ferrules
2.7 Nm
For solid conductors, the max. permissible tightening
torque is 2 Nm.
80 N following IEC 60947-1 (VDE 660, part 100)
AWG (American Wire Gauge) 20-14 (0.5 mm
2.5 mm
2
(0.0008 in
2
to 0.0039 in
or bare stranded wire with or without UL listed boot-
lace ferrule
Use AWG 14 (2,5 mm
2
(0.0039 in
5 A to 10 A.
Use copper conductors only, at least certified for a
temperature of +105 °C (221 °F).
L = 12 mm (0.47 in)
12 mm (0.47 in), only copper lines may be used.
1.0 Nm
50 N following IEC 60947-1 (VDE 660, part 100)
SIPROTEC 5 Compact, Hardware Description, Manual
C53000-G5300-C002-3, Edition 12.2021
2
to
2
)) solid
2
)) for currents from
Figure
5-5):
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