System overview
SIRIUS System Manual
GWA 4NEB 430 0999-02b
1-19
Safety
The devices are equipped with a two-wire connection. In other words, there
are two independent connections for each conducting path.
Only one conductor is connected to each clamping unit.
The clamp presses the conductor against the power rail, which is curved at
this point. The high specific compressive load thus achieved is gas-tight.
The clamp presses its flat surface against the conductor, thus avoiding dam-
age to it. The spring force of the clamp is designed so that it automatically
adjusts to the radius of the conductor. This allows any deformation of the
conductor to be dealt with. It is not possible for the clamping unit to loosen
by itself.
This connection is vibration- and shock-proof. These types of stress do not
damage the conductor or cause any loss in contact.
Machines and systems in which this type of stress occurs, such as vibrators
and elevators, are particularly suitable applications for this connection.
Transfer
accuracy
The contact pressure between the conductor and power rail is optimal, mak-
ing this clamp terminal suitable for high-voltage installations and also for the
transfer of voltages and currents in the mV and mA ranges in measuring
technology and electronics.
Tool
Screwdrivers can be obtained from the NSK (low-voltage switchgear) cata-
log for opening the Cage Clamp terminals.
Procedure
The following table shows you how to use the Cage Clamp:
Table 1-5: How to use a Cage Clamp terminal
Step Procedure
1
Insert the screwdriver into
the rectangularopening
until it stops.
The screwdriver head auto-
matically keeps the clamp
open.
2
Insert the conductor into
the oval terminal opening.
3
Remove the screwdriver.
The terminal closes, and
the conductor is thus secu-
rely clamped.
NSJ 00001
NSJ 00002
NSJ 00003
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