Cooper Crouse-Hinds GmbH
7
7
7
7
7
4
Field of application
The safety switches are suitable for heavy-
duty use in industrial areas!
The enclosure materials employed, including
the exterior metal parts, are made of high-
quality materials which ensure a corrosion
protection and resistance to chemical
substances corresponding to the
requirements in a „normal industrial
atmosphere“:
In case of use in an extremely aggresive
atmosphere, please refer to manufacture
Safety switches, industrial design KO
1.2.5
Safety switch 250 A Type ABB, OETL, 6 pole
Rated voltage:
400 V / 690 V 50/60 Hz
Rated current:
270 A
Perm. short circuit back-up fuse:
400 A / 400 A gG/gL
Switching capacity AC 23:
250 A / 250 A
1.2.6
Safety switch 315 A Type ABB, OETL, 6 pole
Rated voltage:
400 V / 690 V 50/60 Hz
Rated current:
315 A
Perm. short circuit back-up fuse:
400 A / 400 A gG/gL
Switching capacity AC 23:
315 A / 315 A
1.2.7
Safety switch 400 A Type ABB, OETL, 6 pole
Rated voltage:
400 V / 690 V 50/60 Hz
Rated current:
500 A
Perm. short circuit back-up fuse:
500 A / 500 A gG/gL
Switching capacity AC 23:
500 A / 350 A
1.2.8
Safety switch 630 A Type ABB, OETL, 6 pole
Rated voltage:
400 V / 690 V 50/60 Hz
Rated current:
630 A
Perm. short circuit back-up fuse:
630 A / 630 A gG/gL
Switching capacity AC 23:
630 A / 350 A
The technical data of the individual installation elements must be taken out from the respective
operating instructions. Dimensional drawings and circuit diagrams take you from the
attached documents.
5
Application / Properties
When maintenance, cleaning and repair work
is carried out on systems, machinery and
drives, the safety switches ensure the
reliable switching off on on poles of electrical
energy.
In addition to this, the safety switches are so
designed, that they also switch off the drive,
e.g. via the contactor that precedes the
auxiliary contacts. In relation to the main
contacts, this auxiliary contacts are lagging
while making and leading while breaking.
Due to the mechanical design of the safety
switch, compulsory opening of the contacts is
possible.
The safety switches fulfil the isolating
properties according to DIN EN 60 947-3,
(IEC 947-3).
To prevent unauthorized switching, the
switches can be locked in the „OFF“ position
by means of 3 padlocks, see Fig. 1, (shackle
diameter of the padlocks up to 4-6 mm).
A built-in locking device prevents the opening
of the enclosure in the „OFF“ position.
The data according to sections 3 and 4
shall be taken into account during use.
Applications other than those described
are not permissible without a written
declaration of consent from Messrs.
Cooper Crouse-Hinds / CEAG.
During operation the instructions stated
in section 7 of the operating instructions
shall be observed.
The sole responsibility with respect to the
suitability and proper use of the control
switches according to the basic
requirements of these instructions (see
technical data) lies with the operator.
6.1
Mounting
The switch can be mounted without opening
its enclosure (with the exception of the 10 A
safety switch).
When being mounted directly onto the wall,
the safety switches shall rest evenly only at
the fastening points provided for them.
The chosen screw shall match the fastening
hole (see dimensional drawing) and they shall
not damage the hole (e.g. use of a washer).
The safety switches are to be fastened to all
fastening spots.
If the screws are overtightened, the
apparatus may be damaged.
6
Installation
The relevant national regulations and the
generally recognized rules of engineering
apply for the installation and operation.
The improper installation and operation
of safety switches may result in the
invalidation of the guarantee.
6.2
Opening the device/
Electrical connection
Before opening the apparatus, ensure
that it has been isolated from the voltage
supply, or take appropriate protective
meassures.
Before opening , set the switch to the „ON“
position.
Switching at the shaft of the switch base
while the enclosure is open, is not
permitted (in order that the switch can be
properly reclosed).
The electrical connection of the apparatus
may only be carried out by skilled staff.
After dismantling built-in components in
order to facililate the introduction of
cables, such components will have to be
properly fitted in again prior to the
electrical connection.
The properly bared conductors of cables
shall be connected with due regard to the
respective regulations.
The insulation shall reach up to the
terminal. The conductor itself shall not be
damaged.
The minimum and maximum conductor
cross sections that can be connected
shall be observed .
