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GENERAL
CHARACTERISTICS
The employment of
modern technologies,
best materials and
the accurate
controls of details
and of the end
product, are the
guarantee of the
quality, reliability
and security
which ROYAN, offers
the users of its cam
switches.
*
The various
trade-marks and
the approvals
given by
national and
international
body of approval
are a guarantee
of the quality
ROYAN,
*
Available in the
capacity from
12A to 63A
* Used for
break, switching
and starting of
electric
circuits with
inductive and
resistive loads.
* Made with
materials with
big resistance,
dimensional
stability and to
tracking.
* Double-break
contacts in
silver alloy.
* Screw
terminals with
binding-post
mantle.
* Wiring points
easy to find.
* Maneuvering
angles at 30 ,
45 , 60 , 90
* Many
accessories and
maneuvering
devices
available.
* Many series
schemes
available.
* Innurnerable
executive
variants in the
special scheme
combinations.
* Degree of
protection IP
according to the
regulations IEC
529.
* Easy and
economic
installation and
wiring.
* In conformity
with the main
national and
international
regulations.
REGULATIONS
ROYAN cam switches
are made in
conformity with the
regulations
IEC947-1, IEC947-3
CATEGORIES OF
EMPLOYMENT
Choosing the kind of
on-off switch
depends not only on
its scheme function
but
also on the
kind of use it is
provided for.
The knowledge
of these components
and of the exercise
values - voltage
current or
power - of the units
to control, causes
the choice of the
more suitable
and economic
on-off switch.
An useful and
immediate comparison
is
the choice of
the categories of
employment according
to what expressed by
the regulations
IEC947-1 IEC947-3.
The most common
categories of
employment in
alternating current,
shown more
precisely on
page 7, are as
follows:
AC-1: Connection
and
disconnection of
non-inductive or
weakly
inductive,
AC-21:
Resistance
furnaces,
AC-3: Starting
and stop through
interruption of
cage motor feed.
Summary table of
changeover switches
characteristics -
category of
employment
GENERAL ON-OFF
SWITCH WITH
DIVISION
FUNCTIONS
* Used to
separate the
whole electric
equipment of the
machine from the
feed sources in
case of machine
maintenance,
repair, cleaning
or of a long
service
interruption..
* It must be
able to
interrupt the
current rating
provided for the
category of
employment AC 1.
* The control
knob must not be
red. Black or
grey are
recommended.
* For general
emergency on-off
switch the
control knob
must be red with
a yellow ground
and it must be
possible to
block it in the
position open,
for example
through a
padlock.-
Version ROYAN
3L.
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