Rotary geared limit switches are used to control machines by stopping the motor when the machine parts reach their end positions. These switches have rotating cams that activate contact elements to turn off the motor. The cams are attached to a shaft that turns at the same speed as the motor, and this shaft extends into the switch housing. The cams can be adjusted to set the exact points where the motor should stop.
These limit switches are robust, adjustable, and versatile, designed to safely and precisely control machinery in tough industrial settings.
The limit switch uses a strong
worm gear drive. A worm gear is a type of gear system where a worm (a
gear in the form of a screw) meshes with a worm wheel (a gear). This
setup provides powerful and precise control over the movement and
positioning of the cams.
Steplessly Positioned Cams:
The cams in the switch can be
adjusted smoothly without fixed steps. This means you can finely tune the
exact position where the motor supply will be interrupted to stop the
motion. This adjustment allows for precise control over where the
machine`s movement should end.
Tripping Motor Supply:
When the cams reach the
pre-set positions, they activate the limit switch to cut off the motor’s
power. This stops the motion of the machine at the designated point,
preventing overtravel or damage.
IP-54 Protection:
The limit switches are
available with an IP-54 rating, which means they are protected against
dust (limited ingress) and against water jets from any direction. This
makes them suitable for use in environments where they might be exposed
to dust and water.
N.O. & N.C. Contacts
Combination:
The switches have both
Normally Open (N.O.) and Normally Closed (N.C.) contacts. N.O. contacts
are open when the switch is not activated and close to complete a circuit
when activated. N.C. contacts are closed when the switch is not activated
and open when activated. This combination provides flexibility in how the
limit switch can be used in a control system.
Applications:
These limit switches are
suitable for use on various heavy machinery and industrial equipment such
as hoists, mills, and steel plants. They are designed to handle the
demands of these environments.
Contact Rating:
The switches are rated for use
with AC voltage. The specific voltage rating (which should be filled in
the blank) indicates the maximum voltage the contacts can handle safely
without damage.
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