G - AA Electric

Optocoupler – Overview
Optocoupler
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Owing to the increasing degree of automation, the separation of
potential between control circuits (control side / field side) is
becoming increasingly significant. The connection between the
controller, which is the key component of every automated system,
and the various sensors and actuators must be electrically
safe and free of any feedback. Optocouplers are finding increasing
use here. They provide the necessary degree of safety and
feature other technical properties such as:
• Low power consumption on the controller side
• High switching frequency
• No contact bounce
• Wear-free switching
• Vibration resistance
• Use independent of positioning
• No need for mechanical parts
• Long service life
• High insulation voltage
Accordingly, optocouplers are a good alternative to the traditional,
mechanical relay interfaces. Modules with different input
voltages and enclosure technologies are available for industrial
use.
CE marking
Weidmüller’s optocouplers carry the CE mark and comply with
the requirements laid down by EN 50 081 part 1 and
EN 50 082 part 2. They can be used in a wide range of applications
and industries.
Suitable ESD measures must be taken during installation.
Overvoltage protection must be provided for long leads as protection
from lightning.
Sold by AA Electric 1-800-237-8274 Lakeland, FL • Lawrenceville, GA • Greensboro, NC • East Rutherford, NJ www.A-Aelectric.com
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