This preview shows page 1. Sign up to view the full content.
Unformatted text preview: ntrol switches, limit switches
– Snap-action or slow make-and-break switches
– Unenclosed position switches
– Plastic-clad position switches
– Metal-clad position switches
– Safety position switches
– Precision position switches
The most important components of a mechanical micro limit switch are the contacts.
The most widely used contact materials are: gold-nickel, fine gold, silver, silvercadmium oxide, silver-palladium and silver-nickel. By making an appropriate choice
of contact material, it is possible to achieve favourable operating conditions in any
field of operation of limit switches.
By fitting actuators, limit switches can be used for a wide range of application
possibilities. Typical types of such actuators are shown in the illustration. 26 © Festo Didactic GmbH & Co. KG • FP 1110 2. Mechanical position switches a) b) c) a) Roller lever
b) Roller lever with idle return
c) Whisker actuator Fig. 2.1.2: Actuators for mechanical limit switches The table below lists...
View Full Document
This note was uploaded on 11/01/2012 for the course CHEMICAL 102 taught by Professor Jamesrodriguez during the Spring '12 term at Universidad Politécnica de Cartagena.
- Spring '12