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Find suitable relay modules for your application
Basics for relay module selection
Electromechanical relays are a varied and cost-effective solution for a
wide range of switching processes. They can be used for level and power
adaptation and form interfaces between control, signalling and regulating
equipment and peripherals. In spite of rising raw material prices, they are
still very inexpensive and can be easily integrated into a
wide variety of circuit types.
Relay modules from Weidmüller are extremely reliable,
durable, and available in many different designs. The diversity of their
applications in the various industrial sectors makes it necessary to select
a suitable relay for each specific application. The following applies: Due to
their design, relay modules are subject to mechanical and electrical wear,
which must be taken into account when relay circuits are set up.
EN 60947-4-1 and EN 60947-5-1 describe various industrial reference loads
such as resistive, capacitive, and inductive loads that stress the switching contact
of a relay modules more or less. Electrical loads are formed out of a mixed load
with ohmic, capacitive, and inductive load shares, though in practice, loads with
a large inductive load share are used mostly. These include contactors, solenoid
valves, motors, etc. We will take a closer look at these areas of application
in the following.
A.2 2737920000
Selection guide
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Basics for relay module selection