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Why are cheap relays so often driven by optocouplers?
Cheap small relays typically are particularly bad, and making them better tends to make the relay more expensive, bigger and less efficient. Circuits with multiple inputs and outputs are particularly prone.
What can Wago relay sockets be used for?
WAGO’s 788 Series Relay Sockets are ideal for switching applications in both industrial and process automation. These modules can be used either with two channels or for reliably switching higher loads (e.g., lamp loads) up to 16 A.
What can I do with a WAGO optocoupler module?
Whether relay sockets or pluggable relay and optocoupler modules, WAGO’s array of relays and optocouplers offer a solution for any requirement. Use them in any sector of industry including process technology and power engineering, railway applications and machine engineering, as well as general control cabinet construction.
Which is the best socket for a switching relay?
WAGO’s sockets with a miniature switching relay or a solid-state relay are the perfect combination of housing and electronics. WAGO’s 859 Series Relay Modules with a Miniature Switching Relay and Optocoupler Modules are ideal for any industrial interface applications. Their slim design saves valuable control cabinet space.
Which is an example of a relay switch?
Relays are mechanical switches ,compare to semi-conductor there switching time are very slow , but it switch in relatively high voltage,One example use of relays are in the Car or bike as electric ignition they increase relatively low current from the battery to high thereby igniting the engine.
What should the foreword voltage of an optocoupler be?
Be aware to check the foreword voltage of the optocoupler , it’s generally about 1.4v ( luckily with no datasheet mine work fine with 5v and 1 k resistor) . always use a resistor to cut down the voltage so it does not over power the led inside the optocoupler and burn it out .
What kind of circuit is an opto coupler?
An opto-coupler is a device which encapsules an LED and a photo-transistor inside a hermetically sealed, water proof, light proof package in the form of an 8 pin IC (resembling a 555 IC). The LED is terminated over a couple of pin outs, while the three terminals of the photo-transistor is terminated over the other three assigned pin outs.