||Very less 1 milliwatt
||High 2 watt
||No moving contacts. So, No problem of Arcing No needs to replace contacts.
||Moving contacts are present. Problem like Arcing, Replacement of contacts is necessary.
|Effect of Gravity(Gravitational force)
||No effect of Gravity on operation of static relay.
||Gravitational force can affect the relay.
|Position of relay
||Relay can be installed at any location and at any position.
||This relay has to be installed straight only and away from magnetic field.
||1 relay can perform various functions. (1 relay can be used as over current relay, under voltage relay etc.)
||1 relay can perform only 1 function. (1 relay can be used as over current only for under voltage we use another relay).
|Delay in operation
|Accuracy and speed
|Effect of vibrations and shocks
||No or less effect
||Yes, vibrations directly
|External supply required
||Yes, Dc supply is required for level detector, timing circuit etc.
||No need of external supply
||Can damage this relay because electronic components are used.
||Change of voltage causes no effect.
||Cheap. (Not costly)
|Effect of temperature
||May damage the electronic part
||No effect of temperature.
Note: Last points are Disadvantages of static Relays. Similar advantages and disadvantages of Microprocessor Based relays.