Few Things to Keep In Mind While Selecting Right Solid State Relays

You need to consider a lot of important factors, such as the SSR performance parameters and application conditions if you need a Solid State Relay. Few other important factors are over-volt conditions and the load capacity of SSR that are kept in mind by solid state relay manufacturer. It becomes necessary if you want to ensure the reliability of the unit and make it stand the test of time. Below are provided few tips that will help you go for the right SSR.

Consider the Input Ends of the Unit

You can select from two types of units: AC and DC input control. The latter utilizes a source circuit that provides a constant current. In such a case, the range of input voltage is between 3 and 32 volts DC. It is designed in a way so that it can be connected with a microcomputer interface and TTL circuit.

Apart from this, you may even find a way to pay attention to the negative and positive polarity of the terminals. The voltage is between 70 and 280 volts in the case of a multi timer relay.

Considering the Overvoltage, Overcurrent, and overheating factors

The Solid State Relay may get damaged in case of a short circuit or over current. We suggest you install an air switch or fast fuse if you want to prevent this issue.

Many factors affect the load capacity of these units, such as the temperature of the unit itself and the ambient temperature. Therefore, make sure that during installation and usage there is enough heat emission. Make sure that to install a radiator if the rated current is higher than 10 amperes.

Considering the Load Types

During normal loads, these units can switch on and off, but during special load conditions, it is never the same for one shot timer relay. Therefore, you should go for the right unit based on your load type. It is important in case you don't want to cause damage to the unit.

Along with this, you may even want to consider the surge characteristics as well. There is a need for plenty of current and voltage margin.