12 Décembre 2017
What is overload relay?
Overload relay opens the circuit of a motor and disconnects the motor from its power source if it exceeds a predetermined level or value. It is also overload release as it acts as a protective device Thermal overload relays is similar to a circuit breaker only in terms of construction and use. As it will interrupt the power in the motor to protect the motor. These relays comes under the category of control gear and signaling devices and are available in reset type of both automatic and manual and are ideally used in AC compressor motor protection, motors in machines, cranes, and for pumps.
Selection of an over-load protection relay
AC or DC Relay must be accurately chosen so that it can improve the working life of the motor. Therefore, before selecting these accessories the need and purpose should be taken care. Some of the considerations while choosing an over-load relay include
Types of motor overload relay
Relays are categorized into different types depending upon their operating mechanism, application and parameters
Thermal overloads can be further divided into two types
Magnetic overload relays can be further divided into two types
Advantages:
If relay switch are not chosen wisely their contact life tends to reduce and they often get damaged in long run. So if you are looking for an over-load relay then eleczo.com is the best source to find it, as relay suppliers, Eleczo aims in delivering genuine and tested products to its buyers. So why wait….Grab the best deals today on Eleczo.com