Finder is a company manufacturing electronic components in Shenzhen. It has been 12 years since its establishment. It is a well-known brand company. Its products include:Finder intermediate relayFinder power relay, etc. today, finder company will explain to you what is intermediate relay.
1、 What is an intermediate relay?
Intermediate relay is a relay that converts input signals into one or more output signals. Its input signal is the power on and power off of the coil. Its output signal is the action of the contact. Contacts in different action states transmit signals to multiple components or circuits respectively
2、 Structure and working principle of finder intermediate relay
The basic structure and working principle of the intermediate relay are exactly the same as those of the contactor (when the electromagnetic coil is energized, the current flows through the coil to generate a magnetic field, so that the static iron core can generate sufficient suction, overcome the reaction force between the reaction spring and the contact pressure spring, pull the dynamic iron core, and drive the transmission rod to change the state of the dynamic contact and the static contact, so as to realize AC.) Hieve the effect of normally closed contact opening and normally open contact closing). Therefore, it is called contactor relay. Unlike the contactor, the intermediate relay has many contact pairs, and there is no difference between the main contact and the auxiliary contact. The allowable current of each pair of contacts is the same, and its rated current is about 5A.
3、 Use of finder intermediate relay
Intermediate relays have two main uses:
1. When the contact capacity of low-voltage or current relay is insufficient, it can be controlled with the help of intermediate relay, which is used as actuator. At this time, the intermediate relay can be regarded as the main amplifier;
2. When the number of contacts of other relays or contactors is insufficient, the intermediate relay can be used to switch multiple circuits.