Dongguan Yinyin Hardware Products Co., Ltd. specializes in producing silver contacts, composite contacts, silver contacts, contacts, rivet contacts, rivet contacts, shaped contacts, silver contacts, solder contacts, environmental contacts, switch contacts Points, contact switches, rivet contacts, riveting contacts.
The term relay contact is rarely heard by ordinary people. It is not the manufacturer or the buyer who knows the word; most people are familiar with the word relay. The relay and relay contacts differ only by two words but are two completely different products. They have different functions. Although they are different products but they have similar codes and connected relationships, let us explain the relay contacts. Definition and use as well as detailed grading, contact marks, and specification loads.
Definition: Slope electrical contacts allow the relay to be free of contact gap adjustment. Can compensate for contact point contact caused by electrical contacts,
The relay contacts are the most important part of the relay. Their performance is greatly affected by factors such as the material of the contacts, the applied voltage and current values ​​(especially the voltage and current waveforms that cause the contacts to excite and de-energize), the type of load, the operating frequency, and the atmospheric environment. , contact configuration and jitter. If any of these factors does not satisfy the predetermined value, problems such as metal build-up between contacts, contact soldering, wear, or rapid increase in contact resistance may occur.
Contact introduction
The so-called contact configuration refers to the contact mechanism. For example: b contact (Break contact), a contact (Make contact), c contact (Transfer contact) and so on.
Number of contact stages
The so-called contact level is the number of contact circuits.
Contact mark
Each contact institution is represented in the following manner:
a contact (normally open) b contact (normally closed) c contact (converted) MBB contact
Relative to the early domestic saying: H (moving, that is, normally open contact), D (breaking, that is, normally closed contact), Z (conversion contact)
Specification load
The standard value that determines the performance of the switch (contact) is expressed as a combination of contact voltage and current.
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Judging effect
There are generally two types of contacts, control contacts and signal contacts. The control contact is powered by 220V/380V. Generally, a smaller relay or other switch is connected in this circuit. That is to say, when the switch or relay is closed, the coil of the intermediate relay is supplied with power and the relay is closed. The signal contact acts as a feedback. It provides two states, closed and open, so that other control circuits can determine if the contactor is properly engaged.
Leading automatic, remote control, monitoring
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