What is the maximum number of contacts for a single relay?
How many have, the general logic control circuit has 1 to 4 pairs of contacts, the substation of the old relay protection relay with 24 pairs of contacts.
Up to 4 sets of contacts. Relay contact is in a normally open or normally closed state, that is, a simple understanding of the switch is normally open or often close the signal to open or disconnect the contact called the relay contacts.
The relay contact is the most important part of the relay. Their performance is greatly influenced by factors such as contact material, applied voltage and current values (especially the voltage and current waveforms for contact excitation and de-energization), the type of load, the operating frequency, the atmospheric environment , Contact configuration and beating. If any of these factors can not satisfy the predetermined value, problems such as metal product accumulation between contacts, contact welding, wear, or rapid increase in contact resistance may occur.
See what relay ah. I generally use the OMRON 12V / 24V have, generally on the 10 points, while 5 points, 3 points as a switch contact point is the power of another foot is not empty.
