Precautions for the use of solid state relays
The input pins of multiple SSRs can be connected in series or in parallel, but if each SSR must meet the high level, the zero-crossing type trigger current is greater than 5mA,
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Introduction to the advantages and disadvantages of solid state relays
Solid state relays are non-contact electronic switches with isolation function, and there are no mechanical contact parts in the switch.
What are the functions of AC contactors?
AC contactor function introduction:The AC contactor is an intermediate control element, and its advantage is that it can frequently turn on and off the line, and control a large current with a small curren...
What is the difference between a contactor and a relay
Nowadays, there are many electrical accessories on the market, each of which has a certain range of use and functions, and contactors and relays are the two types that are easy to confuse. So, what is the ...
What is a isolation switch?
The main function of the general isolation switch is to disconnect small currents and change the operation mode. I don't know if you have found it or not. One of them is to disconnect the small current, wh...
What is an arc fault protective circuit breaker (AFDD)?
Electrical fire is the "first killer" that threatens people's life and property safety. According to statistics, nearly half of the fires in my country are caused by improper use of electricity. With
Structure and principle of DC isolation switch
A DC isolating switch is a device for preventing the short circuit between AC and DC of the DC isolating switch.
What is a contactor
Introduction to ContactorsContactors are divided into alternating current contactors (voltage AC) and direct current contactors (voltage DC), which are used in electric power, power distribution and p
Relay
Instructions for use of relaysRated working voltage: refers to the voltage required by the coil when the relay works normally, that is, the control voltage of the control circuit. Depending on the mod
Fuse
Fuse refers to an electrical appliance that fuses the melt with the heat generated by itself and disconnects the circuit when the current exceeds the specified value. The fuse is a current protector m
What does an AC contactor consist of?
What does an AC contactor consist of? I think everyone already has the answer. Our article here is specially prepared for novices. Please read it patiently.
breaker
Circuit breaker refers to a switching device that can close, carry and break current under normal loop conditions, and can close, carry and break current under abnormal loop conditions within a specif