Perhaps you may have the following questions when purchasing the qwifm Intelligent Solid State Relay: I have been using conventional/ordinary relays before, can I use an intelligent solid state relay? Will it be impossible to install? Will it affect the normal operation of the device?

Of Course！ Because：

The installation method and location of the intelligent solid state relay are the same as those of the conventional relay. Besides, They have the same function and are both used in the electric heating industry. Therefore, they can be directly replaced.

Why choose the qwifm intelligent solid state relay instead of conventional relays?

The intelligent solid state relay features miniaturization, intelligence, strong heat dissipation and anti-interference capabilities, as well as a long service life. Its performance far exceeds that of conventional relays.

The Relevant Details are as follows：

1. The intelligent solid state relay is smaller in sizeand has a more elegant and beautiful appearance.

1. Not only the intelligent solid state relay can automatically sense the external environment and the working status of the device, but also it has the function of automatically detecting faults, whichcan effectively protect the relay itself and the operating device from being damaged by thermal breakdown.

【When the control load changes，for instance, if the load causes leakage, resulting in an increase in working current, a local short circuit phenomenon, or a change in the heat dissipation conditions, which will cause the temperature of the relay to rise rapidly, then leading to overheating. Therefore, 80% of the failures of conventional solid state relays are caused by overheating damage. But qwifm intelligent solid state relay features an internal intelligent micro-power control chip for temperature control, which can automatically reduce the conduction current to the power device (i.e., the relay itself). If the temperature of the internal intelligent micro-power control chip keeps rising, the main current of the entire working system will be automatically shut off, thereby achieving the function of automatic intelligent fault detection. This means that an additional protective measure has been added for control load, and it can also ensure that the fault does not expand and is resolved until it is eliminated. This is a technology in the field of international power control IC. And the technology is of particular significance for industries such as rubber and plastic processing, as well as those in the fields of chemical engineering, printing, dyeing, military production, and some industries with explosion-proof requirements.】

• The intelligent solid state relay has an automatic thermal balance function.

【With this automatic thermal balance function, the intelligent solid state relay can reasonably design a heat sink suitable for its working environment, which significantly increases its service life. Therefore, using the qwifm intelligent solid state relay will be more energy-efficient and cost-effective than adopting conventional power control schemes.】

1. The working principleof intelligent solid state relay is more scientific compared to that of conventional solid state relays, and they have stronger resistance to current surges.

【Qwifm intelligent solid state relay adopts an advanced soft-start working mode. Enable the relay to have an extremely strong ability to withstand current surges. Especially in some complex load conditions, it can still operate stably and reliably, with excellent resistance to capacitance and load.】

1. Qwifm intelligent solid state relay is equipped with dual LED indicators, which can display two states: “working”and “fault”.

【In addition to a working indicator light, there is also a working (fault) power indicator light. Through this working (fault) power indicator light, we can clearly see the working status of this relay and the related load. Moreover, the signal of this (fault) power indicator light can also be a set of signals that output the working status of intelligent solid state relays and the loads they drive to the control center, in order to meet the needs of industrial automation production. The example of dual-LED operation is as follows:】

Initial/Standby: Only the red light is on (there is electricity at the load end, but no control signal).

Normal Operation: The green light is on and the red light is off. 

Normal shutdown: The green light goes out and the red light comes on. 

Failure State: Both of red light and green light are on simultaneously, or neither of the two lights is on.

2. The qwifmintelligent solid state relay has a function of wide voltage input control voltage, ranging from 2.5 to 48 VDC, and can be well compatible with integrated circuits such as computers and single-chip microcomputers.

• The qwifmintelligent solid state relay has excellent electromagnetic interference resistance (EMC) performance.

【Multiple tests indicate: The electromagnetic waves generated by intelligent solid state relays are less than 50% of those produced by conventional solid state relays, and they far outperform conventional electromagnetic relays. This is of great significance for certain industrial and military equipment, also can significantly reduces the requirements for equipment such as those controlled by computers and PLCs.】

• The qwifmintelligent solid state relay adopts DBC packaging technology and an aluminum alloy casing. This not only provides it with 20% more heat capacity than conventional encapsulated relays, but also significantly optimizes its heat dissipation performance, thereby indirectly increasing the power density of the relay.
• 【The intelligent solid state relay is currently the relay product on the market with the largest heat dissipation area.】

If you still have any other questions about qwifm intelligent solid state relays after reading the above content, you can contact us through the following contact ways:

Whatsapp/Wechat：

86 18917361687； 86 13918378571

E-mail：

qwifm@qwifm.com；marketing@qwifm.com