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"Built-in TVS protection, no need for varistor"
Means that the device or circuit has integrated TVS (Transient Voltage Suppression) protection, hence eliminating the necessity for an external varistor. TVS is a component used to protect electronic devices from transient voltage disturbances such as lightning strikes, electrostatic discharge, etc. Varistors (MOV) are commonly used overvoltage protection devices in circuits, and the design with built-in TVS protection indicates that the device already incorporates protection against transient voltages, eliminating the need for additional varistors to provide the same protection
Solid-state relays offer a multitude of benefits, some of which include:
1.Excellent insulation and high temperature resistance due to being controlled by semiconductor devices instead of mechanical contacts.
2.Longer lifespan due to avoidance of wear and tear caused by contact during operation.
3.More stable output of current and voltage which can avoid abnormal states caused by excessive fluctuations.
4.Faster response speed and precision in circuit control due to the use of semiconductor devices.
5.Energy efficiency in controlling current during operation which improves utilization efficiency and reduces energy consumption.
6.A small size due to the small size of the semiconductor device for flexible and convenient usage.
In summary, solid-state relays are widely used in automation control and high-voltage power switches due to their fast response, long lifespan, energy efficiency, and compact size.
Three advantages
Advantage 1: Comes with radiator
1. The solid-state relay comes with a heat sink, which can avoid the installation of an additional heat sink and save equipment space.
2. Improve adaptability: The radiator can improve the adaptability of the solid state relay, make it suitable for a wider temperature range, and enhance the anti-interference and anti-shock characteristics of the solid state relay.
Advantage 2: The width is only 0.96in
1. Space saving: Due to the small size of the narrow solid state relay, the space occupied during installation is also small, and a more compact and concise assembly scheme can be realized. In some occasions, especially when electrical equipment is assembled in a limited space, the use of narrow solid state relays will be an ideal choice for saving space and facilitating wiring.
2. Simple installation: The narrow solid state relay is not only convenient for quick installation, but also can be easily targeted for installation, and can more accurately control the installation position and connection method of the relay.
3. Flexible operation: The narrow solid state relay can operate in various environments, and the control and detection response of the circuit is also fast and accurate.
Advantage 3: rail installation
1. Space saving: DIN-rail solid state relays can be directly fixed to the DIN rail, so it can save installation space and make the wiring tidy and beautiful
2. Quick installation: Excellent rail-type solid state relays can be quickly plugged and installed without the need for time-consuming steps such as cable connection and screw fixing. This reduces repair and replacement time, increases productivity and reduces downtime.
Eric
2025-08-28 14:20:51
Use it to turn on/off a auxiliary battery charger on my solar system that I trigger with a Victron battery monitor.
hector
2025-06-11 14:43:11
Bueno
Keven
2025-05-07 12:47:33
As described. They running pretty hot under only half of their max amperage rating. I will watch them close. 107 DEG. CELCIUS mesured on the heat sink
Laurent
2025-02-12 14:06:44
I use this relay to operate a sump pump in a shallow well. I needed to go solid state because I have 20+ cut ins and cut outs per hour, which translates to 175K a year: I needed reliability.The on time is less than 10 seconds, and my pump is drawing the maximum rating for this relay (as per their instructions on derating the relay's 40A rating because of inductive loads (see instructions in the product illustrations).The heat sink of the relay never even gets warm, which is perfect for me. If it's not getting hot, then it will let a long time.The instructions are not very clear regarding their recommendation for a varistor for when using inductive loads (like I am) had no information. I perusing varistors come in different ratings, so it would be nicer to have a guideline to assist us in protecting this device.The price was excellent, and it went up s free bucks since I purchased it just before Christmas (it's January 30th now). I want to purchase a backup one: maybe I can get a coupon code from them. ðŸ˜I have no other product to compare it with, but I've been using this one for about a month which means turning on and off about 15,000 times already without a single hitch. If they had clearer instructions and more information on the varistors, I'd give them 5 stars. Consider these 4 stars a 4.5 star rating.
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