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The Best Dc Solid State Relay of 2023 – Reviewed and Top Rated
2,819 Reviews Scanned
- FAST SWITCHING: Solid State Relay SSR-25DD is an electronic switching device that switches electrical loads on and off without mechanical contact. Solid state relay has no moving parts to wear out and is able to switch both “ON” and “OFF” much faster than mechanical relays. It also offers high isolation between the control circuit and the load circuit, enhancing safety and protecting control circuitry from high-voltage load circuits
- PERFECT FIT: Solid State Relay SSR SSR-25DD is perfect for a range of applications in household and industrial automation, including temperature control, heating and cooling systems, computer numerical control (CNC) machinery, remote control setups, and more. It fits SSR with the same specification: DC to DC Input 3-32VDC to Output 5-200V 25A, Insulation Resistance: 500M Ohm/500VDC, Ambient Temperature: ~30~+70℃, Off Leakage Current: ≤5mA
- HIGH-PERFORMANCE OPTOCOUPLER: SSR-25DD Solid State Relay is equipped with a heat-dissipating metal back plate and a copper terminal lug for superior conductivity. BlueStars ensures longevity with a high-quality semiconductor optocoupler, along with spark-proof, noiseless operation via chemical contact-free action and zero cross-trigger control. Especially, this part is suitable for corrosion, moisture, dust resistant and other harsh environments
- FAIRLY EASY INSTALLATION: Experience hassle-free installation with our user-friendly Solid State Relay SSR-25DD. Save time and effort without compromising on quality - our product is crafted to seamlessly integrate into your setup with minimal fuss
- 100% LIFETIME PROTECTION: Enjoy reliable performance with our lifetime protection, ensuring that your product will always be covered for any defects or issues that may arise.
- ♥【What You Get】Each package With 2 mini bag of thermal grease which apply on the back of the SSR to make the temperature dissipate faster.
- ♥ Product Name: solid state module relay SSR-25DD, 3-32VDC/5-220VDC ; Current & Frequency:25A,50/60Hz.
- ♥ Total size (approximate):58 x 45 x 32mm/2.3" x 1.8" x 1.26" (l*w*t); Net weight:116g; Material:metal, plastic, electronic parts.
- ♥ SSR Application: with a switch no spark, no noise,high switching speed,anti-corrosion,moisture-proof,anti-vibration,long life.high reliability,electromagnetic compatibility and other characteristics.
- ♥ Solid state relay ideal for automatic process control application, a must component for temperature controller and other machinery control system.
- Photocoupler isolation between input control signal and controlled power, isolation surge voltage up to 5000V.
- Input signal turn-on voltage DC 3 to 32V, turn-off voltage DC 0 to 0.8V. LED indication for relay turn-on.
- Output voltage range: DC 5 to 30V. Maximum on-state average current 10 Amp. Maximum on-state current 20 Amp (< 2 second). Non repetitive surge peak on-state current: 160 Amp (<400uS). Maximum on-state resistance 8 milliohms(0.008 ohm).
- This is a simple and practical solid state relay module, which is very convenient to use, for Arduino, Raspberry Pi, ESP32, PLC or other projects. The GPIO of these controllers are directly connected to this relay input to control the 5 to 30V high current DC power.
- Compact ABS plastic case and wires connect for easy mount. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw.
- Special attention: The current of this product is 10A for a long time.A large heat sink or fan need to be added.Model: SSR-40DD Solid State Relay 40A DC to DC
- Input voltage: 3-32V DC Output voltage: 5-60V DC
- Heat Sink Mounting Thread Diameter (Approx.) : 0.5cm / 0.19"
- Heat Sink Total Size (Approx.) : 8 x 4.9 x 4.9cm / 3.1" x 1.9" x 1.9" (L * W * T )
- Package content: 1 x SSR + 1 x heat sink
- Input:3-32Vdc,Output:5-60Vdc
- Without a heatsink installed, the maximum current is 1A.
- Long lifespan: uses optocoupler isolation and is contactless, so there's no mechanical lifespan limit.
- Fast response,high trigger,no noise.
- Commonly used for development boards like ESP32 and Raspberry Pi.
Last update on 2025-08-06 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: What is inside a solid state relay?
A: In human speak, that means a “light-separator.” That’s right – the switch inside a solid state relay is just a beam of light! Generally, there is a very low power LED that shines a beam of light on a photodiode, which nearly instantly allows power to be transmitted through it – or “switched” on.
Q: What is the use of DC relay?
A: It is mainly used to control a high powered circuit using a low power signal. Generally, a DC signal is used to control the circuit which is driven by high voltage like controlling AC home appliances with DC signals from microcontrollers. The following figure shows how a Relay looks internally and how it can be constructed,
Q: How does a solid state relay work?
A: A solid-state relay ( SSR) is an electronic switching device that switches on or off when a small external voltage is applied across its control terminals. SSRs consist of a sensor which responds to an appropriate input (control signal), a solid-state electronic switching device which switches power to the load circuitry,…
Q: Why use solid state what is a solid state relay?
A: Table of contents: Solid-state relay – principle of operation. A solid-state relay is a device that provides contact between low-voltage and high-voltage electrical circuits. Advantages and scope of use of solid-state relays. … Kinds of solid state relays. … Selection and purchase of solid-state relays. … Solid State Relay Connection Features. …
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