Visually, everything is of very high quality. Haven't tried it in use yet. Delivery was fast.
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SSR Solid State Relay DC Controlled 10A 25A 40A 220V with Heat Sink
Price range: $6.51 through $8.98
Pay now, in 4 interest-free payments of $1.63, or over 3β6 months
4 interest-free payments of $1.63
DC controlled solid state relay with rated currents of 10A, 25A, and 40A at 220V.
- Includes plastic dust cover and heat sink options
- Sealed semiconductor switch design for reliability
- Suitable for general purpose use excluding mixed solar loads
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Estimated Delivery Time3β7 business days
Reliable DC Controlled Switching
This solid state relay employs a semiconductor switch controlled by DC input signals. It features a sealed plastic dust cover protecting the components, ensuring durability and stable performance in low power applications.
Designed to handle load currents of 10A, 25A, and 40A at 220V, it provides robust operation for general-purpose electrical control needs.
Usage Recommendations and Precautions
While suitable for many applications, this SSR is not recommended for use with solar equipment due to mixed load characteristics. Users attempting solar loads should select relays with ten times the current rating.
To maintain optimal performance and longevity, installation of a heat sink is advised to dissipate heat generated during operation. For currents exceeding 60A, additional cooling such as a fan is required.
Testing and Functional Notes
The SSR's semiconductor switch does not provide a measurable continuity reading on a multimeter, typically showing a high impedance state. To verify proper switching, testing with a resistive load such as an incandescent lamp is effective.
Load Compatibility and Control Modes
Different control modes exist for AC and DC input signals, with this model operating under DC control. Load types have varying recommended loading ratios: 70% for resistive, 20% for inductive, and 10% for capacitive loads.
Key specifications
- Model Number: SSR-10DD, SSR-25DD, SSR-40DD
- Control Type: DC Controlled
- Load Voltage: 220V
- Load Current Options: 10A, 25A, 40A
- Protection Feature: Sealed plastic dust cover
- Application Use: General Purpose Low Power
- Origin: Mainland China
- Compliance Voltage: Below 50Vac or 75Vdc control voltage
What's in the box
- SSR Solid State Relay unit
- Plastic dust cover
- Heat sink (optional)
Product FAQ
Frequently asked questions
01 What is the control voltage for this SSR?
This SSR is DC controlled, designed to work with DC control signals.
02 What are the current ratings available for this SSR?
The SSR is available in 10A, 25A, and 40A rated load currents.
03 Can I use this SSR with solar equipment?
Solar equipment is a mixed load and this SSR is not recommended for solar applications. If attempted, a relay with 10 times the current rating is advised.
04 Is a heat sink required for operating this SSR?
Yes, a heat sink is recommended to extend the relay's life. For currents over 60A, a cooling fan is also suggested.
05 Does the SSR have a physical contact switch?
No, it uses a semiconductor switch with no physical contacts, resulting in high reliability and sealed construction.
06 How can I test the SSR functionality?
Testing requires a load; using an incandescent lamp as a dummy load is an effective way to test switching and continuity.
07 What kind of protection does the SSR offer?
The SSR is sealed to protect the semiconductor components and ensure durability.
08 What types of loads are supported by this SSR?
It is suitable for general purpose low power resistive, inductive, and capacitive loads.
09 What voltage range does the SSR operate under?
The SSR is designed for low voltage operations, below 50Vac or 75Vdc control voltages.
10 Is the plastic dust cover included with the SSR?
Yes, the relay is supplied with a plastic dust cover to protect components from contaminants.
Discussion
4.9
Based on 9 reviews
OK
It fit perfectly where I planned.
Ordered and arrived quickly and well packaged. would order again
Product shipped as described and shown in the image. I liked it a lot. Now I just need to test the product.
