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Description
SSR-25AA AC to AC Solid State Relay - 2 PackSSR 25AA Solid State Relay Key Features Model: SSR 25AA Type: Single Phase Solid State Relay (AC to AC) Control Input Voltage: 80 250V AC Load Output Voltage: 24 380V AC Maximum Load Current: 25A Switching Method: Electronic, non mechanical for high speed operation Construction: Features an integrated aluminum heat dissipating base plate Replaces Cross Reference Part Numbers SSR 40AA RM1A23A25 RA2425D D2425 10 RN1A23D25 240A25 SSR 25AA H S2225X 25A H3
SSR-25AA Solid State Relay
Key Features
- Model: SSR-25AA
- Type: Single Phase Solid State Relay (AC to AC)
- Control Input Voltage: 80-250V AC
- Load Output Voltage: 24-380V AC
- Maximum Load Current: 25A
- Switching Method: Electronic, non-mechanical for high-speed operation
- Construction: Features an integrated aluminum heat-dissipating base plate
Replaces / Cross-Reference Part Numbers
- SSR-40AA
- RM1A23A25
- RA2425D
- D2425-10
- RN1A23D25
- 240A25
- SSR-25AA-H
- S2225X
- 25A-H3-380VAC
- RJ1A48D25
Compatibility & Fitment
A general-purpose component for switching AC electrical loads. Suitable for applications within its specified voltage and amperage ratings, including:
- Industrial automation and process control
- Programmable Logic Controller (PLC) interface
- Heating element and motor control
- Lighting systems
When to Replace
- Relay fails to activate the load circuit when control voltage is applied.
- Relay remains in the "on" state, continuously powering the load circuit regardless of control voltage.
- Intermittent or unreliable switching performance.
- Visible signs of damage or overheating on the relay housing or terminals.
Installation Tips
- Disconnect all power sources before installation or servicing.
- A heat sink is required for reliable operation with loads exceeding 10A to prevent thermal failure.
- Apply a thin layer of thermal compound between the relay's metal base and the heat sink surface.
- Ensure all wire connections to the screw terminals are secure to prevent poor contact and overheating.
- Verify that your application's control and load voltages are within the specified ranges for this relay.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1718 reviews
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Product Reviews
★★★★★ 5
AMAZING - LOVE THESE!
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
I've been using these pillow cases for more than 6 months and LOVE them. They are well made, no wrinkling, fraying or wearing out, even with a weekly washing. I love the zippers on them, my pillows fits perfectly in the case and don't constantly escape from the case overnight. They definitely perform as described: they keep me cool at night and don't smell and actually don't make a mess of my hair. I bought an extra one and put it on a pillow I keep close to my body which helps me from overheating during the night. They are a great value for the price, I wish I could get top sheets in the same style as these and I'd be in heaven!
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Reviewed in the United States on March 23, 2026
★★★★★ 3
Cool Pillowcases
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
These pillow cases are silky soft and cool to the touch. They don’t stay as cool as I would like, however, so I find myself moving around on the pillow to find a cool spot or flipping the pillow over. I have washed them several times and the coolness seems to be diminishing. Still, it’s better than a regular cotton pillow case. The zipper is needed and helps keep the material on the pillow.
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Reviewed in the United States on August 20, 2025
★★★★★ 5
By far the best cooling pillow case I’ve bought highly recommend
Color: Blue, Size: Standard, Set name: Silky
Highly recommend best cooling pillow case I’ve bought very soft and comfortable seems to be made from good material as well
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Actually cooling and comfortable.
Color: Royal Blue, Size: King
Incredible cases. Soft, super comfortable and actually cooling as claimed. Highly recommended. Love these!
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Cool
Color: Pink, Size: Standard
Cooling pillowcases work well, don’t wake up sweaty anymore. Very happy with them. Love the material, comfort and softness!
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Reviewed in the United States on June 7, 2026