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Description
SSR-40DA DC to AC Solid State Relay - 3 PackSSR 40DA Solid State Relay Key Features Model: SSR 40DA Type: Single phase solid state relay Control Input Voltage: 3 32V DC Load Output Voltage: 24 380V AC Maximum Load Current: 40A Switching Method: Electronic, for fast response and long service life Construction: Aluminum heat dissipating base plate with screw terminals Replaces Cross Reference Part Numbers SSR 40DA Replaces solid state relays with matching electrical specifications (3 32V DC
SSR-40DA Solid State Relay
Key Features
- Model: SSR-40DA
- Type: Single-phase solid state relay
- Control Input Voltage: 3-32V DC
- Load Output Voltage: 24-380V AC
- Maximum Load Current: 40A
- Switching Method: Electronic, for fast response and long service life
- Construction: Aluminum heat-dissipating base plate with screw terminals
Replaces / Cross-Reference Part Numbers
- SSR-40DA
- Replaces solid state relays with matching electrical specifications (3-32V DC control, 24-380V AC load, up to 40A)
Compatibility & Fitment
- Suitable for various AC load switching applications including PID temperature controllers, industrial automation, HVAC systems, and motor controls.
- Compatible with microcontrollers and PLCs that provide a 3-32V DC output signal.
- A heat sink is required for loads exceeding 10A to prevent thermal damage and ensure rated performance.
When to Replace
- Relay fails to activate the load when a control signal is present.
- Relay remains stuck in the "ON" position, keeping the load powered without a control signal.
- Unit overheats under normal operating conditions (with an appropriate heat sink).
- Visible damage, such as a cracked housing or corroded terminals.
Installation Tips
- Disconnect all power sources before installation or servicing.
- Mount the relay on a correctly sized heat sink, especially when switching loads greater than 10A.
- Apply a thin layer of thermal paste between the relay's metal base and the heat sink for optimal heat transfer.
- Connect control (input) and load (output) wiring to the correct terminals as marked on the device.
- Ensure all wire connections are secure to prevent arcing and overheating.
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 18 reviews
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Product Reviews
★★★★★ 5
Girl’s best friend
Style: I-Squeak Cone, Style: I-Squeak Cone
I bought one of these 2 years ago for my super aggressive chewer. She is a lab-pit mix and she destroys most everything within minutes. This ice cream is one of the few toys that can issue a challenge to her. It took her 2 years to break the first one I bought her. I just ordered her another and I am so thankful the quality and durability is the same! The size may seem a little small, but my girl is 80 pounds and doesn’t have any issues with it. She even sleeps with it like it’s a baby, she has since she was a puppy. Highly recommend this toy!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Love this
Style: I-Squeak Cone
Bully approved. Cute as it looks, got it to go with his donut 🍩. For the durability thus far I’d say it worth the money. Has some bite marks in it but he hasn’t been able to take chunks or and pieces off for that matter. Durable harder rubber material but still soft enough to toss it and it bounce. Good size for med/lg dog.
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Reviewed in the United States on May 28, 2025
★★★★★ 5
Crazy, Cool, Cone
Style: I-Squeak Cone
My Airedale Terrier puppy loves her Bark box I-Squeak Cone Dog Toy. I keep triping over the Bark box I-Squeak Cone Dog Toy in the correrdor. I move the Bark box I-Squeak Cone Dog Toy it out of the way and find myself triping over it a few hours later. Glad she is enjoyoing her Barkbox I-Squeak Cone Dog Toy,
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Reviewed in the United States on April 25, 2026
★★★★★ 4
Heavy
Style: Go Mango
Too heavy for a puppy
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Reviewed in the United States on March 4, 2026
★★★★★ 5
Strong chew toy favorite!!!
Style: I-Squeak Cone
We’ve bought 3 for our Pit Mix and each time she gets a new one, it’s her favorite toy. Not indestructible but holds up well to super chewers.
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Reviewed in the United States on June 8, 2026