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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
4.5 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Where has this been all our pup's life!?!
WOW, I never even knew something like this existed! As a very loving Mini-Aussi mama I have just been holding those super stinky bully sticks for our pup every time she wants to chew on them for the last 4 years! And I'll admit sometimes if I don't want to hold them that means she doesn't get that kind of treat. And once they get too short to hold, probably about 5-6" I have to throw them out because it just doesn't work well for either of us (or for my fingers which my sweet girl would never mean to bite but sometimes are way to close to the gnawing drooling action for either of our comfort!) This solution is ideal!! The shark twist locks in the stump (or any length bully stick) super tight so that she won't get it to the last tiny end bit to choke on it, but I can still untwist it with just a bit of muscle to get out the last bit once she is done - and she can't. The rubber is very strong and she hasn't damaged it at all even with her strong chewing, clawing and pulling. It's strong/tough enough that it's not a rubber she seems to wants to chew and she stays focused on the bully stick. And I've paid close attention to take it away once she has it down to the point of not having any more bully stick exposed to chew, which does result in some pouting, but it also makes the next time this toy come out all the more fun.
She's got great leverage to hold on to the bully stick herself using this holder where she had no leverage before (or used her claw into my hand or my arm as leverage) and it allows her to sit and chew on it next to us calmly, without us being actively involved with holding it for her. We still watch her closely while using it for her own safety, like many things-I don't think I would leave her alone with it if I left the house, but that is probably just me being over-protective.
For me this is the food toy find of the year!!! She absolutely loves it and is excited EVERY time I get it out for her to play with. Great product - thank you so much for making something that is made so well and is so study and robust!! Well worth the investment!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 7, 2025
★★★★★ 5
Very durable
This bully stick holder is a game-changer! It keeps my dog safe while enjoying their treat, and I don't have to worry about them swallowing the end piece. Durable, easy to clean, and worth every penny!
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Good for independent play
Works well to firmly hold treats in place while your dog chews it/keeps them from choking when it gets too short to hold with their paws. Our dog is 9lbs so his strength may not fully test the durability of the holder...his friend who is about double his size was able to pull out a bully stick from the holder.
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Reviewed in the United States on November 11, 2025
★★★★★ 5
Supervise. Can chew off pieces.
Flavor Name: Chicken & Original, Size: Small
Soft nylabone. Tough yet chewy. My dog loves them.
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Reviewed in the United States on February 6, 2026
★★★★★ 5
My dogs love
Flavor Name: Chicken & Original, Size: X-Small, Flavor Name: Chicken & Original, Size: X-Small
They love the blue one for some reason, but its a great size. They are durable for heavy chewing. They can play with them for a long time and dont get bored
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
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