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Description
SSR-40AA AC to AC Solid State Relay - 2 PackSSR 40AA Solid State Relay Key Features Model: SSR 40AA Type: Single Phase AC to AC Solid State Relay Load Current: 40A Input Voltage Range: 70 280V AC Output Voltage Range: 24 480V AC Switching Method: Zero Crossing Features a built in LED status indicator Designed with a metal base plate for thermal management Replaces Cross Reference Part Numbers SSR 40AA SSR 40AA Compatibility & Fitment General purpose component for applications requiring AC load
SSR-40AA Solid State Relay
Key Features
- Model: SSR-40AA
- Type: Single Phase AC-to-AC Solid State Relay
- Load Current: 40A
- Input Voltage Range: 70-280V AC
- Output Voltage Range: 24-480V AC
- Switching Method: Zero-Crossing
- Features a built-in LED status indicator
- Designed with a metal base plate for thermal management
Replaces / Cross-Reference Part Numbers
- SSR-40AA
- SSR 40AA
Compatibility & Fitment
- General-purpose component for applications requiring AC load switching.
- Commonly used in temperature control systems (PID), industrial automation, heating elements, lighting controls, and other machinery.
- Designed for use with resistive loads.
- Ensure your application's voltage and current requirements fall within this relay's specified operating range.
When to Replace
- The connected load does not turn on when control voltage is applied.
- The connected load remains on permanently, even with no control voltage.
- Operation is intermittent or unreliable.
- Visible signs of overheating, charring, or physical damage to the relay casing.
Installation Tips
- A heat sink is required for loads exceeding 10A to prevent overheating.
- Apply a thin layer of thermal compound between the relay's metal base and the heat sink for optimal heat transfer.
- Ensure all terminal connections are secure to prevent arcing.
- Use appropriately sized wiring to handle the intended load current.
- Verify correct wiring for input (control) and output (load) terminals before applying power.
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 25 reviews
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Product Reviews
★★★★★ 5
Built for heavy chewers and actually holds up
Size: Medium, Style: Fishbone/Wishbone
This chew toy is a total win for heavy chewers and has held up really well compared to so many others we’ve tried. It keeps dogs busy for long stretches and they stay genuinely interested in it instead of destroying it in minutes. The shape makes it easy for them to grip and chew comfortably, which adds to how much they use it. The durability is the real standout here, making it one of those rare toys that actually earns a repurchase. The material feels sturdy, it’s easy to clean, and there’s no noticeable odor, which is always a plus.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Definitely recommend
Size: Large, Style: 4 Pack
My dogs absolutely love these! I bought them at a great price! They have lasted my dogs over a year! I have a full pitbull, pit/lab, pit/boxer, and a pit/mastiff. So needless to say they pass the power jaw test. They look just like the pictures and they are pretty light weight!
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Benebone is fantastic for heavy chewers and busy, adolescent pups!
Size: Medium, Style: 4 Pack
This little multi-pack is cost-effective in a few ways, super durable and effective, and I'll definitely be purchasing the multi-pack again. We discovered these about a year ago and have been buying them ever since. I'm just now getting around to reviewing them because they're that good, plus I love that the company is family-owned.
Four "bones" lasts a little over a month for a power chewer, which is a bargain! You get 4 medium size "bones" for the retail price of 2. These smell delicious to dogs but humans can detect the odor, which is so nice. They are incredibly durable, but somehow also not too hard for a power chewer, and they keep pup from chewing on books and other items that we don't wanted chewed to bits. Heavy chewers (and their people!) love these and the variety of shapes means we can swap them out in rotation and keep pup's interest going for a few weeks.
Wait until your pup has all of their adult teeth, as they are a little too hard for teething. And for super power chewers, watch out for the fish shaped chew, as this one seems to allow larger pieces to be chewed off the fish head "corners" more easily due to the relative thinness of the shape at that point when compared to the other 3 shapes.
Keep an eye on how much your power chewer is taking off of these "bones" (little tiny pieces do get chewed off) and toss them (or recycle with Benebone!) when your dog is able to chew off more than a crumb size piece.
Hooray for Benebone! Hooray for family-owned businesses! We'll be back for more!
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Reviewed in the United States on April 7, 2025
★★★★★ 4
Seems Very Durable So Far
Size: Small, Style: 4 Pack
My dogs are really enjoying these chew toys! These keep them busy for hours!! So far they seem very durable and my little dogs can really chew and destroy so I’m happy about these so far! They rarely each chew a toy at the same time, but choose to take turns instead. But now they each have a chew toy and they are happy campers!!
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Reviewed in the United States on January 1, 2026
★★★★★ 5
Lasted 7 MONTHS - perfect pack of bones!
Size: Medium, Style: 4 Pack
Lasted us 7 months! Our Belgian mal chews on these non-stop and treats them like her high value treats. We just re-ordered the 7 pack!
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Reviewed in the United States on April 11, 2026