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Description
B&B DINRAIL RS422/485 SURGE PRO.The B&B DINRAIL RS422 485 SURGE PRO (Model HESP4DR) is a rugged, DIN rail mounted protection device designed to shield industrial RS 422 485 communication lines from lightning, surges, and voltage disturbances. Built for harsh environments and continuous operation, this surge protector ensures data integrity and minimizes downtime in automation, process control, and remote monitoring systems. With five protected RS 422 485 channels and a precise
The B&B DINRAIL RS422/485 SURGE PRO (Model HESP4DR) is a rugged, DIN rail mounted protection device designed to shield industrial RS-422/485 communication lines from lightning, surges, and voltage disturbances. Built for harsh environments and continuous operation, this surge protector ensures data integrity and minimizes downtime in automation, process control, and remote monitoring systems. With five protected RS-422/485 channels and a precise clamping voltage of approximately 6.8V, the HESP4DR provides reliable, multi-line protection in a compact, easy-to-integrate package.
- Five-channel RS-422/485 protection on terminal blocks: The HESP4DR supports up to five RS-422/485 signals, delivering targeted transient suppression exactly where data lines run between controllers, sensors, and I/O devices. This multi-line protection helps maintain reliable communication across complex industrial networks.
- Low clamping voltage for data integrity: With a clamping voltage of approximately 6.8 volts, this surge protector clamps transients quickly to safeguard expensive devices and delicate interface electronics from voltage spikes that could corrupt data or damage circuitry.
- Three stages of protection for robust reliability: The HESP4DR employs a three-stage protection approach to absorb and redirect surges, part of a proven strategy to minimize failure risk and extend the life of RS-422/485 networks in demanding environments.
- DIN rail mounted for rapid deployment: Designed for standard industrial enclosures, this device snaps onto a DIN rail, enabling fast installation, neat cable management, and scalable protection for growing automation systems without interrupting existing wiring.
- Industry-ready performance and uptime: Built to withstand industrial temperatures, vibration, and electrical noise, the HESP4DR preserves data integrity, reduces nuisance outages, and helps keep critical processes running smoothly in manufacturing, packaging, and utility monitoring applications.
Technical Details of B&B DINRAIL RS422/485 SURGE PRO
- Model: HESP4DR
- Signal protection: Five RS-422/485 channels presented on terminal blocks
- Clamping voltage: Approximately 6.8 V
- Protection levels: Three stages of protection
- Mounting: DIN rail compatible for quick integration into control panels and cabinets
How to Install B&B DINRAIL RS422/485 SURGE PRO
- Prepare the enclosure: Ensure power is de-energized and the installation area is clean and compliant with industry safety standards. Verify that there is available DIN rail space near the RS-422/485 devices you want to protect.
- Mount on the DIN rail: Clip the surge protector securely onto the DIN rail, ensuring a firm seat and proper alignment with the rail. A secure mount prevents movement and vibration-related wear in industrial environments.
- Connect the protected lines: Attach the five RS-422/485 signal lines to the corresponding terminal blocks on the unit. Use shielded twisted-pair cables where possible and maintain consistent pairing to minimize EMI effects.
- Grounding and bonding: If required by your installation, bond the surge protector to earth ground per local regulations. Correct grounding helps maximize transient suppression performance and protects adjacent equipment.
- Power-up and verify: After all connections are secure, re-energize the system and verify that RS-422/485 communication resumes normally. Perform a simple data integrity check across the protected channels to confirm successful operation.
Frequently asked questions
- What does the B&B DINRAIL RS422/485 SURGE PRO protect? It protects RS-422/485 communication lines from lightning, power surges, and voltage disturbances typically encountered in industrial environments, helping to preserve data integrity and device longevity.
- How many channels are protected? Five RS-422/485 signals are protected on terminal blocks, enabling multi-line protection for common automation architectures.
- What is the clamping voltage? The clamping voltage is approximately 6.8 volts, designed to limit transient voltages to a safe level for connected equipment.
- Is this device suitable for DIN rail installations? Yes, it is specifically designed for DIN rail mounting, which makes it ideal for panel-mounted automation setups and retrofit projects.
- In what environments can I install it? It is intended for industrial environments where RS-422/485 communication is critical and exposed to surges, transients, and electrical noise. It supports reliable operation in cabinets, control rooms, and field enclosures.
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
4.8 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Strong legs, somewhat industrial but trendy also
Size: side table leg
Good legs, some what utilitarian or industrial, they are strong as they are made out of pipe, and assembly is fairly easy once you get the idea of how it goes together. They are roughly 1.5 feet across maybe a bit less adjustable height on each leg, if you have wood floors you may want to put a pad under each leg as they are full metal pipes. Pretty interesting idea and does not cost much.
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Pretty good, take your time and install it well
Size: side table leg
Materials are pretty solid, but once assembled it’s not as sturdy as you would think it should be since the material itself was solid, i say give them a chance, everything out there that’s similar is way over priced
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Heavy duty legs for table.
Size: side table leg
Perfect legs for a table I am having made. I have an cottonwood slice. It's heavy and needed something substantial.
These are perfect.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Robust pipe & fittings with a beautiful, smooth black finish
Size: side table leg
This set of pipe & fittings for use as low table legs is heavy duty and aesthetically pleasing. Especially when the pieces are handled, the tactile sensation is much nicer than with plumbing steel pipe because this product is beautifully finished smooth. The black pipes are quite smooth as well as the fittings.
The pieces are all also pretty robust, though the wall thicknesses are less than in pipe for pressurized water systems. Of course that makes sense as this product does not need to hold fluid pressure.
In my view they got the heaviness factor of this product just right; it's not as heavy or robust as black pipe used in natural gas supplies, but still robust and pretty heavy. Assembled, this product is absolutely stiff and unyielding for a solid table that could hold a man's weight easily.
The feet utilize a brilliant scheme so that each foot can be independently adjusted for an uneven floor. Thus a level table on an uneven floor is easily accomplished. The feet simply extend the effective leg length by screwing counter-clockwise. To prevent any shifting at the threads adding some pipe compound or teflon tape may be advised. Even masking or duct tape might work as the idea is to just fill any gaps where male threads meet female threads.
The four flanges at the tops of the legs provide a wide, solid surface for attaching the table top, with either hidden screws underneath or you could through-bolt a glass table top (provided you have the skill to drill glass!). I think this product would look great with a glass top.
Assembly is quick and easy. The hardest part is drilling holes underneath the table top to accept screws. No pipe wrenches are needed as the pieces screw together by hand to an adequate tightness. If any doubt whether they are tightened enough have a strong person with grippy gloves finish. The "X" in the center attaches to the legs with a very clever machine screw system tightened with the included hex wrench. This is presumably because if tightened simply by screwing the fittings, the point of snugness would not likely be where the "T" fittings are exactly vertical. The maker has solved this problem so that you are assured that all legs will be in the perfect vertical position once everything is tight. The setup is also nice and rigid once tightened. This is a huge benefit of steel pipe projects; they are really solid.
The black finish is clearly very durable, like a powder coat. It appears that it will provide excellent protection against rust. Coverage is complete; I found no dings or scratches anywhere on any piece.
Overall this is a very well-designed product for function and aesthetics. Perfect for a beautifully renovated warehouse condo where an industrial vibe is desired in a rock-solid table that won't shift around. The smoothness of the pipe is top notch. I've used lots of pipe in projects, some of it actual water pipe and some decorative pipe such as this. I've never seen better quality decorative pipe as this maker put in the effort to finish it beautifully smooth. At currently $34.99 I find the price quite reasonable too.
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Reviewed in the United States on April 18, 2026
★★★★★ 3
the height is only 16"
Size: coffee table leg
The height is only 16". From the description it appears to be 24" wide and 24" high.
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Reviewed in the United States on April 2, 2026