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Description
ZB4BG8Main Range of product Harmony XB4 Product or component type Head for key selector switch Device short name ZB4 Bezel material Chromium plated metal Mounting diameter 22 mm Head type Standard Sale per indivisible quantity 1 Shape of signaling unit head Round Return Right to centre Operator profile Black key switch Operator position information 3 positions + 45 Type of keylock Ronis 455 Key withdrawal position Center Complementary CAD overall width 29
Main
| Range of product | Harmony XB4 |
| Product or component type | Head for key selector switch |
| Device short name | ZB4 |
| Bezel material | Chromium plated metal |
| Mounting diameter | 22 mm |
| Head type | Standard |
| Sale per indivisible quantity | 1 |
| Shape of signaling unit head | Round |
| Return | Right to centre |
| Operator profile | Black key switch |
| Operator position information | 3 positions +/- 45° |
| Type of keylock | Ronis 455 |
| Key withdrawal position | Center |
Complementary
| CAD overall width | 29 mm |
| CAD overall height | 29 mm |
| CAD overall depth | 72 mm |
| Net weight | 0.098 kg |
| Resistance to high pressure washer | 7000000 Pa at 55 °C, distance : 0.1 m |
| Mechanical durability | 1000000 cycles |
| Electrical composition code | C3 for <6 contacts using single blocks in front mounting C4 for <6 contacts using single and double blocks in front mounting C5 for <5 contacts using single blocks in front mounting C6 for <5 contacts using single and double blocks in front mounting C7 for <4 contacts using single blocks in front mounting C8 for <4 contacts using single and double blocks in front mounting C11 for <3 contacts using single blocks in front mounting |
| Device presentation | Basic element |
Environment
| Protective treatment | TH |
| Ambient air temperature for storage | -40…70 °C |
| Ambient air temperature for operation | -40…70 °C |
| Overvoltage category | Class I conforming to IEC 60536 |
| IP degree of protection | IP66 conforming to IEC 60529 IP67 IP69 IP69K |
| NEMA degree of protection | NEMA 13 NEMA 4X |
| IK degree of protection | IK06 with keyhole cover ZBGP conforming to IEC 50102 |
| Standards | EN/IEC 60947-5-5 UL 508 EN/IEC 60947-5-1 EN/IEC 60947-5-4 GB 14048.5 CSA C22.2 No 14 EN/IEC 60947-1 |
| Product certifications | RINA BV CSA DNV GL LROS (Lloyds register of shipping) UL listed |
| Vibration resistance | 5 gn (f= 2…500 Hz) conforming to IEC 60068-2-6 |
| Shock resistance | 30 gn (duration = 18 ms) for half sine wave acceleration conforming to IEC 60068-2-27 50 gn (duration = 11 ms) for half sine wave acceleration conforming to IEC 60068-2-27 |
Offer Sustainability
| Sustainable offer status | Green Premium product |
| REACh Regulation | REACh Declaration |
| EU RoHS Directive | Pro-active compliance (Product out of EU RoHS legal scope) EU RoHS Declaration |
| Toxic heavy metal free | Yes |
| Mercury free | Yes |
| RoHS exemption information | Yes |
| China RoHS Regulation | China RoHS declaration |
| Environmental Disclosure | Product Environmental Profile |
| Circularity Profile | End of Life Information |
Contractual warranty
| Warranty | 18 months |
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
4.3 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Perfect for me and my kids
KOORUI 27 Inch Curved Monitor and I am extremely satisfied with its performance. This monitor is perfect for both gaming and desktop use, delivering an immersive and visually stunning experience.
First and foremost, the 27-inch curved display is a game-changer. The curved design enhances the viewing experience, making it feel more engaging and immersive. Whether I'm gaming or working on desktop tasks, the curved screen pulls me into the action and provides a wider field of view.
The FHD 1080P resolution ensures crisp and clear visuals, allowing me to enjoy games and media with stunning detail. The colors are vibrant and accurate, and the overall picture quality is impressive. I can easily spot even the smallest details in games, giving me a competitive edge.
With a 75Hz refresh rate, the monitor delivers smooth and fluid visuals, minimizing motion blur and ensuring an enjoyable gaming experience. Whether I'm playing fast-paced action games or watching videos, the smoothness of the display adds to the overall immersion.
The monitor offers multiple connectivity options, including HDMI and VGA, allowing for easy connection to various devices. I appreciate the flexibility this provides, as I can connect my gaming console, PC, or other devices without any hassle.
One feature that I particularly value is the tilt adjustability. The ability to tilt the monitor allows me to find the perfect viewing angle for maximum comfort, reducing strain on my neck and eyes during long gaming or work sessions.
Another important aspect of this monitor is the eye care technology. The 1800R curvature and eye care features help reduce eye strain and fatigue, even during extended usage. This is a crucial consideration for me, as I spend a significant amount of time in front of the screen.
The sleek black design of the monitor adds a touch of elegance to my setup. It blends seamlessly with my gaming or office environment and enhances the overall aesthetics.
In terms of value for money, the KOORUI 27 Inch Curved Monitor is an excellent choice. It offers a combination of immersive visuals, smooth performance, and eye care features at an affordable price point.
Overall, I highly recommend the KOORUI 27 Inch Curved Monitor for both gaming and desktop use. Its curved display, FHD resolution, smooth refresh rate, and eye care features make it a standout choice. Whether you're a gamer or someone who spends hours working on a desktop, this monitor will undoubtedly enhance your experience."
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Reviewed in the United States on July 18, 2024
★★★★★ 5
I like
Large, tilt. I like. Just does raise up. Goes good with my stand up desk.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Excent price / quality relation
I had some good expectations about this screen and they were accomplished. The quality is good, it has few modes in its configuration for eye saving or performance.
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Reviewed in the United States on June 3, 2024
★★★★★ 4
It's alright
Performs well on high graphics for gaming. My only complaint is that this has a lot of backlighting. The screen is very bright and not very saturated. I also don't like that you can't adjust the screen height. But other than that, a decent curved monitor.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Game changer! Literally
I use this monitor for work and I don’t need to turn my face to see the edge of the screen. Absolutely love it! Bright enough but not too much to bother my sight! Nice color, monitor not too heavy but still good quality. Lots of value in this purchase! Highly recommend to my colleagues and friends!
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Reviewed in the United States on May 27, 2025