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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
ZB4BS834Main Range of product Harmony XB4 Product or component type Head for emergency switching off push button Device short name ZB4 Bezel material Chromium plated metal Mounting diameter 22 mm Sale per indivisible quantity 1 Shape of signaling unit head Round Type of operator Trigger action and mechanical latching Reset Turn to release Operator profile Red mushroom 30 mm, unmarked Head type Standard Complementary CAD overall width 30 mm CAD overall height
Main
| Range of product | Harmony XB4 |
| Product or component type | Head for emergency switching off push-button |
| Device short name | ZB4 |
| Bezel material | Chromium plated metal |
| Mounting diameter | 22 mm |
| Sale per indivisible quantity | 1 |
| Shape of signaling unit head | Round |
| Type of operator | Trigger action and mechanical latching |
| Reset | Turn to release |
| Operator profile | Red mushroom √ò 30 mm, unmarked |
| Head type | Standard |
Complementary
| CAD overall width | 30 mm |
| CAD overall height | 30 mm |
| CAD overall depth | 57 mm |
| Net weight | 0.068 kg |
| Resistance to high pressure washer | 7000000 Pa at 55 °C, distance : 0.1 m |
| Mechanical durability | 300000 cycles |
| Electrical composition code | 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 C15 for <1 contacts using single blocks in front mounting C10 for <4 contacts using single and double 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 |
| Electrical shock protection class | Class I conforming to IEC 61140 |
| IP degree of protection | IP66 conforming to IEC 60529 IP69 IP69K |
| NEMA degree of protection | NEMA 13 NEMA 4X NEMA 4 NEMA 12 |
| IK degree of protection | IK06 conforming to IEC 50102 |
| Standards | EN/IEC 60204-1 JIS C8201-5-1 GB 14048.5 EN/IEC 60947-1 EN/IEC 60947-5-4 CSA C22.2 No 14 EN/IEC 60947-5-1 EN/ISO 13850 IEC 60364-5-53 UL 508 EN/IEC 60947-5-5 JIS C8201-1 |
| Product certifications | RINA LROS (Lloyds register of shipping) GL CSA BV DNV 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 |
| REACh free of SVHC | Yes |
| 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
4.1 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
work well
Color: Blossom
these work really well on your screens on your phone and laptop. I keep one of them in my car for the computer screen. there are 4 of them so you can leave them in multiple places and always have one handy. the designs are fun. they clean well with a little pressure. they do not scratch the surfaces. they are nice and soft and small enough to keep in your purse or wherever.
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Reviewed in the United States on April 30, 2025
★★★★★ 5
These are handy and effective!
Color: Blossom
These work really well for cleaning phone/tablet screens, the display screen in my car, and any other screen surface. The material is soft and doesn’t scratch, doesn’t require any liquid cleaning product, and does a great job of removing smudges and dust. I like how portable they are-I can keep one in my car, one in my purse, one in my work bag, and one in my nightstand. I’ve reused them multiple times and they have stood up well to multiple uses with no apparent loss of cleaning ability.
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Reviewed in the United States on August 13, 2025
★★★★★ 4
Work great, inexpensive, but…pic just a tad different
Color: Glitter Pink/Black
These work well, were worth the price, and made good stocking stuffers. I took off 1 star, because they appeared somewhat different from the photo. The photo made the glitter ones looked like they had stars as part of the pattern (like a night sky or outer space), but it seems like that effect was added to the photo to enhance the glittery appearance. They are, in fact, very sparkly and not very celestial, so they were just a tad more ‘girly’ than I was expecting. Nothing wrong with glitter and glam—just different from what I thought I was getting. On a positive note, the glitter is sealed in and doesn’t shed, so you won’t be spreading sparkly escapees for the rest of eternity. (I guess I would give 4.5 stars if I could)
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Reviewed in the United States on December 22, 2025
★★★★★ 5
Where have these been all my life?
Color: Glitter Pink/Black, Color: Glitter Pink/Black
I don’t understand why anyone would give this set of little miracles a bad review. I have wasted way too UHC money on too many products that never get my phone completely street and smudge free, especially around the edges where the phone and the case meet. That’s the area I’ve wasted the most time trying to get clean, to no avail. I have spent way too much time wiping the edges and corners over and over, but they never are completely streak-free. I saw these and figured I’d try them; it’d not like I wouldn’t be able to return them if they ended up being a just as useless as everything else I’ve tried, and even if I did forget to send them back, I wasn’t losing a ton of money. The first thing I did when they arrived I pulled one of them out, shoved two fingers under the elastic band, a major selling point for me because it keeps it secure without feeling claustrophobic., and started swirling all around the edges of my phone. And within seconds my phone screen looked brand new. The oily grime stuck in the corners and all along the edges was gone within seconds. Without any cleaning solution too, which I love that it’s an eco-friendly solution to keeping all that grossness off of my phone and tablet screens. I was in the middle of making cupcakes and had the bright idea of smearing a bit of butter on the screen of my tablet to see what happens. The results speak for themselves. And there’s no gross oily residue left on the pad I used to clean my tablet either when I was finished. I’m sure there’s an easy way to clean them…I’ll look into that when the need arises. The only issue I have is that I can’t buy them in an extra large size for cleaning tvs. The small ones will work perfectly, but an extra large one would get rid of every streak, smudge, fingerprint and lint within a few seconds. And you get it clean without any cleaning spray. You don’t even need water. Just open it up and use. I’d buy one to keep behind every tv in my house in a large size!
They are the perfect size to keep in your purse or your pocket. I bought the glittery ones; my ADHD brain is immediately drawn to anything that sparkles. And getting four for the price is beyond a great deal. I highly recommend these little wonders if you are like me and hate seeing your grandchildren’s fingerprints smeared all over your tablets screen when they hand it back to you. Or if you reach the same level of frustration I’ve reached whenever I’ve tried to get every bit of oily grossness off of my phones screen. These are going to make great white elephant and last minute Christmas gifts and stocking stuffers. They arrived a day earlier than I expected too. Get these. You won’t regret it. Until you try them and you regret that you can’t get an extra large one for your televisions too!
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Reviewed in the United States on August 8, 2025
★★★★★ 5
That it does what it says.
Love these they work do well on. My ipad, bought it 3 times as gifts for my friends.
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Reviewed in the United States on May 6, 2026
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