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Description
ZB4BG2Main 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 Operator profile Black key switch Operator position information 2 positions 90 Type of keylock Ronis 455 Key withdrawal position Left Complementary CAD overall width 29 mm CAD overall height 29 mm
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 |
| Operator profile | Black key switch |
| Operator position information | 2 positions 90° |
| Type of keylock | Ronis 455 |
| Key withdrawal position | Left |
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 C15 for <1 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 60947-1 GB 14048.5 EN/IEC 60947-5-5 EN/IEC 60947-5-1 EN/IEC 60947-5-4 UL 508 CSA C22.2 No 14 |
| Product certifications | DNV GL LROS (Lloyds register of shipping) CSA BV UL listed RINA |
| 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
4.5 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 4
It's easy to take one pill a day.
Size: 180 Count (Pack of 1)
I sometimes get cramps in my calves while sleeping, so I eat before bed. Personally, I think it's effective. I am satisfied with the product and delivery.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
★★★★★ 5
It works!!
Size: 180 Count (Pack of 1)
I wake up feeling refreshed..and ready for the day.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Encapsulated Mag Citrate
Size: 180 Count (Pack of 1)
Exactly what my body needs. Encapsulated magnesium.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
best sleep aid I have found
Item Package Quantity: 1, Style: 240 Count (Pack of 1)
this is the best sleep aid I have found. This dissolves under the tongue, goes right into your system and I take two of them every night. They do not work like a sleeping pill and knock you out immediately--- they are natural and take longer plus I feel you need time to get them in your system and feel a difference. Therefore I did not expect immediate results. I have had insomnia for years so I took them for a couple of months when I started noticing the most effect. Now when I take them and let them dissolve under my tongue I know that in about 30 minutes or less I will start to feel drowsy and will naturally go to sleep. Over time I have felt my sleep has deepened and now I rarely awaken during the night. By the way, in the beginning of my search to solve my insomnia problem, I tried taking the melatonin pills that you just swallow but did not get the same results that I have gotten with these that I put under my tongue. Excellent company and excellent product.
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Reviewed in the United States on April 29, 2021
★★★★★ 5
WE enjoy falling asleep with these wonderful Melatonin sublingual tablets! Enjoy your Zzzzzzz!
Item Package Quantity: 1, Style: 120 Lozenges Tablets, Item Package Quantity: 1, Style: 120 Lozenges Tablets
Melatonin is produced in humans by the pineal gland. It's a favorite of travelers and helps support restful sleep.
We take 1 lozenge at bedtime and let it dissolve. These are great tasting Orange Flavored Lozenges. We only use them at bedtime. And they're just for adults.
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Reviewed in the United States on July 12, 2025