Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
ZB4BL434Main Range of product Harmony XB4 Product or component type Head for non illuminated push button Device short name ZB4 Bezel material Chromium plated metal Mounting diameter 22 mm Sale per indivisible quantity 1 Head type Standard Shape of signaling unit head Round Type of operator Spring return Operator profile Red projecting, STOP (white) Complementary CAD overall width 29 mm CAD overall height 29 mm CAD overall depth 33 mm Mechanical durability
Main
| Range of product | Harmony XB4 |
| Product or component type | Head for non-illuminated push-button |
| Device short name | ZB4 |
| Bezel material | Chromium plated metal |
| Mounting diameter | 22 mm |
| Sale per indivisible quantity | 1 |
| Head type | Standard |
| Shape of signaling unit head | Round |
| Type of operator | Spring return |
| Operator profile | Red projecting, STOP (white) |
Complementary
| CAD overall width | 29 mm |
| CAD overall height | 29 mm |
| CAD overall depth | 33 mm |
| Mechanical durability | 10000000 cycles |
| Electrical composition code | C1 for <9 contacts using single blocks in front mounting C2 for <9 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 conforming to IEC 50102 |
| Standards | CSA C22.2 No 14 EN/IEC 60947-1 EN/IEC 60947-5-4 EN/IEC 60947-5-5 JIS C8201-5-1 UL 508 EN/IEC 60947-5-1 JIS C8201-1 |
| Product certifications | GL LROS (Lloyds register of shipping) DNV RINA CSA UL listed BV |
| 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
4.7 ★★★★★
Based on 1192 reviews
Sort
Product Reviews
★★★★★ 5
Comfortable chair
Color: Black, Color: Black
I wanted an all black out chair to match my cabinets and this chair fits my needs. It was easy to install took me about 20mins or so.
Quality is great, the base is made out of metal hence very solid, it came with the polyurethane wheels, rolling on the hardwood floor is very smooth. Seat and arm rest have thick foam paddings makes it very comfortable to seat on and lean back. Adjustable recline tension and height adjustment. Great chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
★★★★★ 5
GOOD
Color: Black
The chair was more comfortable than I expected for the price. The back support feels good and the seat does not feel hard after working for several hours. I liked that the wheels roll smoothly and the assembly was pretty simple. The design also makes the office look more modern. So far it feels stable and durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 4
Back is a little low
Color: Black, Color: Black
Comfort is good went together with no problems
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Sitting on a very comfortable leather chair
Color: Black, Color: Black
I have been using this chair for a few days. First of all, the installation is very simple and convenient. You can learn it just by looking at the drawings. It takes about 20 minutes to install. The chair is very comfortable to sit on. Its support and comfort are beyond expectations. It can relieve the fatigue of the waist and you won't feel very tired when sitting. The leather material is also good. It can be rotated, moved up and down, and can be moved. The armrests can also be moved up and down. This price is worth it. Overall, I'm very satisfied and comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 5
Very comfortable chair!
Color: Black
This office chair is a great addition to my bedroom. It offers really nice comfort because of its thick and cushioned back which helps make long hours at a desk much more enjoyable. The adjustable height is really nice as it makes this chair extremely versatile. The armrests are sturdy and positioned well for typing or resting your arms. They also move back if you don’t like them. The assembly was straightforward and didn’t take long as the instructions were clear and easy to follow. The wheels roll really nice and don’t get stuck. This chair is really comfortable and nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
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