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Description
ZB4BS944Main 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 Key release Operator profile Red mushroom 40 mm, unmarked Type of keylock Ronis 455 Key withdrawal position Center Head type Standard
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 | Key release |
| Operator profile | Red mushroom √ò 40 mm, unmarked |
| Type of keylock | Ronis 455 |
| Key withdrawal position | Center |
| Head type | Standard |
Complementary
| CAD overall width | 40 mm |
| CAD overall height | 40 mm |
| CAD overall depth | 79 mm |
| Net weight | 0.098 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 IP67 IP69 IP69K |
| NEMA degree of protection | NEMA 13 NEMA 4X NEMA 4 NEMA 12 |
| IK degree of protection | IK03 conforming to IEC 50102 |
| Standards | CSA C22.2 No 14 EN/IEC 60204-1 EN/IEC 60947-1 GB 14048.5 EN/IEC 60947-5-1 EN/ISO 13850 EN/IEC 60947-5-5 JIS C8201-5-1 EN/IEC 60947-5-4 UL 508 IEC 60364-5-53 JIS C8201-1 |
| Product certifications | RINA GL BV CSA LROS (Lloyds register of shipping) 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
4.5 ★★★★★
Based on 194 reviews
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Product Reviews
★★★★★ 5
Love this!
Format: Kindle
So far I'm loving this series! The FMC is tough and sweet and I love her MMCs. Its a very interesting story so far. On to book 2!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 3
Alex and her monsters
Format: Kindle
A somewhat intriguing story that did drag a little despite giving us some world building. The explanations just took too long even if we don’t get the full picture yet. I will say the story does have some humor and is very hot. I may pick up the second book at some point.
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Reviewed in the United States on September 11, 2023
★★★★★ 5
Interesting Monster Academy
Format: Kindle
Alexandra is tired of being alone, using writing to escape from her reality. But when her monster protectors in her writing come to life, her life is going to become a little more exciting than she ever anticipated.
This was a fun take on an academy romance. We have two different realities, one for the real world and one for the supernatural world. I loved the Dark Imaginarium Academy and the intrigue it held throughout the story. The plot was fun and the characters were written beautifully. Alexandra, Elwin, Kylo and Lucien were great characters and have the best out of every relationship dynamic. My heart does belong to Lucien, because who doesn't love a murderous psycho willing to kill anyone who hurts you?
I wish there was a little more intrigue to the plot itself. The story was fun to read and well written, but it's still a straightforward Academy romance. I would've liked to see something that made the story really stand out more.
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Reviewed in the United States on March 21, 2022
★★★★★ 4
Great
Format: Kindle
What a great book. I loved the ending of the book. At first I wasnt too sure about it but now I want to keep reading it.
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Reviewed in the United States on June 27, 2025
★★★★★ 5
Intriguing
Format: Kindle
Very interesting world set up! I'm liking the characters more and more as we get to know them as well. At first I found it difficult to remember what powers each of the 3 monsters have, but the author does a great job of working it into the story to help the reader remember and eventually tell who is who much easier.
Seems like a great start to a series. I can't wait to see where everything is heading.
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Reviewed in the United States on March 26, 2024