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Description
ZB4BW0B65Main Range of product Harmony XB4 Product or component type Complete body contact assembly and light block Device short name ZB4 Fixing collar material Zamak Sale per indivisible quantity 1 Head type Standard Contacts type and composition 1 NO + 1 NC Contact operation Slow break Connections terminals Screw clamp terminals, <= 2 x 1. 5 mm with cable end conforming to EN 60947 1 Screw clamp terminals, >= 1 x 0. 22 mm without cable end conforming to EN
Main
| Range of product | Harmony XB4 |
| Product or component type | Complete body/contact assembly and light block |
| Device short name | ZB4 |
| Fixing collar material | Zamak |
| Sale per indivisible quantity | 1 |
| Head type | Standard |
| Contacts type and composition | 1 NO + 1 NC |
| Contact operation | Slow-break |
| Connections - terminals | Screw clamp terminals, <= 2 x 1.5 mm² with cable end conforming to EN 60947-1 Screw clamp terminals, >= 1 x 0.22 mm² without cable end conforming to EN 60947-1 |
| Light source | Protected LED |
| Bulb base | Integral LED |
| Light block supply | Direct |
| Light source colour | Blue |
| [Us] rated supply voltage | 24 V AC/DC at 50/60 Hz |
Complementary
| CAD overall width | 30 mm |
| CAD overall height | 47 mm |
| Terminals description ISO n°1 | (11-12)NC |
| Net weight | 0.074 kg |
| Contacts usage | Standard |
| Positive opening | With conforming to EN/IEC 60947-5-1 appendix K |
| Operating travel | 1.5 mm (NC changing electrical state) 2.6 mm (NO changing electrical state) 4.3 mm (total travel) |
| Operating force | 2 N NC changing electrical state 2.3 N NO changing electrical state |
| Operating torque | 0.05 N.m NO changing electrical state |
| Mechanical durability | 5000000 cycles |
| Tightening torque | 0.8…1.2 N.m conforming to EN 60947-1 |
| Shape of screw head | Cross compatible with Philips no 1 screwdriver Cross compatible with pozidriv No 1 screwdriver Slotted compatible with flat √ò 4 mm screwdriver Slotted compatible with flat √ò 5.5 mm screwdriver |
| Contacts material | Silver alloy (Ag/Ni) |
| Short-circuit protection | 10 A cartridge fuse type gG conforming to EN/IEC 60947-5-1 |
| [Ith] conventional free air thermal current | 10 A conforming to EN/IEC 60947-5-1 |
| [Ui] rated insulation voltage | 600 V (pollution degree 3) conforming to EN 60947-1 |
| [Uimp] rated impulse withstand voltage | 6 kV EN 60947-1 |
| [Ie] rated operational current | 3 A at 240 V, AC-15, A600 conforming to EN/IEC 60947-5-1 6 A at 120 V, AC-15, A600 conforming to EN/IEC 60947-5-1 0.1 A at 600 V, DC-13, Q600 conforming to EN/IEC 60947-5-1 0.27 A at 250 V, DC-13, Q600 conforming to EN/IEC 60947-5-1 0.55 A at 125 V, DC-13, Q600 conforming to EN/IEC 60947-5-1 1.2 A at 600 V, AC-15, A600 conforming to EN/IEC 60947-5-1 |
| Electrical durability | 1000000 cycles, AC-15, 2 A at 230 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to EN/IEC 60947-5-1 appendix C 1000000 cycles, AC-15, 3 A at 120 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to EN/IEC 60947-5-1 appendix C 1000000 cycles, AC-15, 4 A at 24 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to EN/IEC 60947-5-1 appendix C 1000000 cycles, DC-13, 0.2 A at 110 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to EN/IEC 60947-5-1 appendix C 1000000 cycles, DC-13, 0.5 A at 24 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to EN/IEC 60947-5-1 appendix C |
| Electrical reliability | Λ < 10exp(-6) at 5 V and 1 mA in clean environment conforming to EN/IEC 60947-5-4 Λ < 10exp(-8) at 17 V and 5 mA in clean environment conforming to EN/IEC 60947-5-4 |
| Signalling type | Steady |
| Supply voltage limits | 19.2…30 V DC 21.6…26.4 V AC |
| Current consumption | 18 mA |
| Service life | 100000 h at rated voltage and 25 °C |
| Surge withstand | 1 kV conforming to IEC 61000-4-5 |
| Device presentation | Basic sub-assemblies |
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 60536 |
| Standards | UL 508 EN/IEC 60947-5-5 EN/IEC 60947-1 EN/IEC 60947-5-4 CSA C22.2 No 14 EN/IEC 60947-5-1 JIS C8201-5-1 JIS C8201-1 |
| Product certifications | RINA CSA UL listed LROS (Lloyds register of shipping) GL BV DNV |
| 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 |
| Resistance to fast transients | 2 kV conforming to IEC 61000-4-4 |
| Resistance to electromagnetic fields | 10 V/m conforming to IEC 61000-4-3 |
| Resistance to electrostatic discharge | 6 kV on contact (on metal parts) conforming to IEC 61000-2-6 8 kV in free air (in insulating parts) conforming to IEC 61000-2-6 |
| Electromagnetic emission | Class B conforming to IEC 55011 |
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 |
| Mercury free | Yes |
| RoHS exemption information | Yes |
| China RoHS Regulation | China RoHS declaration |
| Environmental Disclosure | Product Environmental Profile |
| Circularity Profile | End of Life Information |
| WEEE | The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins |
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
4.6 ★★★★★
Based on 960 reviews
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Product Reviews
★★★★★ 5
My FAVORITE Bra!
Size: 44F, Color: Black
These are my FAVORITE bras!! They hold everything in and there is no spillage out of the cups! I own many of these and have yet to be disappointed. I like that they don't cost and arm and a leg either!
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Reviewed in the United States on April 27, 2026
★★★★★ 4
Decent low-profile bra, but with caveats for larger chests
First, I had to return the bra three times because the size charts on the manufacturer's website are laughably wrong. By measurement, it had me at a DD. Lo and behold, I was an H. So ignore those size charts, and go off the standard US ones for bras. The band sizes are also near the US standard, but about one standard deviation too small. I'm normally a 36, but I had to buy a 38 in this. The website had me at a 34DD, which was absurd. You should have seen the look on my face when it came and I knew instantly it wouldn't fit. The 38H did, though. I'm typically a 36-38 or H/I/J in most brands.
So the pros. This is a great bra if you want to get rid of lines. I have a lot of professional silk blouses, and I can't wear ANY lace underneath them or you can see it. This comes in a lot of neutral colors, too, which is great for those purposes. The shoulder straps are really chunky, which makes it hard to hide in tanks, but it's very comfortable in all other styles of tops. The back strap is quite firm for a bra in this price range, so that the majority of the support is from there, not the shoulder straps. The bra (once I got the right size) actually tacks in the middle, which is rare for me unless I spend over $50 on a bra. I'm also not getting unattractive areas of fat accumulation that happens when your bra doesn't fit and pushes breast tissue out of where it should be. This was important to me, because I want to eliminate lines, and nothing points out where your bra straps are like a small fat roll right under your bra band.
The cons don't outweigh the pros, but you should be aware of them. First, the cups are very full-coverage. Anything past a moderate scoop neck will show the bra. I prefer a little less coverage so I can wear mandarin collars. Second, the cups don't have any support outside of the band, shoulder straps, and underwire. If you want your chest to sit high and tight, you're going to have to spend more. It certainly uplifts more than going without a bra, but for larger chests, you're still going to droop a bit more than a bra with firmer cups. This isn't a problem for me with looser and more professional blouses, but I don't like how it makes me look a bit "sloppier" in tighter shirts.
For a bra that was $50+ dollars, the cons would make me not purchase it again. But I paid $26 for this, so the cons are quite reasonable for price point, given that I do have a large chest that makes bra shopping quite the chore. It fits the bill for the task of the type of shirts I needed it for. But if you're a full-chested person and want a bra that will work for nearly everything, you're going to need to look elsewhere and spend more.
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Reviewed in the United States on October 25, 2021
★★★★★ 5
Finally a bra that fits!
Size: 38G, Color: Black
This is my first time wearing this bra, and right away I can tell it’s the best fit I’ve ever had. I wear a 38G, and the support is incredible without feeling tight or uncomfortable. The band sits snug (on the first set of hooks—yes!) and doesn’t dig into my skin. The cups give full coverage without spillage, and the lift is exactly what I needed.
So far, I’m very happy with how it feels under clothes, and I actually feel supported and comfortable.
I will update this review after two weeks of wear to let you know how it holds up.
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Reviewed in the United States on July 16, 2025
★★★★★ 3
Not durable
I love the initial fit and feel of this bra. Its very comfortable and silky. I was disappointed to discover the poor design which allows the underwire to poke through much too quickly. It happened on both of my bras from this company. I bought 2 hoping the first was just defective but the second had the same issue in the same area.
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Reviewed in the United States on November 8, 2023
★★★★★ 5
Great coverage for a chesty gal with smaller band size
Size: 34F, Color: Gentle Rose
I don’t know why I can find bras that fit better on Amazon than in store, but this one is a good one. It fits well and is as comfy as you can expect from an underwire. It has zero lining and that can be an issue, so pay attention to that if it is important to you for the nip coverage!
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Reviewed in the United States on July 18, 2025