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Description
LUCB1XBLMain Range TeSys Product name TeSys U Device short name LUCB Product or component type Advanced control unit Product specific application Basic protection and advanced functions, communication Product compatibility LULC07 LUFV2 ASILUFC5 LUFN.. LUFDA01 ASILUFC51 LUFW10 LUFDA10 LUFC00 LULC033 LULC15 LULC08 LUFDH11 LULC09 LULC031 Utilisation category AC 43 AC 44 AC 41 Motor power kW 0. 25 kW at 400 440 V AC 50 60 Hz Thermal protection adjustment range 0.
Main
| Range | TeSys |
| Product name | TeSys U |
| Device short name | LUCB |
| Product or component type | Advanced control unit |
| Product specific application | Basic protection and advanced functions, communication |
| Product compatibility | LULC07 LUFV2 ASILUFC5 LUFN.. LUFDA01 ASILUFC51 LUFW10 LUFDA10 LUFC00 LULC033 LULC15 LULC08 LUFDH11 LULC09 LULC031 |
| Utilisation category | AC-43 AC-44 AC-41 |
| Motor power kW | 0.25 kW at 400...440 V AC 50/60 Hz |
| Thermal protection adjustment range | 0.35…1.4 A |
| [Uc] control circuit voltage | 24 V DC |
| Thermal overload class | Class 10 - frequency limit: 40…60 Hz - temperature compensation: -25…70 °C conforming to IEC 60947-6-2 Class 10 - frequency limit: 40…60 Hz - temperature compensation: -25…70 °C conforming to UL 508 |
Complementary
| Main function available | Earth fault protection Protection against phase failure and phase imbalance Protection against overload and short-circuit Manual reset |
| Mounting mode | Plug-in |
| Mounting location | Front side |
| Control circuit voltage limits | 20...27 V for DC circuit 24 V in operation |
| Typical current consumption | 130 mA at 24 V DC I maximum while closing with LUB12 220 mA at 24 V DC I maximum while closing with LUB32 60 mA at 24 V DC I rms sealed with LUB12 80 mA at 24 V DC I rms sealed with LUB32 |
| Operating time | 35 ms opening with LUB12 for control circuit 35 ms opening with LUB32 for control circuit 70 ms closing with LUB12 for control circuit 70 ms closing with LUB32 for control circuit |
| Load type | 3-phase motor - cooling: self-cooled |
| Tripping threshold | 14.2 x Ir +/- 20 % |
| [Ui] rated insulation voltage | 600 V conforming to UL 508 690 V conforming to IEC 60947-1 600 V conforming to CSA C22.2 No 14 |
| [Uimp] rated impulse withstand voltage | 6 kV IEC 60947-6-2 |
| Safe separation of circuit | 400 V SELV between the control and auxiliary circuits conforming to IEC 60947-1 400 V SELV between the control or auxiliary circuit and the main circuit conforming to IEC 60947-1 |
Environment
| Heat dissipation | 2 W for control circuit with LUB12 3 W for control circuit with LUB32 |
| Immunity to microbreaks | 3 ms |
| Immunity to voltage dips | 70 % / 500 ms conforming to IEC 61000-4-11 |
| Standards | UL 508 type E, with phase barrier EN 60947-6-2 IEC 60947-6-2 CSA C22.2 No 14 type E |
| Product certifications | ASEFA UL CCC ABS GOST LROS (Lloyds register of shipping) BV GL ATEX CSA DNV |
| IP degree of protection | IP20 front panel and wired terminals conforming to IEC 60947-1 IP20 other faces conforming to IEC 60947-1 IP40 front panel outside connection zone conforming to IEC 60947-1 |
| Protective treatment | TH conforming to IEC 60068 |
| Ambient air temperature for operation | -25…70 °C |
| Ambient air temperature for storage | -40…85 °C |
| Operating altitude | 2000 m |
| Fire resistance | 960 °C parts supporting live components conforming to IEC 60695-2-12 650 °C conforming to IEC 60695-2-12 |
| Shock resistance | 10 gn power poles open conforming to IEC 60068-2-27 15 gn power poles closed conforming to IEC 60068-2-27 |
| Vibration resistance | 2 gn, 5…300 Hz, power poles open conforming to IEC 60068-2-6 4 gn, 5…300 Hz, power poles closed conforming to IEC 60068-2-6 |
| Resistance to electrostatic discharge | 8 kV level 3 in open air conforming to IEC 61000-4-2 8 kV level 4 on contact conforming to IEC 61000-4-2 |
| Resistance to radiated fields | 10 V/m 3 conforming to IEC 61000-4-3 |
| Resistance to fast transients | 2 kV class 3 serial link conforming to IEC 61000-4-4 4 kV class 4 all circuits except for serial link conforming to IEC 61000-4-4 |
| Immunity to radioelectric fields | 10 V conforming to IEC 61000-4-6 |
Offer Sustainability
| Sustainable offer status | Green Premium product |
| REACh Regulation | REACh Declaration |
| EU RoHS Directive | Compliant 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.
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Exchange/Return Notes
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4.3 ★★★★★
Based on 520 reviews
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Product Reviews
★★★★★ 4
Sports Romance at its best!
Format: Kindle
You guys! The way I cheered Iris on throughout this book! When Roman and Iris met will forever be something I laugh about. Absolutely I recommend this book to you! There is plenty of spice too. Not too much, but just enough. We see betrayal, heartbreak, anger, love, pride, self preservation and so much more in this book. Lauren Rowe has very quickly become a top favorite romance author for me. IYKYK! The way she sucks you in and makes you feel like you’re right there within the story, it’s phenomenal.
🏈 Sports Romance
👨🏻 Single Dad
🤝 Age Gap
🏘️ Paradise to Small Town
🛏️ One Bed
💸 Billionaire Romance
The audiobook was done right! Narrators Samantha Brentmoor and Aiden Snow were fantastic! I’m not sure a better pairing could have been picked for this book.
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Reviewed in the United States on January 30, 2026
★★★★★ 3
Chasing the Ring
Format: Paperback
Chasing the Ring by Lauren Rowe delivers a fun, trope‑heavy sports romance with a jilted bride and NFL quarterback in paradise. While the chemistry between Iris and Roman is charming and the humor lightens the story, the plot feels predictable and the emotional beats don’t land as strongly as expected. A decent, easy read, but nothing that stands out in the crowded contemporary romance field.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
A great start to a new series!
Format: Kindle
“What happens in Kauai stays in Kauai”
Iris’ wedding didn’t go as planned when she found out about her fiancé’s lying and cheating ways. She goes to their honeymoon alone where she discovers a handsome stranger in her bungalow, turns out the place was double booked. There was instant attraction between Iris and Roman and after one amazing night together they decided to spend the week with a no strings fling.
As the days go by, it’s starting to feel more and less like a fling. But they’ve both been withholding information from each other to protect their identities and once the secrets come out, they have to figure out if the time they’ve spent together is worth the risk.
I love Iris! I think she’s so relatable. So proud of her for standing up for herself when she found out about her fiancé and for doing what she did when she found out about the truth about Roman. She’s the prefect preschool teacher, sweet, patient and kind. She deserves all the swoon and spice after what she’s been through and Roman definitely delivered.
Roman being in the public eye all the time never knows if someone is being truthful just to get close to him so he definitely embraced the fact that Iris didn’t know who he was. He was able to just be himself and show her his real self. And this man knows how to bring the swoon and he for sure delivered in the bedroom!
Such a great start to the series! This is the Lauren Rowe’s trad debut and she definitely delivered!!! With the Super Bowl coming up soon, this is a must read to get you in the mood!
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Reviewed in the United States on January 29, 2026
★★★★★ 4
Excellent Rom-Com
Format: Kindle
Starting with an iconic, unhinged confrontation with a serial cheater! Quickly moving onto two awesome meet cutes. (i guess one of them is a pee-cute)
Iris had a reaction I fully stand behind. I do hate the she went viral for it, but that comes back around to be almost empowering!
I love an unrecognized athlete - secret identity style trope and this one was done well. Giving Iris time to heal up and bask in the attention of a man who sees her as everything she is.
Roman and his family have a great relationship and the way they all came for Iris was perfect.
Magic Blinders really took me! I truly love the concept, how it helped Roman, and how I can see it really helping children and people like me with adhd!
Lauren stories have an interesting structure I have not read anywhere else. They keep me on my toes, laughing til I cry and really just enjoying the stories.
Thanks Lauren and Netgalley.
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Football & Romance
Format: Kindle, Format: Kindle
This was such a fun read and also my very first football romance. I was pulled right into the story from the beginning when our bride to be FMC gets shown a secret phone the fiancé was hiding by his own sister! You can bet I was sat after that. I love me an FMC that stands up for herself and promptly serves him up the best revenge in front of the whole church and then takes that honeymoon trip as her own personal vacation.
Enter or MMC Roman who is also on vacation getting a surprise when Iris busts in on him in the shower. I couldn't have laughed harder at the whole situation. Things heat up very quickly between our MCs that will leave you fanning yourself and absolutely swooning. Although Roman starts things out with hiding who he really is from Iris you can't help falling for his charm and sweetness. Also, on a personal note he was a Michigan Wolverine?! Yeah, that's a win in my book. Go Blue!
This book is perfect for those who love a good sports romance especially football. It will also have you smiling like a loon, belly laughing, and kicking your feet. I read the audiobook as well and it made the whole story even greater. Highly recommend.
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Reviewed in the United States on January 28, 2026