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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 |
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4.7 ★★★★★
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★★★★★ 4
Christians should learn how to communicate their convictions
INTRODUCTION: KOUKL AND TACTICS
Tactics is a resource for Christians who are looking to hone their apologetic skills and seeking to grow in their opportunities to evangelize more effectively. Gregory Koukl, who teaches at Biola University, is validated in the area of apologetics by many years of experience in defending the faith but also in the theological whit involved in evangelizing. Koukl is the founder of a website called Stand To Reason, which is one of the most viewed websites on apologetics. For years, Koukl has sought to help individual Christians defend their faith and share their convictions. Using tactics, Koukl attempts to challenge Christians to embody his Ambassador Model – thinking logically, loving graciously, and persuading passionately.
SUMMARY
The book is very easy to read. It is dividend into two parts, the first revealing a game plan for defending the faith. In the first part, Koukl is concerned with helping his readers grasp the concept of maneuvering effortlessly through conversations about religion. Many Christians feel awkward and uncertain when navigating through conversations about their convictions, and Koukl does an exceptional job of providing an infrastructure for the believer to be relieved of these tensions.
PART 1: COLUMBO TACTIC EXPLAINED
The main thrust of Koukl’s tactic is what he calls “Columbo”. The key to the Columbo tactic is to “go on the offensive in an inoffensive way by using carefully selected questions to productively advance the conversation” (47). The advantages of this tactic are numerous, including: the ability to start conversations, invite others in, remain neutral by asking questions, buy more time to think, and remain in control of the conversation.
Koukl’s purpose in employing this tactic is to gather information. By asking “what do you mean by that?” you force somebody to think critically of their answers and their underlying convictions. Another revealing feature of the Columbo tactic is the ability to cause others to defend their beliefs. By asking “How did you come to that conclusion?” we are forcing the other person to explain their process of reasoning and how such derived conclusions were attained.
The final purpose of the Columbo tactic is to lead an individual to what we want to accomplish. Do we want to inform, persuade or challenge them? Asking leading questions will help to steer the conversation, however, the one asking the questions must have some prior knowledge. Koukl encourages his readers by reminding them that this tactic must be honed over time. Pointing out the errors of our opponent in a gracious way will eventually help us determine the basis of their conclusions, and furthermore, we can lead them to think anew upon their beliefs by asking “Have you considered…?”
PERFECTING COLUMBO
Perfecting the Columbo tactic takes time. Those who use it should be aware of efforts from opponents’ attempts to derail them. Christians who use the tactic should always refine by rethinking their questions, reworking their own conclusions, and considering more leading questions. Christians should also be aware of assertions made by opponents. For the sake of control and clarity, Christians may refuse to answer their opponents’ leading questions. Koukl reminds his readers that it will take time to develop strong questions and convictions, but over time, the power of Columbo is unimaginable. It is like saying to somebody, “You’re naked” (102).
PART 2: COLUMBO TACTIC IN ACTION
In the second part of the book, Koukl unpacks Columbo and exposes the different opposing arguments. This part of the book is philosophical but simple enough for lay Christians to be able to grasp the concepts.
The examples that he gives in subsequent chapters include Formal Suicide (statements that violate the law of non-contradiction), Practical Suicide (statements that are not contradictory but are self-defeating), Sibling Rivalry and Infanticide (when there are pairs of logically inconsistent objections), Taking the Roof Off (reduction ad absurdum, or a claim that leads to counterintuitive or absurd results), Steamroller (how to handle situations in which people are emotional, overpowering, or hardened), The Rhodes Scholar (defending against academic claims that object to our views), Just the Facts Ma’am (discovering when people just simply have their facts wrong). Koukl ends the book with a chapter on more helpful tips and principles for evangelistic conversations.
STRENGTHS AND WEAKNESS
There are several particular strengths in the book. Besides being a very simple writer, Koukl is also personable. At least from reading the book, one can tell how much time he spends with others. Koukl gives several anecdotes about his encounters. One interesting encounter took place when Koukl met a witch at a checkout line. On this occasion, Koukl tried to help the woman see that her beliefs were inconsistent with her convictions. In another encounter, Koukl describes a waitress who was “Sheepish in Seattle". Despite the funny subheading, the encounter instructed and helped readers learn how to ask pointed questions.
EVANGELISM
Another element of Tactics that proves helpful is Koukl’s method of evangelism. Many evangelistic programs can be either too programmatic or too simplistic.
Tactics runs between these two extremes by offering an alternative. Koukl teaches his readers how to converse with nonbelievers and believers about their convictions and beliefs in an intelligible way. “Columbo” is a method that Koukl prescribes to help people gain a handle on conversations and increase their ability to reason well.
This method helps people formulate good questions, gather information, and challenge the beliefs of others in a gracious and loving way. Koukl is mainly concerned with truth and helping others see the truth. His method is geared towards Christians who are serious about their faith. They'll confidently share there faith in a checkout out line or at the park.
SIMPLIFYING PHILOSOPHICAL CONCEPTS
Another strength is Koukls ability to successfully reduce philosophical concepts to intelligible ideas. For example, Koukl simplifies the reductio ad absurdrum argument for the reader by describing it thusly, “Taking the Roof Off,” or “to reduce a point to its absurd conclusion or consequence” (143). Then he lists several examples. An example that is very practical is the issue of same-sex marriage. Someone might say, “Same sex marriage should be instituted by the government because once upon a time, the government was wrong about interracial marriages, so it must be wrong about same-sex marriages.” Koukl might respond, “Well, the government also wanted to institute slavery, once upon a time, but slavery doesn’t exist today, so you must be wrong.” And with that, he shows the opponent the absurdity of their claim.
Koukl offers helpful summarizing sections at the end of each chapter to help the reader grasp the concepts and ideas presented in each chapter. Koukl’s character is apparent throughout the book, with his desire to see people come to the truth. That in and of itself is a great strength to the book, because he essentially practices what he preaches.
CONCLUSION
Koukl’s desire to see people come to the truth of the gospel is very powerful throughout the book. Christians who read this and put these concepts into practice will “be able to comfortably engage in thoughtful conversations with others about your Christian convictions” (30).
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Reviewed in the United States on March 20, 2017
★★★★★ 5
Extremely helpful and applicable.
This week I received my copy of Tactics: A Game Plan for Discussing Your Christian Convictions by Greg Koukl. I was anxious to have a look at the book, as I have been following Greg Koukl's ministry of Stand to Reason for a number of years. On one hand, I was excited to see in book form what I have heard Koukl demonstrate so many times on his live radio program: an effective and gracious way to communicate one's faith in an articulate and winsome way. On the other hand, my familiarity with Koukl's Tactics audio program made me wonder if this was just a repackaging of the same material. I was thoroughly surprised. I'm a reader - but it's been a while since I have devoured a book.
Tactics is an immediately practical book. The author's heart is that Christians be equipped to be good ambassadors. An ambassador has three skills: "knowledge, an accurately informed mind; wisdom, an artful method; and character, an attractive manner." Koukl describes the goal of a tactical approach - one that seeks to converse more persuasively by being thoughtful and reasonable, rather than emotional, about one's convictions.
In a very balanced way, Koukl carefully introduces this approach and neutralizes some of the negative connotations that come with sharing and defending the faith. Some people immediately object at the idea of argumentation or "methods." However, Koukl summarizes a more biblical approach:
"Here's the key principle: Without God's work, nothing else works; but with God's work, many things work. Under the influence of the Holy Spirit, love persuades. By the power of God, the gospel transforms. And with Jesus at work, arguments convince. God is happy to use each of these methods."
Now Koukl dives into the meat of the book. He presents about a half dozen "tactics," as he calls them - each with a memorable name, such as, "Columbo," "Suicide," and, "Taking the Roof Off," among others. As he teaches you these tactics, Koukl's experience and mastery in this area immediately become evident. He is not a theorist presenting untested ideas. Instead, he is a veteran, discussing situation after situation gleaned from countless personal encounters, public debates, radio interviews, and friendly conversations. The phenomenal part is that these approaches are simple and the applications are immediately accessible to the reader.
One particular insight Koukl shares should bring relief to those who feel fear come over them at even the thought of discussing their faith: you don't have to hit home runs. In fact, Koukl stresses that you don't even have to get on base. The goal is to leave them with something to think about. His advice: simply leave them with "a stone in their shoe."
Navigating through the book, you will find gem after gem of wisdom. So many of the common objections that the Christian encounters are found here - but with answers that are actually useful in conversation. Although much of the substance is philosophical in nature, Koukl drops the jargon and replaces it with practical expressions. This is a handbook suitable for the layman and professional apologist alike.
After passing the halfway point in the book, you will realize that you are not just learning how to steer safely through a conversation - you are learning how to think. Koukl will sharpen your thinking skills and your ability to spot fuzzy logic and faulty arguments. You will realize that this is a book about truth. By the time you reach the end (it's about 200 pages), you will be amazed at the amount of wisdom, insight, and courage you have gleaned. A second reading is definitely in order.
Koukl's Tactics is endorsed by a long list of notable apologists and Christian thinkers: Norman Geisler, William Lane Craig, Gary Habermas, J. P. Moreland, Hank Hanegraaff, Jay Wesley Richards, David Noebel, Justin Taylor, Paul Copan, Sean McDowell, Frank Turek, and Craig Hazen.
For those familiar with Koukl's Tactics audio program, many of the same personal encounters are cited. However, this is not a repackaging of old material. I found the book to be immensely helpful even after recently re-listening to Greg Koukl's Tactics in Defending the Faith audio program. In addition to the expanded and fresh material, I found the summaries at the end of each chapter to be particularly helpful.
Greg Koukl's Tactics: A Game Plan for Discussing Your Christian Convictions is not designed to give you pat answers or lists of facts to bring to your conversations. Far from being "another evangelism book," Tactics is a book that will challenge you to be a critical thinker, a logical communicator, and a gracious ambassador for Jesus Christ.
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Reviewed in the United States on February 3, 2009
★★★★★ 5
This is the all-important second-side of apologetics
Apologetics requires two sides of a person - the knowledgeable reasoning side and the compassionate, calm-but-tactical side. Both are key, whether you are a presuppositional apologist or an evidentiary apologist. Regardless of the facts you put on the forefront of your apologetic, this book helps make your conversations more fruitful, last longer, and reach more people for Christ. This book is a supreme source to help develop this second side.
Greg Koukl is an apologetics professor at Biola University and has his own radio talk show where he defends the Christian worldview. He also conducts an online ministry at str dot org. (STR = stand to reason)
The focus of this book is to provide easy-to-remember and usable tactics for discussing your faith and conversing with people of different viewpoints in ways to open their minds to the Christian worldview. Koukl begins with a discussion on the need to keep discussions from being trench warfare. Too many discussions about Christian apologetics are cut short by harsh arguments that do little. Christians must be all things to all people and find a way to share the faith while not scaring off those we want to have hear it. In short, Koukl writes "If anyone in the conversation gets angry, you lose."
Greg's underlying principle is not to take everyone to the cross with every discussion. Some people are way too far away from belief to make such a trek in such a small amount of time. The need to help open the other person's mind to Christ and plow the field to make the ground of the heart fertile is most necessary in many people. That is why he focuses on putting a rock in everyone's shoe. What he means by this is he wants to put an idea in their head that they will likely spend a lot of time thinking about. He wants to be the rock in the shoe that noone forgets about. Through this, he plants a seed of thought in the person and leaves the rest up to God.
While the intent of this book is not to give ready-made answers to specific arguments critics have, there are specific examples he discusses while he is giving examples of how a tactic might work. For example, the belief in moral relativism is discussed when he discusses the tactic of "Practical Suicide" (an argument that cannot stand because it is self-refuting.)
The reviews of this book included inside the cover are a who's-who of Christian apologists. And, after reading the book, I see what they were all raving about. This book is one of the top apologetic resources I have read, and it serves as a practical guide for all discussions.
I give this book my highest recommendation for anyone interested in Christian apologetics regardless of your experience or knowledge level. This book will be suc a huge blessing to all Christians and to their ability to discuss Christ more effectively.
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Reviewed in the United States on June 6, 2010
★★★★★ 5
great book
Gregory Koukl does an excellent job of equipping believers to engage in meaningful and respectful conversations with skeptics. Rather than teaching readers how to win arguments, he provides practical tools for asking thoughtful questions and fostering productive dialogue.
This book not only prepares Christians to defend their faith with confidence, but it also offers valuable insights into effective communication in general. As I read, I found that it strengthened my understanding of my own beliefs and helped me think more deeply about why I believe what I do. The result is a greater confidence in sharing and discussing faith with others.
I highly recommend this book to anyone who wants to become a more effective communicator and a more thoughtful ambassador for Christ.
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Reviewed in the United States on June 3, 2026
★★★★★ 4
good book
Format: Kindle
Good selection of cases depicting complications and management
More tips and tricks involving structural cases would have been useful
Thanks
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Reviewed in the United States on April 6, 2024
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