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Description
SR2B121FUMain Range of product Zelio Logic Product or component type Compact smart relay Complementary Local display With Number or control scheme lines 0240 with ladder programming 0500 with FBD programming Cycle time 690 ms Backup time 10 years at 25 C Clock drift 12 min year at 055 C 6 s month at 25 C Checks Program memory on each power up [Us] rated supply voltage 100 240 V AC Supply voltage limits 85264 V Supply frequency 50 60 Hz Maximum supply current
Main
| Range of product | Zelio Logic |
| Product or component type | Compact smart relay |
Complementary
| Local display | With |
| Number or control scheme lines | 0…240 with ladder programming 0…500 with FBD programming |
| Cycle time | 6…90 ms |
| Backup time | 10 years at 25 °C |
| Clock drift | 12 min/year at 0…55 °C 6 s/month at 25 °C |
| Checks | Program memory on each power up |
| [Us] rated supply voltage | 100...240 V AC |
| Supply voltage limits | 85…264 V |
| Supply frequency | 50/60 Hz |
| Maximum supply current | 30 mA at 240 V (without extension) 80 mA at 100 V (without extension) |
| Power consumption in VA | 7 VA without extension |
| Isolation voltage | 1780 V |
| Protection type | Against inversion of terminals (control instructions not executed) |
| Discrete input number | 8 |
| Discrete input voltage | 100...240 V AC |
| Discrete input current | 0.6 mA |
| Discrete input frequency | 47...53 Hz 57...63 Hz |
| Voltage state 1 guaranteed | >= 79 V for discrete input |
| Voltage state 0 guaranteed | <= 40 V for discrete input |
| Current state 1 guaranteed | >= 0.17 mA (discrete input) |
| Current state 0 guaranteed | <= 0.5 mA (discrete input) |
| Input impedance | 350 kOhm for discrete input |
| Number of outputs | 4 relay |
| Output voltage limits | 5...30 V DC (relay output) 24...250 V AC |
| Contacts type and composition | NO for relay output |
| Output thermal current | 8 A for all 4 outputs for relay output |
| Electrical durability | AC-12: 500000 cycles at 230 V, 1.5 A for relay output conforming to EN/IEC 60947-5-1 AC-15: 500000 cycles at 230 V, 0.9 A for relay output conforming to EN/IEC 60947-5-1 DC-12: 500000 cycles at 24 V, 1.5 A for relay output conforming to EN/IEC 60947-5-1 DC-13: 500000 cycles at 24 V, 0.6 A for relay output conforming to EN/IEC 60947-5-1 |
| Switching capacity in mA | >= 10 mA at 12 V (relay output) |
| Operating rate in Hz | 0.1 Hz (at Ie) for relay output 10 Hz (no load) for relay output |
| Mechanical durability | 10000000 cycles for relay output |
| [Uimp] rated impulse withstand voltage | 4 kV EN/IEC 60947-1 and EN/IEC 60664-1 |
| Clock | With |
| Response time | 50 ms with ladder programming (from state 0 to state 1) for discrete input 50 ms with ladder programming (from state 1 to state 0) for discrete input 50...255 ms with FBD programming (from state 0 to state 1) for discrete input 50...255 ms with FBD programming (from state 1 to state 0) for discrete input 10 ms (from state 0 to state 1) for relay output 5 ms (from state 1 to state 0) for relay output |
| Connections - terminals | Screw terminals, 1 x 0.2...1 x 2.5 mm² (AWG 25...AWG 14) semi-solid Screw terminals, 1 x 0.2...1 x 2.5 mm² (AWG 25...AWG 14) solid Screw terminals, 1 x 0.25...1 x 2.5 mm² (AWG 24...AWG 14) flexible with cable end Screw terminals, 2 x 0.2...2 x 1.5 mm² (AWG 24...AWG 16) solid Screw terminals, 2 x 0.25...2 x 0.75 mm² (AWG 24...AWG 18) flexible with cable end |
| Tightening torque | 0.5 N.m |
| Overvoltage category | III conforming to EN/IEC 60664-1 |
| Net weight | 0.25 kg |
Environment
| Immunity to microbreaks | 10 ms |
| Product certifications | GL GOST UL CSA C-Tick |
| Standards | EN/IEC 61000-4-4 level 3 EN/IEC 60068-2-27 Ea EN/IEC 61000-4-5 EN/IEC 61000-4-11 EN/IEC 61000-4-12 EN/IEC 61000-4-3 EN/IEC 60068-2-6 Fc EN/IEC 61000-4-2 level 3 EN/IEC 61000-4-6 level 3 |
| IP degree of protection | IP20 (terminal block) conforming to IEC 60529 IP40 (front panel) conforming to IEC 60529 |
| Environmental characteristic | EMC directive conforming to EN/IEC 61000-6-2 EMC directive conforming to EN/IEC 61000-6-3 EMC directive conforming to EN/IEC 61000-6-4 EMC directive conforming to EN/IEC 61131-2 zone B Low voltage directive conforming to EN/IEC 61131-2 |
| Disturbance radiated/conducted | Class B conforming to EN 55022-11 group 1 |
| Pollution degree | 2 conforming to EN/IEC 61131-2 |
| Ambient air temperature for operation | -20…40 °C in non-ventilated enclosure conforming to IEC 60068-2-1 and IEC 60068-2-2 -20…55 °C conforming to IEC 60068-2-1 and IEC 60068-2-2 |
| Ambient air temperature for storage | -40…70 °C |
| Operating altitude | 2000 m |
| Maximum altitude transport | 3048 m |
| Relative humidity | 95 % without condensation or dripping water |
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 |
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4.4 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
It’s a maybe book
Format: Paperback
The first few chapters was interesting but as I got further in it I felt like I didn’t need to read or want to read anymore
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 4
Thorough and careful research but I do disagree on some points
Format: Paperback
Review for 'When Giants Were Upon the Earth". As a Christian Bible reader of many years, I was not sure what I was getting myself into by buying and reading this book. ( I do have other books that are not part of the Bible such as Mr. Godawa mentions for reference.)
Mr. Godawa has made careful and thorough research on the subject of the Nephilim which is only briefly mentioned in the Bible. He has broadened my understanding of little known facts about the giants and the pagan beliefs of other cultures. I was pleasantly surprised and pleased that a Hollywood screenwriter would do justice to the teachings of God. I do disagree with him about his ideas about satan - I believe he is an individual spirit being and the leader of the other angels that revolted in Heaven. In the New Testament we note that he is ruler of this world John 12:31, he transforms himself into an angel of light II Cor 11:14 and he is also a roaring lion 1 Peter 5:8.
I am not totally finished with this book yet but I am hoping that there is information on Nimrod.
I would recommend this book for Christian readers who want Bible information 'fleshed out' and explained and about the sons of God, the Nephilim etc.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2017
★★★★★ 5
Me
Format: Paperback
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
What they Didn't Teach You in Sunday School
Format: Paperback
Often when reading through the Bible, whether one does so for religious reasons or not, we miss details in the background. Or we do not take into consideration cultural context while interpreting passages. Sometimes, due to difficulties in translating ancient languages into modern ones, some things are literally lost in translation. In this volume, where Godawa collects material he has previously published into one volume, he examines many of these issues. In particular, he focuses on topics that have long mystified people and been the subject of much conjecture and fictionalization: Nephilim, Watchers and giants. He also takes a close look at verses that may have had supernatural elements inadvertently scrubbed: The strange ariel creatures in 2 Samuel 23:20 translated instead into men, or the demons and goblins of Isaiah 13:21-22 written off as wild animals, etc. Clues to a different ancient world than usually supposed?
The only misstep is his adherence to the John Walton ANE interpretation. This is based on superficial interpretation, and worse history (e.g. the whole ANE "dome" interpretation of creation is largely mythical). Walton's books haves done a huge disservice in undermining biblical inerrancy. See Hugh Ross' Rescuing Inerrancy for more on Walton and others who aren't too good at biblical study.
There's a lot of food for thought in these pages. For more, see
and
.
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Reviewed in the United States on September 1, 2018
★★★★★ 5
Great supplement to Bible study
Format: Paperback
Stimulating reading for science-minded and biblically minded readers. The author who wrote this book has a lot to say about some of the strange images we read about in the Bible. Giants, flying reptiles, satyrs, fauns, denizens, angels, demons, etc. Once I read this, I began realizing that much of the strange things we see in the world outside the Bible are about as realistic as some of these images mentioned in the Bible. The battle between our minds and our souls carries on.
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Reviewed in the United States on July 26, 2024
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