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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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4.6 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
The Sidekick in Early-Modern Literature.
Tom Jones is probably the most influential novel in English history, pioneering elements like complex characterization, social criticism and authorial interjection. But you already knew that.
What you want to know is, is this a good book for us in the 21st century. And here, it's not so clear. The dialogue is pretty brisk, and some of the exchanges (the stereotypical Whig Mrs. Western arguing with her Jacobite brother is a particular treat) are actually funny. The latter part of the novel evolves into a farce, with a dozen characters engaged in scheming against one another, while Tom and Sophia helplessly go along. Farce works better in drama, where it has a faster pace, but it's always a welcome mode of comedy. You don't see enough farces.
Some of the characters are evocative (why do I picture Blifil as looking like Ted Cruz?) but some are not: Dowling is just a lawyer, and Mrs. Miller is a good woman, like thousands who have come since, and that's all there is to it. It's not as if every character needs to, or can, be a fully realized person, but the parts of the novel spent with these human plot devices do feel mechanical.
But Mr. Partridge, Tom's traveling companion, is in a different category altogether, and he just poisons the parts of the novel that he features in (chiefly the middle third). Eighteenth Century literature has a depressing reliance on goofy loose-lipped sidekicks: Mr. Partridge, Hugh Strap, Humphrey Clinker, Andrew Fairservice, Friday. Sometimes they're servants, but sometimes they're just stupid friends.
Part of this must be practical: It's difficult to follow a wandering hero (and why are the heroes of these novels always wandering? But that's a different question altogether) without giving him a friend to talk to. Maybe early novelists had a hard time sketching characters who didn't have a way to discuss the ongoing action.
But mostly, I think this is the bad influence of Don Quixote, which was becoming increasingly popular in England during this period. Sancho Panza is OK, and he's certainly the funniest element of that leaden tome. But Mr. Partridge *is* Sancho Panza, cowardice, superstition and all, and one Sancho Panza was more than enough. You know? There's a limited number of things that a silly, selfless, lazy pal can do, and it's hard to read about the same old doofus, yet again.
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Reviewed in the United States on April 28, 2016
★★★★★ 5
Delightful and entertaining
Format: Kindle
314. The History of Tom Jones: a foundling by Henry Fielding (Novel-Audible/E Book-Fiction) 5* I read along with the Audible of the novel which I found a highly delightful and entertaining experience.
The narrator, Bill Homewood, who performed the audio version of the work was excellent doing the various characters as well as the invisible narrator (author) of the story. The Synopsis is as follows:
A foundling of mysterious parentage brought up by Mr. Allworthy on his country estate, Tom Jones is deeply in love with the seemingly unattainable Sophia Western, the beautiful daughter of the neighboring squire—though he sometimes succumbs to the charms of the local girls. When Tom is banished to make his own fortune and Sophia follows him to London to escape an arranged marriage, the adventure begins. A vivid Hogarthian panorama of eighteenth-century life, spiced with danger and intrigue, bawdy exuberance and good-natured authorial interjections, Tom Jones is one of the greatest and most ambitious comic novels in English literature.
It is rather brilliant, and there is no lack of shenanigans as we follow Jones through his history and the reader never knows when and where the author will abruptly go off on a tangent, told in a most eloquent manner, end with a flourish and no doubt tossed his quill down and took a bow. I am either taken in by some farce or thoroughly enchanted by this author. As Fielding is rather the loquacious writer this read comes in Audible time at almost 38 hours or roughly 1,000 pages but worth every minute spent on it.
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Reviewed in the United States on December 19, 2017
★★★★★ 5
An epic nearly 300 years old
Tom Jones is the comical history of a young man who was adopted into a rich family and faces a brother who is against him all while they grow into maturity. It’s kind of like the first part of JoJo’s Bizarre Adventure except with Jonathan and Dio being reversed and with no vampires, but there is a moment where someone gets really scared while watching the ghost in hamlet so there’s at least some notion of the supernatural. Getting into it though, it’s an easy read despite it’s length encompassing 18 books, it’s honestly fascinating that it was able to be written so cleanly considering how many gaps there must of been between these books being written, it reads to us as a consistent narrative, but to imagine the wait and changing times that must have occurred during the duration to the story is really interesting to consider. The role and function of the narrator is probably the only real glimpse of this in narrative as he’s really just talking to us in the first chapter of every book, but the narrator being so clever and charming makes the only thing of interest be him and the relationship we form to him. It’s an incredible experience that I can recommend the entire story for alone. Getting to know the narrator is like talking to an old, reliable friend and it’s worth reading into nearly 300 years on.
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Reviewed in the United States on March 27, 2021
★★★★★ 3
Jone's Tome
This book seems more likely to be enjoyed by literary academics than by folks looking for a good story. While Henry Fielding is indeed a learned man of letters and does write in a fine and high style with many subordinate clauses, the actual substance thereof is no better than more earthy pedestrian fare.
To put it plainly, I found most of the book a rather tedious slog. This is my personal subjective opinion only as I do believe Henry Fielding is well esteemed by serious literary scholars who undoubtedly see the matter quite differently. I am judging this book purely by my own personal enjoyment of the actual narrative and plot construction, and by my difficulty in teasing out the subordinate clauses which are so bound up with this age of writing. Imagine a very learned and erudite professor trying to tell you a common bawdy tale, but taking forever to do it while using the most stuffy language.
I had thought that my deeper background in reading many Victorian era novels would qualify me to enjoy this one, but the language was a little too dense to make it an enjoyable read. I was however able to follow the story as well as the side epistles the author directly addresses the reader with (which I find to be an annoying device also much used in that era).
I did read the whole thing and did take pleasure in some parts, but I must confess my bias towards this earlier era of novel writing. It takes very learned men of their age and has them writing long-winded tales of inferior construction when compared against later centuries. I know this is not their fault any more than you can blame a champion athlete of his time for having his record broken decades later when methods have universally improved.
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Reviewed in the United States on July 19, 2015
★★★★★ 5
Text is nearly 300 years old…!!! 😅😅😅
Read this publication alongside Cliff Notes. It’s a fun book, but the Latin poems and phrases can be intimidating. In addition, watch the movie. It’s an old text, so utilize resources to develop your understanding. 📚📖📙📘📗📕
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Reviewed in the United States on June 1, 2026
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