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Description
SR3MBU01BDMain Range of product Zelio Logic Product or component type Modbus slave communication module Wiring mode 2 or 4 wires Complementary Product compatibility All modules with 24 V supply SR3 B BD Communication port protocol Modbus Communication port support RS485 Electrical connection 1 connector RJ45 Transmission frame RTU ASCII Transmission rate 1200 bauds 9600 bauds 38400 bauds 19200 bauds 57600 bauds 28800 bauds 2400 bauds 4800 bauds Parity No Odd
Main
| Range of product | Zelio Logic |
| Product or component type | Modbus slave communication module |
| Wiring mode | 2 or 4 wires |
Complementary
| Product compatibility | All modules with 24 V supply SR3 B...BD |
| Communication port protocol | Modbus |
| Communication port support | RS485 |
| Electrical connection | 1 connector RJ45 |
| Transmission frame | RTU ASCII |
| Transmission rate | 1200 bauds 9600 bauds 38400 bauds 19200 bauds 57600 bauds 28800 bauds 2400 bauds 4800 bauds |
| Parity | No Odd Even |
| Number of addresses | 1…247 |
| Programming language | FBD Ladder |
| Connections - terminals | Screw terminals, 1 x 0.25...1 x 2.5 mm² (AWG 24...AWG 14) semi-solid Screw terminals, 1 x 0.25...1 x 2.5 mm² (AWG 24...AWG 14) solid Screw terminals, 2 x 0.25...2 x 1.5 mm² (AWG 23...AWG 16) solid Screw terminals, 1 x 0.25...1 x 2.5 mm² (AWG 24...AWG 14) flexible with cable end Screw terminals, 2 x 0.25...2 x 0.75 mm² (AWG 24...AWG 18) flexible with cable end |
| Tightening torque | 0.5 N.m |
| Local signalling | 1 LEDcommunication: 1 LEDpower ON: |
| Net weight | 0.11 kg |
Environment
| Product certifications | GOST CSA GL C-Tick UL |
| Standards | EN/IEC 60068-2-27 Ea EN/IEC 61000-4-3 EN/IEC 61000-4-4 level 3 EN/IEC 61000-4-2 level 3 EN/IEC 61000-4-5 EN/IEC 60068-2-6 Fc |
| 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 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 |
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
4.3 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Scrub a dub dub
Scent: Ivory
I like the scrubby side more then the soft side, fits great in the hand, washing doesn’t ruin the durability or feel and the pack is a great deal!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
★★★★★ 5
A bit small!
Format: Board book, Format: Board book
Polar Bear, Polar Bear, What Do You Hear? / Oso polar, oso polar, ¿qué es ese ruido? is such a great classic! My students absolutely love the repetitive, rhythmic text—it keeps them engaged and encourages participation, especially during read-alouds.
I also love that it’s bilingual, which supports my students in building vocabulary and making connections in both English and Spanish. It’s perfect for a diverse classroom and helps all learners feel included.
The only downside is that the book is a bit smaller than expected, but it’s still a wonderful addition to our classroom library. Overall, a must-have for early childhood classrooms!
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Reviewed in the United States on April 10, 2026
★★★★★ 5
This book’s a classic!
Format: Board book
Love, love, love this book. It’s great that it is bilingual. We need more books like this!
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Great for toddler
Format: Board book
This book is repetitive which allows my toddler to understand what the book is about with ease. My toddler has learned so much from this book, and the bilingual aspect is great for our goal!
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Reviewed in the United States on March 6, 2026
★★★★★ 5
Great bilingual children's board book
Format: Board book
Our kiddo loves this series of books. We appreciate that they are bilingual, with both English and Spanish on each page. My partner can read the same book one way, while I read it another. All the while, our kiddo can follow along and choose the names and languages they are most comfortable with.
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Reviewed in the United States on August 26, 2025