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Zelio Logic 
Schneider SR2B121BD | compact smart relay Zelio Logic – 12 I O – 24 V DC – clock – display
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Out of stock
Schneider SR2B121BD | compact smart relay Zelio Logic – 12 I O – 24 V DC – clock – display
10,174 EGP 18,498 EGP
Out of stock
CompareSchneider SR2B121BD | compact smart relay Zelio Logic – 12 I O – 24 V DC – clock – display
The Schneider Electric SR2B121BD is a compact smart relay from the Zelio Logic series, designed for small to medium-scale automation tasks. This model offers 12 I/O (inputs/outputs), operates at 24V DC, and features an integrated clock and display. With these enhanced capabilities, it’s ideal for applications requiring time-based control and simple visualization.
Key Features
Product Type: Compact smart relay
Series: Zelio Logic
Number of I/O: 12 I/O (8 digital inputs, 4 digital outputs)
Voltage: 24V DC
Clock: Integrated real-time clock for time-based control
Display: Built-in display for status and monitoring
User Interface: Simple and intuitive interface for programming and monitoring
Programming: Can be programmed using Zelio Soft 2 software
Mounting: DIN rail compatible
Electrical Specifications
Power Supply: 24V DC
Digital Inputs: 8 digital inputs for receiving ON/OFF signals
Digital Outputs: 4 digital outputs for controlling devices such as motors, lights, or relays
Relay Contacts: Normally open (NO) contacts for digital outputs
Clock Function: Real-time clock for time-based operations such as scheduling and time delays
Output Current: 0.5 A per output channel (maximum)
Programming: Ladder logic programming via Zelio Soft 2
Mechanical & Environmental Specifications
Housing: Compact plastic housing for space-saving installation
Mounting: Easily mounted on DIN rail for quick installation
Operating Temperature: 0°C to +55°C
Storage Temperature: -20°C to +70°C
Protection Rating: IP20 (module body)
Dimensions: Designed to be compact, saving valuable panel space
Applications
Time-Based Control: Ideal for applications requiring time-dependent operations like scheduling and delays
Small Automation Systems: Perfect for automating small machines, lighting, or heating systems
Energy Management: Suitable for simple energy monitoring or control in industrial environments
Process Control: Useful in simple process automation where time-based control is needed
Home Automation: Can be employed in home automation for controlling lighting, HVAC, and other devices based on time schedules
Advantages
Built-in Clock: Time-based functionality for more complex automation tasks like scheduling or timed delays
Integrated Display: Visual feedback for easier monitoring and troubleshooting
Compact and Space-Saving: Efficient use of space, suitable for environments with limited panel space
Flexible I/O Configuration: 12 I/O points allow for moderate control tasks
User-Friendly Programming: Easy programming and configuration via Zelio Soft 2, suitable for both beginners and advanced users
Reliable Performance: Built to operate in harsh environments with high durability and long service life
| range of product | Zelio Logic |
|---|---|
| Product or component type | Compact smart relay |
| 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 | 24 V DC |
| Supply voltage limits | 19.2…30 V |
| Maximum supply current | 100 mA (without extension) |
| Power dissipation in W | 3 W without extension |
| Reverse polarity protection | With |
| Discrete input number | 8 conforming to IEC 61131-2 Type 1 |
| discrete input type | Resistive |
| Discrete input voltage | 24 V DC |
| Discrete input current | 4 mA |
| Counting frequency | 1 kHz for discrete input |
| Voltage state 1 guaranteed | >= 15 V for I1…IA and IH…IR discrete input circuit >= 15 V for IB…IG used as discrete input circuit |
| Voltage state 0 guaranteed | <= 5 V for I1…IA and IH…IR discrete input circuit <= 5 V for IB…IG used as discrete input circuit |
| Current state 1 guaranteed | >= 1.2 mA (IB…IG used as discrete input circuit) >= 2.2 mA (I1…IA and IH…IR discrete input circuit) |
| Current state 0 guaranteed | <= 0.5 mA (IB…IG used as discrete input circuit) <= 0.75 mA (I1…IA and IH…IR discrete input circuit) |
| Input compatibility | 3-wire proximity sensors PNP for discrete input |
| analogue input number | 4 |
| analogue input type | Common mode |
| Analogue input range | 0…10 V 0…24 V |
| Temperature probe type | NTC 10k at 25 °C NTC 1000k at 25 °C KTY81 210/220/221/222/250 Pt 500 |
| Maximum permissible voltage | 30 V for analogue input circuit |
| analogue input resolution | 8 bits |
| LSB value | 39 mV for analogue input circuit |
| Conversion time | Smart relay cycle time for analogue input circuit |
| Conversion error | +/- 5 % at 25 °C for analogue input circuit +/- 6.2 % at 55 °C for analogue input circuit |
| Repeat accuracy | +/- 2 % at 55 °C for analogue input circuit |
| Operating distance | 10 m between stations, with screened cable (sensor not isolated) for analogue input circuit |
| Input impedance | 12 kOhm for IB…IG used as analogue input circuit 12 kOhm for IB…IG used as discrete input circuit 7.4 kOhm for I1…IA and IH…IR discrete input circuit |
| Number of outputs | 4 relay |
| Output voltage limits | 24…250 V AC (relay output) 5…30 V DC (relay output) |
| 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 IEC 60947-5-1 AC-15: 500000 cycles at 230 V, 0.9 A for relay output conforming to IEC 60947-5-1 DC-12: 500000 cycles at 24 V, 1.5 A for relay output conforming to IEC 60947-5-1 DC-13: 500000 cycles at 24 V, 0.6 A for relay output conforming to 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 conforming to EN/IEC 60947-1 and EN/IEC 60664-1 |
| clock | With |
| Response time | 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 IEC 60664-1 |
| Net weight | 0.25 kg |
| Immunity to microbreaks | 1 ms |
|---|---|
| product certifications | GL CSA UL GOST C-Tick |
| Standards | IEC 61000-4-12 IEC 61000-4-4 level 3 IEC 61000-4-5 IEC 61000-4-11 IEC 61000-4-2 level 3 IEC 60068-2-6 Fc IEC 61000-4-6 level 3 IEC 60068-2-27 Ea IEC 61000-4-3 |
| IP degree of protection | IP20 (terminal block) conforming to IEC 60529 IP40 (front panel) conforming to IEC 60529 |
| Environmental characteristic | EMC directive conforming to IEC 61000-6-2 EMC directive conforming to IEC 61000-6-3 EMC directive conforming to IEC 61000-6-4 EMC directive conforming to IEC 61131-2 zone B Low voltage directive conforming to IEC 61131-2 |
| Disturbance radiated/conducted | Class B conforming to EN 55022-11 group 1 |
| Pollution degree | 2 conforming to 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 |
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 6.8 cm |
| Package 1 Width | 8.8 cm |
| Package 1 Length | 10.0 cm |
| Package 1 Weight | 239.0 g |
| Unit Type of Package 2 | S03 |
| Number of Units in Package 2 | 30 |
| Package 2 Height | 30.0 cm |
| Package 2 Width | 30.0 cm |
| Package 2 Length | 40.0 cm |
| Package 2 Weight | 7.685 kg |
| Warranty | 18 months |
|---|
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