Product details
SR2B121FU Schneider Electric Zelio Logic Compact Smart Relay
SR2B121FU is a compact smart relay from Schneider Electric. It belongs to the Zelio Logic series. This model offers 12 I/O points for small control tasks. It runs on 100-240 V AC power. A built-in clock and LCD screen make setup easy. It is a smart choice for simple automation jobs.
Why This Smart Relay Stands Out
- Brand: Schneider Electric
- Model: SR2B121FU
- Series: Zelio Logic
- Type: Compact smart relay
- Best for: Small machines, lighting, pumps, building control
- Display: LCD with navigation buttons
- Clock: Integrated real-time clock
Core Electrical Data
- I/O points: 12
- Digital inputs: 8 at 100-240 V AC
- Digital outputs: 4 relay
- Relay output current: 8 A thermal current per output
- Supply voltage: 100-240 V AC
- Supply range: 85-264 V, 50/60 Hz
- Communication: Through extension modules
Technical Specifications
- Brand: Schneider Electric
- Model: SR2B121FU
- Series: Zelio Logic
- Module type: Compact smart relay
- Input count: 8 digital inputs
- Input voltage: 100-240 V AC
- Output count: 4 relay outputs
- Output current: 8 A thermal current per output
- Power supply: 100-240 V AC
- Power range: 85-264 V, 50/60 Hz
- Clock: Integrated real-time clock
- Display: LCD with navigation buttons
- Program memory: 240 lines ladder or 500 blocks FBD
- Communication: Via extension modules
- Temperature range: -20 to 55 degrees C
- Mounting: 35 mm DIN rail
- Dimensions: 90 x 71.2 x 59.5 mm, H x W x D
- Weight: 0.25 kg
- Mechanical life: 10,000,000 cycles for relay output
- Electrical life: 500,000 cycles at AC-12, 230 V, 1.5 A
- Standard: IEC 60947-5-1
Installation Guide
- Turn off power before you start.
- Check panel space and DIN rail.
- Clip the relay onto a 35 mm rail.
- Keep the unit upright for airflow.
- Wire inputs and outputs with care.
- Tighten terminals to the right torque.
- Test each input and output.
- Load the program after wiring.
Setup and Maintenance Ease
- Front buttons make menu use simple.
- LCD shows status at a glance.
- No special tools are needed.
- Program changes are quick.
- Relay outputs are easy to replace.
- Keep the unit clean and dry.
Compatibility Notes
- Fits standard 35 mm DIN rail systems.
- Works with Zelio Logic extension modules.
- Pairs with Schneider Electric accessories.
- Suits 100-240 V AC control panels.
- Can replace same-size smart relays.
Certifications and Standards
- IEC 60947-5-1: Standard for control circuit devices.
- Relay output life: 500,000 cycles at AC-12, 230 V, 1.5 A.
- Lifecycle: Active in the Zelio Logic range.
What You Get
- 1 x Schneider Electric SR2B121FU smart relay
- Protective retail or bulk packaging
- Documentation as supplied by the factory
- 12 month warranty
Shipping and Warranty
- Warranty: 12 months
- Dispatch: 12 to 24 hours
- Courier: FedEx, UPS, DHL
- Tracking: Shared after dispatch
- Support: sales@powergearx.com
- WhatsApp: +86 18030005825
Expert Review
The SR2B121FU is a smart relay that does a lot for its size. Schneider Electric built the Zelio Logic line for simple control jobs. The 12 I/O points fit small machines and building tasks. The 100-240 V AC supply works in many panels. The LCD and clock help with time-based control. The relay outputs handle 8 A each. This is not a full PLC. It is a simple, steady tool for daily use.
Manager’s Insight
Stock this SR2B121FU for small automation projects. The Zelio Logic range is active, so parts are easy to source. The 100-240 V AC supply suits many markets. Fast courier options cut lead time. The 12 month warranty lowers buyer risk. For resellers, keep a few units ready for quick jobs.
Best Applications
- Small machine control
- Lighting schedules
- Pump and fan control
- Building automation
- Gate and door control
- Simple process tasks
- Retrofit and replacement work
FAQ
How many I/O points does this relay have?
It has 12 points. That means 8 inputs and 4 outputs.
What is the output type?
The outputs are relay type. Each one handles 8 A thermal current.
Does it have a clock?
Yes. It has a built-in real-time clock for time-based tasks.
Can I expand it later?
Yes. You can add extension modules for more points.
Is there a warranty and fast shipping?
Yes. We offer a 12 month warranty and dispatch in 12 to 24 hours. We ship by FedEx, UPS, or DHL.
Buying Guide
- Count your inputs and outputs first.
- Check the supply voltage in your panel.
- Pick relay outputs for mixed loads.
- Add extension modules if you need more points.
- Confirm DIN rail space.
- Order spares for service work.
For quotes or help, contact sales@powergearx.com or +86 18030005825 on WhatsApp.
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