| Attribute | Value |
|---|---|
| Product Name | Telemecanique/Schneider Sr1 E121Bd Logic Module 24Vdc |
| Brand | Telemecanique |
| Manufacturer | Schneider Electric |
| Model | Sr1 E121Bd |
| Input | Ib…Ic = 0…10Vdc Or 24Vdc |
| Outputs | 4 x Relay / 8A |
| Power Supply | 24Vdc |
| Output Ratings | 24Vdc, 8A / 240Vac, 8A |
| Part Number | 0145 |
| Version | V1.7 |
| Country of Origin | Taiwan |
| Weight | 180 Gm |
What is Telemecanique/Schneider SR1 E121BD Logic Module?
The Telemecanique/Schneider SR1 E121BD Logic Module 24VDC is a small but potent automation controller, very common in industry and marine uses. Schneider Electric designed this logic module under the Telemecanique brand to deliver consistent performance for small automation functions like machine control, process monitoring, and equipment sequencing.
It belongs to the Zelio Logic Smart Relay series, which is characterized by simplicity, effectiveness, and flexibility. The model is suitable for use where a PLC is too big or complicated, providing affordable automation with easy programming.
Features of SR1 E121BD Logic Module
Space-Saving & Compact Design – compact footprint for effortless installation in control panels.
24VDC Supply Voltage – reliable low-voltage operation compatible with industrial and marine applications.
Digital Inputs & Outputs – Reliable signal processing for control operations.
User-Friendly Programming – Supports Zelio Soft software for easy programming.
Expandable Options – Integrable with other modules for added functionality.
LED Status Indicators – Diagnostic visibility for operation monitoring.
Durability – Built to handle rugged environments with high Schneider quality.
Applications
The SR1 E121BD is extensively used in industries requiring straightforward yet efficient control logic. Some of its typical applications are:
Industrial Automation:
- Machine start/stop sequencing
- Conveyor system control
- Simple motor control applications
Marine Applications:
- Ship automation panels
- Engine room monitoring systems
- Pump and valve control
Building & Utility Automation:
- Lighting control
- HVAC system monitoring
- Water treatment equipment
Its versatility makes it ideal for factories, ships, and building infrastructure, where reliability and ease of programming are of prime importance.
Why Choose Telemecanique/Schneider SR1 E121BD Logic Module?
Trusted Brand – Supported by Schneider Electric’s established reputation in automation.
Cost-Effective Solution – Ensures dependable performance at the cost of expensive full-scale PLCs.
Ease of Use – Simple programming makes it easy to set up even for inexperienced users.
Flexibility & Expansion – Expands with add-on modules to support increasing demands.
Proven Reliability – Designed for industrial and marine applications with smooth operation.
Choosing the SR1 E121BD means investing in a durable, efficient, and future-ready automation solution that saves time and enhances productivity.









