Schneider SR2B121JD Compact Smart Relay
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Model | SR2B121JD |
| Product Series | Zelio Logic |
| Product Type | Compact Smart Relay |
| Number of I/O | 12 |
| Rated Supply Voltage | 12 V DC |
| Supply Voltage Range | 10.4–14.4 V DC |
| Maximum Supply Current | 120 mA without extension |
| Power Consumption | 1.5 W without extension |
| Number of Digital Inputs | 8 |
| Digital Input Voltage | 12 V DC |
| Digital Input Current | 4 mA |
| Analog Inputs | 4 |
| Analog Input Range | 0–10 V / 0–12 V |
| Analog Input Resolution | 8 bits |
| Input Compatibility | 3-wire PNP proximity sensors |
| Number of Outputs | 4 relay outputs |
| Output Contact Type | Normally open (NO) |
| Relay Output Voltage | 24–250 V AC; 5–30 V DC |
| Output Thermal Current | 8 A total for all four outputs |
| Local Display | Built-in display |
| Programming Languages | Ladder Diagram (LD), Function Block Diagram (FBD) |
| Programming Capacity | Up to 240 ladder lines or 500 FBD blocks |
| Cycle Time | 6–90 ms |
| Real-Time Clock | Built-in |
| Program Backup | Up to 10 years at 25°C under specified conditions |
| Reverse Polarity Protection | Yes |
| Mounting | 35 mm DIN rail or screw fixing |
| Operating Temperature | -20°C to +55°C |
| Dimensions | 107.6 × 71.2 × 59.5 mm |
| Weight | 0.25 kg |
FAQ
Q1: What is the main function of the Schneider SR2B121JD Compact Smart Relay?
A1: The SR2B121JD is a programmable smart relay in the Zelio Logic series. It executes user-defined control programs to automate small machines, pumps, lighting systems, ventilation equipment, and other applications requiring basic sequencing and logic control.
Q2: What power supply does the SR2B121JD require?
A2: This model operates on a 12 V DC supply, with an allowable range of 10.4–14.4 V DC. Verify supply polarity and voltage before energizing the relay to prevent malfunction or damage.
Q3: Can the SR2B121JD receive analog signals from sensors?
A3: Yes. It provides four analog input channels supporting voltage signals in the 0–10 V and 0–12 V ranges, with 8-bit resolution. Check the input terminal configuration and sensor output range before connecting the sensor.
Q4: Which programming methods are supported by this smart relay?
A4: The SR2B121JD supports Ladder Diagram (LD) and Function Block Diagram (FBD) programming through Schneider Electric Zelio Soft software. Choose the programming method according to the control requirements and verify the program before commissioning.
Q5: What should I check if the relay powers on but does not execute the control program correctly?
A5: Check the input status, program logic, supply stability, and any error indications on the display. Confirm that the connected sensors provide signals within the specified input ranges. If the problem persists, review the program using compatible software and follow the manufacturer’s troubleshooting procedure.
Q6: What are the limitations of the relay outputs?
A6: The four relay outputs support 24–250 V AC or 5–30 V DC, with a combined thermal current of 8 A. The permissible switching current depends on the load type and operating conditions. Check the electrical ratings and use appropriate suppression for inductive loads.
Q7: Can the SR2B121JD retain its program after a power interruption?
A7: Yes. Its built-in memory backup can retain the program for up to 10 years at 25°C under specified conditions. After power is restored, verify the program status, real-time clock settings, and normal operation of the connected equipment.
Q8: What should be considered when replacing another smart relay with the SR2B121JD?
A8: Verify the 12 V DC supply requirement, input signal types, analog input ranges, output contact ratings, terminal assignments, and program compatibility. A relay with a different supply voltage or input configuration may not be a direct replacement. Test the complete control sequence before returning the system to service.
Schneider SR2B121JD Compact Smart Relay is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.
