Schneider SR2B202BD 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 | SR2B202BD |
| Product Series | Zelio Logic |
| Product Type | Compact Smart Relay |
| Total I/O | 20 |
| Rated Supply Voltage | 24 V DC |
| Supply Voltage Range | 19.2–30 V DC |
| Maximum Supply Current | 100 mA (without extension) |
| Power Consumption | 3 W (without extension) |
| Digital Inputs | 12 |
| Digital Input Voltage | 24 V DC |
| Digital Input Current | 4 mA |
| Analog Inputs | 6 |
| Analog Input Range | 0–10 V / 0–24 V |
| Analog Input Resolution | 8 bits |
| Maximum Permissible Analog Input Voltage | 30 V |
| Analog Input Conversion Error | ±5% at 25°C; ±6.2% at 55°C |
| Output Type | 8 transistor outputs |
| Output Voltage | 24 V DC |
| Output Voltage Range | 19.2–30 V DC |
| Output Load Current | 0.5–0.625 A per output, depending on operating conditions |
| Output Protection | Overload, short-circuit and overvoltage protection |
| 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 |
| Clock Drift | 6 seconds/month at 25°C; 12 minutes/year at 0–55°C |
| Reverse Polarity Protection | Yes |
| Mounting | 35 mm DIN rail or screw fixing |
| Protection Rating | IP20 |
| Operating Temperature | -20°C to +55°C |
| Dimensions | 124.6 × 107.6 × 59.5 mm |
| Weight | 0.28 kg |
FAQ
Q1: What is the main function of the Schneider SR2B202BD Compact Smart Relay?
A1: The SR2B202BD is a programmable smart relay from the Zelio Logic series. It is designed for small automation systems that require digital and analog signal processing, logic control, and switching of external devices. Typical applications include machine control, pump sequencing, and basic process automation.
Q2: What power supply does the SR2B202BD require?
A2: The SR2B202BD operates on a 24 V DC supply, with an allowable voltage range of 19.2–30 V DC. The power supply must be connected with the correct polarity. Although reverse-polarity protection is provided, correct wiring is essential for reliable operation.
Q3: What types of input signals can the SR2B202BD accept?
A3: The relay has 12 digital inputs and 6 analog input channels. Digital inputs are designed for 24 V DC signals, while analog inputs support 0–10 V and 0–24 V ranges. Compatible three-wire PNP proximity sensors can be used for digital input applications. Confirm the sensor’s electrical characteristics before connecting it.
Q4: What is the difference between the SR2B202BD and a relay-output smart relay?
A4: The SR2B202BD uses eight transistor outputs rather than mechanical relay contacts. Transistor outputs are suitable for compatible DC loads and frequent switching, with no mechanical contact wear. However, they have specific polarity, voltage, and current requirements and are not direct substitutes for relay outputs in every application.
Q5: How should the transistor outputs be protected during operation?
A5: The SR2B202BD includes output protection against overload, short circuits, and overvoltage. Even so, each connected load must remain within the specified voltage and current limits. For inductive loads such as solenoids, use suitable suppression components where required and follow the manufacturer’s wiring recommendations.
Q6: Why might an analog input show an unstable or incorrect value?
A6: Common causes include electrical interference, incorrect signal range selection, poor grounding, loose wiring, or an incompatible sensor. Check the signal voltage at the input terminal and confirm that the program uses the correct input configuration. For longer sensor cables, appropriate screened cable and grounding practices can help reduce interference.
Q7: Can the SR2B202BD retain its program after a power interruption?
A7: Yes. The relay has built-in memory backup designed to retain the program for up to 10 years at 25°C under specified conditions. After power returns, verify the program status, clock settings, input states, and output behavior before allowing the controlled equipment to resume automatic operation.
Q8: What should be checked if an output fails to switch a connected device?
A8: Check the program logic, input conditions, output wiring, load polarity, and load current. Confirm that the connected device is compatible with a 24 V DC transistor output and that the output is not being overloaded. If the problem persists, isolate the power supply before inspecting wiring or replacing components.
Schneider SR2B202BD 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.
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The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
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