Schneider SR3B261BD Modular Intelligent 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 |
|---|---|
| Brand | Schneider Electric |
| Model Number | SR3B261BD |
| Product Series | Zelio Logic |
| Product Type | Modular Intelligent Relay |
| Rated Supply Voltage | 24 V DC |
| Supply Voltage Range | 19.2–30 V DC |
| Number of Digital Inputs | 16 |
| Number of Analog Inputs | 6 |
| Number of Outputs | 10 relay outputs |
| Digital Input Voltage | 24 V DC |
| Analog Input Range | 0–10 V / 0–24 V |
| Relay Output Voltage | 24–250 V AC / 5–30 V DC |
| Output Contact Type | Normally open (NO) relay contacts |
| Output Current | Up to 8 A for 8 outputs and 5 A for 2 outputs, subject to load conditions |
| Maximum Supply Current | 190 mA without extension; 300 mA with extensions |
| Power Dissipation | 6 W without extension; 10 W with extensions |
| Display | Integrated LCD display |
| Programming Languages | Ladder Logic (LD) and Function Block Diagram (FBD) |
| Program Capacity | Up to 240 ladder logic lines or 500 FBD lines, depending on configuration |
| Cycle Time | 6–90 ms |
| Clock Function | Built-in real-time clock |
| Program Backup | Up to 10 years at 25°C |
| Communication Interface | Serial communication interface for programming |
| Mounting Type | DIN rail mounting |
| Protection Rating | IP40 front panel; IP20 terminals |
| Operating Temperature | -20°C to +55°C, subject to installation conditions |
| Dimensions | 124.6 × 107.6 × 59.5 mm |
| Weight | 0.4 kg |
FAQ
Q1: What is the main function of the Schneider Electric SR3B261BD intelligent relay?
The SR3B261BD is a programmable smart relay in the Zelio Logic series. It provides basic automation control for machines, electrical equipment, and small industrial processes. Users can program logic to process input signals, execute control sequences, and operate connected devices through its relay outputs.
Q2: What power supply does the SR3B261BD require?
The relay operates on a nominal 24 V DC supply, with an allowable range of 19.2–30 V DC. The power supply must remain within this range during normal operation. Incorrect polarity or unstable voltage can cause startup problems or unreliable control performance.
Q3: How many inputs and outputs does the SR3B261BD provide?
The unit has 16 digital inputs, 6 analog inputs, and 10 relay outputs. This combination supports applications involving push buttons, switches, compatible sensors, contactors, and other control devices. Confirm the terminal assignments and electrical characteristics before connecting field equipment.
Q4: What programming methods are supported by the SR3B261BD?
The SR3B261BD supports Ladder Diagram (LD) and Function Block Diagram (FBD) programming. Ladder logic is suitable for relay-style control sequences, while FBD allows users to combine functional blocks for more structured control tasks. The program must be developed and transferred using compatible Zelio Logic programming tools.
Q5: What types of sensors can be connected to the analog inputs?
The analog inputs support voltage signals in the 0–10 V and 0–24 V ranges, depending on the input configuration. Suitable devices may include voltage-output sensors and transmitters. Check the input terminal specifications and sensor output range before wiring. Current-loop sensors such as 4–20 mA devices may require an appropriate external interface.
Q6: What should I check if the SR3B261BD does not start?
First, measure the DC supply voltage and confirm that it remains within the specified operating range. Then inspect the power terminals, wiring polarity, and connections for looseness or damage. If the display remains blank despite a correct supply, disconnect the unit safely and investigate possible internal faults or wiring-related short circuits.
Q7: Why might the relay outputs fail to switch connected equipment?
Possible causes include incorrect program logic, input signals that do not meet the required switching thresholds, damaged relay contacts, or wiring errors. Check the program status and input indicators first, then verify the output terminal connections and load requirements. Inductive loads should have suitable suppression to reduce electrical stress on the relay contacts.
Q8: Can the SR3B261BD be expanded with additional I/O modules?
The Zelio Logic modular system supports compatible expansion modules, allowing additional I/O functionality when the configuration permits. The SR3B261BD supply current and power dissipation increase when extensions are connected. Before adding a module, confirm compatibility, expansion limits, power requirements, and the correct installation procedure in the product documentation.
Schneider SR3B261BD Modular Intelligent 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.
