Schneider SR3XT101BD Discrete I/O Expansion Module
| 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 | SR3XT101BD |
| Product Type | Discrete I/O Expansion Module |
| Product Series | Zelio Logic |
| Main Function | Digital input and output expansion for smart relays |
| Total I/O Points | 10 |
| Digital Inputs | 6 |
| Digital Input Type | Resistive, IEC/EN 61131-2 Type 1 |
| Digital Input Voltage | 24 V DC |
| Digital Input Current | 4 mA |
| Guaranteed ON-State Voltage | ≥ 15 V DC |
| Guaranteed OFF-State Voltage | ≤ 5 V DC |
| Compatible Sensors | 3-wire PNP proximity sensors |
| Input Impedance | 7.4 kΩ or 12 kΩ, depending on input terminal |
| Counting Frequency | Up to 1 kHz |
| Digital 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 4 outputs |
| Minimum Switching Capacity | 10 mA at 12 V |
| Response Time | 10 ms, OFF to ON; 5 ms, ON to OFF |
| Rated Supply Voltage | 24 V DC |
| Supply Voltage Range | 19.2–30 V DC |
| Reverse Polarity Protection | Yes |
| Programming Compatibility | Zelio Logic smart relay system |
| Programming Capacity | Up to 120 ladder logic lines |
| Cycle Time | 6–90 ms |
| Program Memory Backup | Up to 10 years at 25°C |
| Mounting Type | 35 mm DIN rail or screw fixing |
| Connection Type | Screw terminals |
| Terminal Tightening Torque | 0.5 N·m |
| Protection Rating | IP40 front panel / IP20 terminals |
| Operating Temperature | -20°C to +55°C |
| Dimensions | 107.6 x 72 x 59.5 mm |
| Weight | 0.2 kg |
FAQ
Q1: What is the main function of the Schneider Electric SR3XT101BD expansion module?
The SR3XT101BD expands the digital I/O capacity of compatible Zelio Logic smart relays. It provides six digital inputs and four relay outputs, allowing the control system to handle additional sensors, switches, contactors, and other field devices without replacing the main relay.
Q2: Which smart relays are compatible with the SR3XT101BD?
The module is designed for compatible Schneider Electric Zelio Logic SR3 smart relays with a 24 V DC supply, particularly models in the SR3B…BD family. Check the exact base-unit reference and its supported expansion configuration before installation.
Q3: What type of signals can the digital inputs accept?
The six inputs are designed for 24 V DC discrete signals and use resistive Type 1 input characteristics. They can monitor compatible switches and three-wire PNP proximity sensors. Confirm the sensor output type and wiring arrangement before connecting field devices.
Q4: What are the electrical ratings of the four relay outputs?
The module provides four normally open relay outputs. The specified switching voltage range is 24–250 V AC or 5–30 V DC, with a thermal current rating of 8 A across all four outputs. The actual load capacity depends on the load type, switching frequency, and electrical service conditions.
Q5: Can the SR3XT101BD be used to control motors or solenoid valves?
Yes, it can control compatible devices through its relay contacts, provided their voltage and current requirements remain within the output ratings. For motors, high-inrush loads, or frequently switched solenoid valves, an appropriately rated contactor or interposing relay may be necessary to protect the module contacts.
Q6: How should the SR3XT101BD be installed and wired?
Mount the module on a compatible 35 mm DIN rail or use the designated screw-fixing points. Connect it to the supported smart relay and wire the inputs and outputs according to the manufacturer’s connection diagram. Isolate all relevant power sources before wiring, and verify terminal tightness before energizing the system.
Q7: What should I check if the expansion module’s inputs or outputs do not work?
Check the 24 V DC supply, module compatibility, terminal wiring, and input signal levels first. For an input fault, confirm that the sensor provides a suitable 24 V DC signal. For an output fault, inspect the load circuit, protective devices, and relay contacts. Disconnect power before carrying out continuity tests or changing wiring.
Q8: Can the SR3XT101BD be programmed independently?
No. The SR3XT101BD is an expansion module rather than a standalone programmable controller. Its inputs and outputs are managed through a compatible Zelio Logic smart relay. Configure the main relay’s application using compatible programming software, then verify that the expansion I/O addresses and logic are correctly assigned.
Schneider SR3XT101BD Discrete I/O Expansion Module 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.








