Schneider STBDDI3425K Basic Numeric Input Kit
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| 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 | STBDDI3425K |
| Product Name | Basic Digital Input Kit |
| Product Series | Modicon STB Distributed I/O |
| Module Model | STBDDI3425 |
| Product Type | Basic Digital Input Kit |
| Number of Digital Inputs | 4 |
| Rated Input Voltage | 24 V DC |
| Input Voltage Range (ON State) | 11–30 V DC |
| Input Voltage Range (OFF State) | -3–5 V DC |
| Maximum Permissible Input Voltage | 30 V |
| Absolute Maximum Voltage | 56 V for 1.3 ms |
| Digital Input Current | 8 mA |
| Guaranteed ON-State Current | ≥ 2.5 mA |
| Guaranteed OFF-State Current | ≤ 1.2 mA |
| Input Logic | Positive logic |
| Input Response Time | 3.5 ms (OFF to ON); 3.8 ms (ON to OFF) |
| Input Filter Time | 3 ms |
| Sensor Supply Current | 50 mA per channel |
| Input Protection | Resistor-limited input protection and reverse-polarity protection |
| Power Protection | Time-delay 5 A fuse integrated in the power distribution module |
| Channel-to-Logic-Bus Insulation | 1500 V for 1 minute |
| Logic Bus Current Consumption | 45 mA at 5 V DC |
| Kit Components | STBDDI3425 module, STBXBA1000 base, STBXTS1100 6-terminal screw connector, STBXTS2100 6-terminal spring-clamp connector |
| Compatible I/O Base | STBXBA1000 |
| Compatible Power Distribution Modules | STBPDT3100 / STBPDT3105 |
| Hot Swapping | Supported with basic NIM configurations |
| Cold Swapping | Supported |
| Status Indicators | Green module status LED (RDY) and four green channel LEDs (IN1–IN4) |
| Mounting | Modicon STB modular I/O system |
| Protection Rating | IP20 |
| Overvoltage Category | Category II |
| Pollution Degree | 2 |
| Operating Temperature | Verify against the applicable product documentation |
| Certifications | CE, UL, CSA, FM Class I Division 2 |
| Dimensions | 18.4 × 125 × 65.1 mm |
| Weight | 0.111 kg |
FAQ
Q1: What is the main function of the Schneider STBDDI3425K?
The STBDDI3425K is a four-channel basic digital input kit for Schneider Electric Modicon STB distributed I/O systems. It receives 24 V DC ON/OFF signals from field devices such as push buttons, limit switches, and compatible sensors. The input states are then made available to the control system for monitoring and automation logic.
Q2: What is the difference between the STBDDI3425K and STBDDI3420K?
The STBDDI3425K is a basic digital input kit that uses positive input logic and has a specified response time of 3.5 ms from OFF to ON and 3.8 ms from ON to OFF. The STBDDI3420K is the standard digital input version and supports positive or negative logic, with different response characteristics. Select the model according to the field signal type and system requirements.
Q3: How many input channels does the STBDDI3425K provide?
The module has four digital input channels, identified as IN1 through IN4. Each channel can monitor a separate field signal. During commissioning, verify each channel individually in the PLC or configuration software to confirm that the physical input corresponds to the intended control logic.
Q4: What input voltage range is required for reliable signal detection?
The module uses a nominal 24 V DC input. An input voltage of 11–30 V DC is recognized as ON, while -3–5 V DC is recognized as OFF. Signals between these ranges may not produce a guaranteed state. Check the sensor output, common wiring, and voltage at the input terminal if the signal is intermittent.
Q5: Which base and power distribution modules are compatible with the STBDDI3425K?
The specified I/O base is STBXBA1000. Compatible power distribution modules include STBPDT3100 and STBPDT3105. Before installation, confirm the network interface module, power distribution arrangement, and overall Modicon STB island configuration to ensure that the kit fits the existing system.
Q6: What should be checked if an input channel remains OFF when the sensor is activated?
Check that the sensor is powered and produces the correct 24 V DC signal. Then inspect the input terminal assignment, field power return, connector seating, and channel status LED. If the voltage at the module is within the ON-state range but the channel remains OFF, check the module configuration and system diagnostics before replacing the hardware.
Q7: Can the STBDDI3425K be hot-swapped while the system is running?
Hot swapping is supported with basic NIM configurations, but this does not mean it is safe or permitted in every installation. Confirm the network interface module configuration and site safety procedures before removing a module. Isolate power whenever required by the equipment design or operating rules, and never disconnect field wiring without assessing the risk to the process.
Q8: What checks should be performed after replacing the STBDDI3425K?
Confirm that the module is seated correctly on the base and that all field connections match the wiring diagram. Restore power according to the site’s commissioning procedure, check the RDY indicator and each channel LED, and test all four input signals. Finally, verify that the PLC displays the correct input states and that no persistent diagnostic faults remain.
Schneider STBDDI3425K Basic Numeric Input Kit 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.
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