Schneider Electric 140DDI35300 24VDC Sink Digital Input Module – Modicon Quantum Series
When a critical digital input module fails on a Modicon Quantum PLC rack, the entire production line goes dark. Sensors stop reporting, interlocks lose their signal path, and operators are left blind to field conditions — triggering unplanned downtime that costs thousands of dollars per hour. The Schneider Electric 140DDI35300 is the precision interface that keeps those 32 field-level signals flowing reliably into your Quantum controller, making it an irreplaceable link between the physical process and the control logic that governs it.
Within the Modicon Quantum family, the 140DDI35300 occupies a high-density, cost-efficient position: 32 sink-type (NPN) digital inputs organized in a 4×8 matrix, rated at 24VDC. It is engineered for demanding industrial environments where signal integrity, noise immunity, and rack-level compatibility are non-negotiable. Globally, the Modicon Quantum platform remains one of the most widely deployed large-scale PLC architectures in process industries, and the 140DDI35300 is among its most specified discrete input cards — found in plants across oil & gas, water treatment, automotive, and power generation sectors.
Technical Specifications
- Part Number: 140DDI35300
- Manufacturer: Schneider Electric
- Series: Modicon Quantum
- Module Type: Digital Input (DC Sink / NPN)
- Input Voltage: 24VDC
- Number of Inputs: 32 (4 groups × 8 channels)
- Input Logic: Sink (NPN)
- Backplane Interface: Modicon Quantum I/O bus
- Weight: 400 g (approx.)
- Compliance: CE, UL (refer to official Schneider Electric datasheet for full certifications)
Note: All specifications above are sourced from publicly available Schneider Electric documentation. Always verify against the official product datasheet before engineering design.
Key Features & Benefits
- High-Density 32-Channel Design: Maximizes rack space utilization — fewer slots consumed per I/O point compared to lower-density alternatives.
- 24VDC Sink (NPN) Compatibility: Directly interfaces with the majority of industrial proximity sensors, limit switches, and pushbuttons wired in NPN configuration.
- 4×8 Channel Matrix: Logical grouping simplifies wiring, diagnostics, and field termination planning.
- Modicon Quantum Native: Plug-and-play compatibility with Quantum racks — no adapter or converter required.
- Robust Industrial Construction: Designed for continuous operation in electrically noisy industrial environments.
- Proven Global Installed Base: Decades of field-proven reliability across critical infrastructure worldwide.
Industry & Equipment Applications
- Oil & Gas: Pipeline valve position feedback, wellhead monitoring, compressor station I/O.
- Water & Wastewater Treatment: Pump status monitoring, level switch inputs, flow detection.
- Automotive Manufacturing: Assembly line conveyor interlocks, robotic cell safety inputs.
- Power Generation & Utilities: Switchgear status, breaker position feedback, turbine control systems.
- Chemical & Pharmaceutical: Reactor interlock systems, batch process discrete I/O.
- Building Automation & Infrastructure: Large-scale HVAC and facility management systems using Quantum PLCs.
System Integration & Compatible Parts
The 140DDI35300 is designed to operate within the Modicon Quantum I/O subsystem. Compatible and commonly paired components include:
- Modicon Quantum CPU modules (e.g., 140CPU65150, 140CPU67160)
- Quantum power supply modules (e.g., 140CPS11420, 140CPS21400)
- Quantum I/O racks (e.g., 140XBP01600, 140XBP01000)
- Quantum remote I/O head adapters (e.g., 140CRA93100)
- Terminal block accessories and field wiring modules compatible with 140DDI series
Contact our technical team at support@konmask.com to verify compatibility with your specific Quantum system configuration.
Our Quality Assurance Process
At Konmask.com, every Schneider Electric module we supply goes through a structured verification process before shipment:
- Source Verification: Modules are sourced from authorized distributors or verified surplus channels with full traceability documentation.
- Visual & Physical Inspection: Each unit is inspected for label authenticity, connector integrity, and absence of physical damage.
- Functional Check: Where applicable, modules undergo power-on and basic functional verification.
- Secure Packaging: Anti-static packaging with moisture protection for safe international transit.
- Documentation: Test records and sourcing documentation available upon request for regulated industries.
How to Order
- Submit your inquiry via our contact form or email support@konmask.com with your required quantity and delivery timeline.
- Our team will confirm stock availability and provide a formal quotation within 1 business day.
- Upon PO confirmation, we arrange quality inspection and prepare export documentation.
- Shipment via your preferred freight method (DHL, FedEx, sea freight, or customer-nominated forwarder).
- Post-delivery support available for installation queries and system integration questions.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- B2B-First Service: Tailored for procurement engineers, MRO buyers, and system integrators who need reliable sourcing partners.
- Global Export Experience: Serving clients across Southeast Asia, the Middle East, Europe, and the Americas with compliant export documentation.
- Technical Pre-Sales Support: Our team can assist with cross-referencing, compatibility checks, and system-level sourcing.
- Transparent Quality Process: Full traceability and inspection documentation available on request.
Frequently Asked Questions
- Q: Is the 140DDI35300 compatible with all Modicon Quantum racks?
- A: Yes, the 140DDI35300 is designed for the standard Modicon Quantum I/O bus and is compatible with all standard Quantum I/O racks. Always verify slot availability and power budget with your system integrator.
- Q: What is the difference between sink (NPN) and source (PNP) input modules?
- A: Sink (NPN) inputs, like the 140DDI35300, are activated when the field device pulls the input signal to ground (0V). Source (PNP) inputs are activated when the device supplies a positive voltage. The 140DDI35300 is specifically for NPN-wired field devices.
- Q: Can Konmask.com supply this module for urgent/emergency requirements?
- A: Yes. Contact us at support@konmask.com or call +0086 19859288691 with your urgency level. We prioritize emergency MRO requests and can arrange expedited shipping where stock is available.
- Q: Do you provide a warranty on the 140DDI35300?
- A: All modules supplied by Konmask.com come with our quality assurance guarantee. Specific warranty terms are provided in the quotation based on module condition (new, refurbished, or tested surplus).
- Q: Can I request a datasheet or test report before purchasing?
- A: Absolutely. We can provide the official Schneider Electric datasheet and our internal inspection report upon request prior to order confirmation.
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Contact: support@konmask.com | +0086 19859288691
