Schneider Electric 140SAI94000S Analogue Safety Input Module – Modicon Quantum Series
When a safety-critical analogue signal chain fails in a process plant — whether it’s a pressure transmitter feeding a burner management system or a temperature loop protecting a reactor — the consequences extend far beyond a simple fault alarm. Without a certified, reliable analogue safety input module at the heart of the safety instrumented system (SIS), undetected dangerous failures can propagate silently until a process excursion or emergency shutdown occurs. The Schneider Electric 140SAI94000S is engineered precisely to eliminate that risk, providing IEC 61508-compliant analogue signal acquisition with the diagnostic coverage and proof-test intervals demanded by SIL-rated loops.
Within the Modicon Quantum platform — Schneider Electric’s flagship high-availability PLC architecture for heavy process industries — the 140SAI94000S occupies the role of the safety-rated analogue front-end. While standard Quantum I/O modules handle regulatory control loops, this module is purpose-built for safety instrumented functions (SIF), making it the preferred choice for oil & gas, petrochemical, power generation, and water treatment facilities that must demonstrate functional safety compliance to IEC 61511 or NFPA 72 standards. Its global installed base across refineries, LNG terminals, and chemical complexes confirms its status as an industry-standard component in safety-critical automation architectures.
Technical Specifications
- Part Number: 140SAI94000S
- Manufacturer: Schneider Electric (formerly Modicon)
- Series: Modicon Quantum Safety I/O
- Module Type: Analogue Safety Input Module
- Platform Compatibility: Modicon Quantum PLC Backplane
- Safety Rating: IEC 61508 SIL-capable
- Signal Type: Analogue input (current/voltage)
- Weight: 360 g
- Condition Available: New, Refurbished, Tested Used
Note: Full electrical specifications (channel count, input range, resolution, isolation voltage, diagnostic coverage) are available in the Schneider Electric 140SAI94000S datasheet. Contact us for the official documentation.
Key Features & Benefits
- Functional Safety Compliance: Designed to meet IEC 61508 requirements, supporting SIL-rated safety instrumented functions without external voting hardware.
- High Diagnostic Coverage: Internal self-diagnostics continuously monitor channel integrity, reducing the probability of dangerous undetected failures (PFDavg).
- Seamless Quantum Integration: Drops directly into the Modicon Quantum backplane — no special adapters or interface modules required, preserving existing rack layouts.
- Analogue Signal Fidelity: High-resolution A/D conversion ensures accurate representation of field transmitter signals, critical for precise safety setpoint evaluation.
- Reduced Proof-Test Burden: Automated diagnostics extend proof-test intervals, lowering maintenance costs and minimizing process interruptions.
- Long-Term Availability: Konmask.com maintains stock of both new and tested-used units to support legacy Quantum safety systems through their full operational lifecycle.
Industry & Equipment Applications
- Oil & Gas: Wellhead control panels, pipeline ESD systems, compressor safety loops
- Petrochemical & Refining: Reactor temperature/pressure SIFs, burner management systems (BMS)
- Power Generation: Turbine protection systems, boiler safety interlocks
- Water & Wastewater: Pump protection, chemical dosing safety loops
- Pharmaceutical & Food: CIP/SIP process safety monitoring, clean-room environmental control
- Mining & Minerals: Conveyor safety systems, crusher protection loops
System Integration & Compatible Parts
The 140SAI94000S is designed for use within the Modicon Quantum Safety PLC architecture. Typical system components used alongside this module include:
- Modicon Quantum Safety CPU modules (e.g., 140CPU67160S, 140CPU67260S)
- Quantum safety power supply modules (e.g., 140CPS11420S)
- Quantum backplane racks (e.g., 140XBP01600, 140XBP01000)
- Modicon Quantum safety digital I/O modules (140SDI95300S, 140SDO95300S)
- Unity Pro Safety / EcoStruxure Control Expert Safety programming software
Contact our engineering team to verify compatibility with your specific rack revision and CPU firmware version before ordering.
Our Quality Assurance Process
Every 140SAI94000S unit shipped from Konmask.com undergoes a structured verification process:
- Visual Inspection: Connector pins, PCB, housing, and label integrity checked against OEM standards.
- Functional Power-On Test: Module is energized and communication with a Quantum backplane is verified.
- Firmware Version Check: Firmware revision is documented and disclosed to the buyer prior to shipment.
- Anti-Static Packaging: Shipped in ESD-safe bags with foam cushioning inside double-wall cartons.
- Traceability Documentation: Test records and serial number logs provided upon request for safety-system audit trails.
How to Order
- Submit an enquiry via the Contact / Request a Quote button on this page.
- Provide your required quantity, acceptable condition (new / refurbished / tested-used), and any firmware or revision requirements.
- Receive a formal quotation with lead time and shipping options within 1 business day.
- Confirm the purchase order — we accept T/T bank transfer, PayPal, and major trade-finance instruments.
- Module is tested, packed, and dispatched with full tracking and commercial invoice / packing list documentation.
Why Choose Konmask.com?
- ✔ Industrial Automation Specialists: Focused exclusively on PLC, DCS, and safety system components — not a generalist electronics distributor.
- ✔ Global Sourcing Network: Access to new, surplus, and refurbished Schneider Electric / Modicon inventory from verified international suppliers.
- ✔ Engineering Support: Our team can assist with cross-referencing, compatibility checks, and system-level procurement.
- ✔ Fast Response: Quotations within 24 hours; expedited shipping available for urgent plant shutdowns.
- ✔ Transparent Condition Grading: Every unit’s condition, firmware, and test results are disclosed before you commit to purchase.
Frequently Asked Questions
Q: Is the 140SAI94000S still in production by Schneider Electric?
A: This module is part of the Modicon Quantum Safety platform. Availability may vary by region. Konmask.com maintains stock of both new and tested-used units. Contact us for current availability and lead times.
Q: What is the difference between 140SAI94000S and standard Quantum analogue input modules?
A: The “S” suffix designates a Safety-rated module certified for use in safety instrumented systems (SIS) per IEC 61508. Standard analogue modules lack the required diagnostic coverage and certification for SIL-rated loops.
Q: Can this module be used in a non-safety Quantum rack?
A: Physically the module fits standard Quantum backplanes, but its safety functions require a compatible Quantum Safety CPU and Unity Pro Safety / Control Expert Safety configuration. Consult your system integrator before mixing safety and standard I/O in the same rack.
Q: Do you provide a warranty?
A: Yes. All units come with a 90-day functional warranty. Extended warranty options are available — please enquire at the time of quotation.
Q: Can you supply the 140SAI94000S datasheet?
A: Yes. Contact support@konmask.com with your enquiry and we will provide the official Schneider Electric technical documentation.
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