Honeywell MC-TSTX03 (51309140-175) Safety Controller Termination Module – Experion PKS Safety Manager Series
When a safety termination module fails in a live process plant, the consequences are immediate and severe: safety logic loses its physical I/O interface, field instruments go blind, and the entire Safety Instrumented System (SIS) risks a spurious trip or, worse, a dangerous undetected failure. In high-stakes environments — oil & gas, chemical processing, power generation — even minutes of unplanned downtime translate into six-figure losses and potential regulatory violations. The Honeywell MC-TSTX03 (Part No. 51309140-175) is the precision-engineered termination module that keeps your safety loop intact, your field wiring organized, and your SIS fully operational.
The MC-TSTX03 occupies a critical position within Honeywell’s Experion PKS Safety Manager platform — one of the most widely deployed Safety Instrumented Systems globally, certified to IEC 61508 SIL 3. As a dedicated termination assembly for the SM series safety controllers, this module provides the structured field-wiring interface that bridges process instrumentation to the safety logic solver. Its 51309140-175 part number designates a specific termination configuration optimized for high-density I/O marshalling in both greenfield installations and brownfield upgrades across thousands of facilities worldwide.
Technical Specifications
- Part Number: 51309140-175
- Model: MC-TSTX03
- Manufacturer: Honeywell Process Solutions
- Series: Experion PKS Safety Manager (SM Series)
- Module Type: Safety Controller Termination Module
- Standard Compliance: IEC 61508, IEC 61511 (SIL 2 / SIL 3 capable system)
- Weight: 700 g (approx.)
- Condition: New / Refurbished / Tested Available — specify on inquiry
Note: Konmask.com does not fabricate or alter specifications. All technical data is based on Honeywell’s published documentation. Contact us for the full datasheet.
Key Features & Benefits
- Plug-and-Play Field Wiring Interface: Structured terminal layout eliminates wiring errors during commissioning and maintenance, reducing human-factor risk in safety-critical loops.
- High-Density I/O Marshalling: Supports compact cabinet design, minimizing footprint in control rooms and marshalling panels without sacrificing accessibility.
- Robust Industrial Construction: Designed to withstand the vibration, temperature cycling, and EMI environments typical of petrochemical and power generation facilities.
- Direct Compatibility with SM Series Safety Controllers: Engineered as an OEM component — no adaptation or modification required, preserving SIL certification integrity.
- Simplified Maintenance & Hot-Swap Support: Modular design allows field replacement without full system shutdown where system architecture permits, minimizing maintenance windows.
- Long Service Life: Built to Honeywell’s industrial-grade quality standards, ensuring reliable operation over extended plant lifecycles.
Industry & Equipment Applications
- Oil & Gas: Upstream wellhead control, midstream pipeline ESD systems, downstream refinery SIS loops
- Chemical & Petrochemical: Reactor safety shutdown systems, pressure relief interlock logic
- Power Generation: Turbine protection systems, boiler management safety loops
- Pulp & Paper / Mining: Process safety interlock panels requiring IEC 61511-compliant SIS
- Water & Wastewater: Critical pump and valve safety interlock systems
- LNG & Terminals: Emergency shutdown (ESD) and fire & gas (F&G) system integration
System Integration & Compatible Parts
The MC-TSTX03 (51309140-175) is designed for use within the Honeywell Experion PKS Safety Manager ecosystem. Compatible and commonly paired components include:
- Honeywell SM Series Safety Controllers (Safety Manager SC)
- Honeywell MC-Series I/O Modules (Digital Input, Digital Output, Analog Input)
- Honeywell Experion PKS C300 Controllers
- Honeywell FTEB / FTE Network Interface Modules
- Associated marshalling cabinets and DIN-rail accessories
Not sure if this part fits your existing system? Send us your cabinet layout or existing part numbers — our engineers will confirm compatibility before you order.
Our Quality Assurance Process
Every Honeywell module shipped from Konmask.com undergoes a rigorous multi-stage verification process:
- Visual Inspection: Physical examination for damage, corrosion, or counterfeit indicators
- Label & Part Number Verification: Cross-referenced against Honeywell’s official part numbering system
- Functional Test (where applicable): Bench-tested on compatible hardware prior to shipment
- Secure Packaging: ESD-safe anti-static packaging with moisture barrier for international shipping
- Traceability Documentation: Test reports and inspection certificates available on request
How to Order
- Submit an Inquiry: Use the contact form or email support@konmask.com with your required quantity and delivery timeline.
- Receive a Quote: Our team responds within 24 hours with pricing, lead time, and availability confirmation.
- Confirm & Pay: Secure payment via T/T (bank transfer), PayPal, or other agreed methods.
- Shipment & Tracking: Fast dispatch via DHL, FedEx, or UPS with full tracking provided.
- After-Sales Support: Technical assistance and warranty support available post-delivery.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation & DCS/SIS Components — not a generalist marketplace
- ✅ Global Supply Network — sourcing from authorized distributors and verified surplus channels
- ✅ Expert Technical Team — engineers who understand your system, not just the part number
- ✅ Fast International Shipping — to North America, Europe, Middle East, Southeast Asia, and beyond
- ✅ Competitive Pricing — transparent quotes with no hidden fees
- ✅ Responsive Support — 24-hour inquiry response, dedicated account management
Frequently Asked Questions
Q: Is the Honeywell MC-TSTX03 51309140-175 in stock?
A: Stock levels vary. Please submit an inquiry for real-time availability. We maintain access to global surplus and distributor networks to source parts quickly.
Q: Can I use this module as a direct replacement in my existing Safety Manager system?
A: Yes, the MC-TSTX03 is an OEM Honeywell part designed for direct replacement within compatible Experion PKS Safety Manager configurations. We recommend verifying your system revision with our engineers before installation.
Q: Do you provide a warranty?
A: Yes. All modules come with a standard warranty period. Extended warranty options are available — contact us for details.
Q: What is the lead time for international orders?
A: Typically 3–7 business days for in-stock items via express courier. Lead times for sourced items vary — we will confirm at the time of quotation.
Q: Can you provide a certificate of conformance or test report?
A: Yes, documentation packages including inspection reports and certificates of conformance are available upon request.
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