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Siemens 6ES7 331-7SF00-0AB0 SIMATIC S7-300 SM 331 Ex Thermocouple & RTD Analog Input Module (MINOR BROKEN)
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Siemens 6ES7 331-7SF00-0AB0 SIMATIC S7-300 SM 331 Ex Thermocouple & RTD Analog Input Module (MINOR BROKEN)

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Availability & Commercial Pricing
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Surplus and high-value automation controllers are quoted dynamically based on exact condition and global express logistics. Receive formal pricing within 2 business hours.

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• Global Air Freight via DHL / FedEx / Aramex
  • Intrinsically Safe Ex Input Channels: Certified for direct connection to temperature sensors located in explosive hazardous areas (Zone 0/1/2, Class I Div 1).

  • Flexible Sensor Support: Configurable for up to 8 thermocouple inputs or 4 RTD (Pt100/Ni100) resistance thermometer inputs.

  • PTB & Diagnostic Capable: Features official PTB testing certification alongside comprehensive channel-level diagnostics and wire-break detection.

  • Galvanic Isolation: High-grade optical and electrical isolation protects internal SIMATIC S7-300 backplane logic from field transients.

  • Standard S7-300 Backplane Mounting: Fits directly into standard S7-300 DIN rail slots using a standard 20-pin front connector interface.

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100% Genuine
Factory OEM Verified
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Express Dispatch
India, UAE & Global
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2-Hour RFQ
Plant Engineers Desk
Manufacturer / Brand Siemens
Part Number / MPN PLC-767
Category Classification PLC & Automation
Condition Status Used Clean
Testing & QA Inspection 100% Bench Tested, Visual Inspection & Power-On Verified
Packaging Type Anti-Static Industrial Sealed ESD Box / Factory Box
Dispatch Hubs Mumbai Central Hub (India) & Sharjah/Dubai Logistics Hub (UAE)

Additional Technical Attributes



  • Manufacturer / Brand: Siemens




  • Model / Part Number: 6ES7331-7SF00-0AB0 (6ES7 331-7SF00-0AB0)




  • Product Series: SIMATIC S7-300 / SM 331 Ex Platform




  • Product Type: Intrinsically Safe Analog Input Module (Temperature)




  • Input Channels: 8 AI Thermocouples / 4 AI RTD (Pt100, Pt200, Ni100, etc.)




  • Hazardous Area Certification: Ex II (1) G [Ex ia] IIC / PTB Tested




  • Resolution: 15-bit + sign




  • Diagnostic Functions: Wire break detection, overflow/underflow, group error LED




  • Front Connector: 1x 20-Pin Front Connection Block




  • Supply Voltage: 24V DC (Backplane / Module Load)




  • Mounting Type: SIMATIC S7-300 DIN Rail Backplane Mount




  • Condition: Surplus / Used (MINOR BROKEN)



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