Triconex 4351B Enhanced Digital Input Module

Description

Triconex 4351B Enhanced Digital Input Module

Product Dimensions：

Product Description

The Triconex 4351B is a high-performance, Triple Modular Redundant (TMR) digital input module designed for use in Tricon safety instrumented systems (SIS). It provides critical digital signal acquisition with exceptional reliability and fault tolerance. The module is specifically engineered for safety-critical applications in industries such as oil & gas, petrochemical, power generation, and industrial automation.

As part of the Triconex system, the 4351B module supports hot-swappable operation and is fully compatible with the Tricon v9 and v10 systems. It enables seamless integration into existing safety systems while maintaining the highest levels of operational integrity.

Product Specifications

Product Advantages

• Triple Modular Redundancy (TMR): Ensures high availability and fault tolerance by using three independent channels to vote on the correct input signal.
• High Diagnostic Coverage: Detects and reports internal faults, input failures, and wiring issues for proactive maintenance.
• Safety Certified: Compliant with international safety standards (IEC 61508 up to SIL 3), making it suitable for safety-critical systems.
• Hot-Swappable: Can be replaced without shutting down the system, improving operational continuity.
• Optical Isolation: Protects the system from electrical noise and voltage spikes.
• Wide Environmental Tolerance: Performs reliably in harsh industrial environments with extreme temperatures and humidity.
• Seamless Integration: Fully compatible with existing Tricon systems, simplifying upgrades and expansions.

Precautions

• Power Supply: Ensure that the 24 V DC power supply meets the specified requirements and is properly grounded.
• Wiring: Use shielded twisted-pair cables for input signal wiring to minimize noise interference. Follow proper grounding practices.
• Configuration: Verify that the module is correctly configured in the Triconex engineering station and matches the field device characteristics.
• Environmental Limits: Do not exceed the operating temperature and humidity limits to prevent performance degradation or damage.
• Handling: Handle the module with care to avoid electrostatic discharge (ESD) damage. Use ESD-safe practices when installing or replacing the module.
• Maintenance: Regularly check diagnostics and system health logs to detect and address potential issues early.

Product Applications

The Triconex 4351B is widely used in industries requiring high levels of safety and reliability:

• Oil & Gas: Emergency shutdown systems (ESD), fire and gas systems (F&G), and process safety systems.
• Petrochemical: Safety instrumented functions (SIF) for critical process control and reactor protection.
• Power Generation: Turbine control, boiler protection, and generator safety systems.
• Industrial Automation: Critical control systems in manufacturing, chemical processing, and batch operations.
• Transportation: Safety systems in pipelines, compressors, and pumping stations.
• Nuclear: Safety-related control and monitoring systems in nuclear power plants.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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