ICS Triplex T3120-350A Triple Redundant Safety System Module

Product Description

Model: ICS Triplex T3120-350A ICS Triplex T3120-350A is an I/O module for the T3000 triple modular redundant safety system, a critical spare part for SIS (Safety Instrumented System). It adopts TMR architecture with 2oo3 voting logic for safety loop signal acquisition and control output. The module integrates comprehensive channel self-diagnosis, wire-break detection and fault identification. It supports hot-swap replacement without system shutdown. Certified to IEC61508 SIL3, it delivers reliable safety interlock protection for high-risk processes in petrochemical and power industries. This model is discontinued and mainly supplied as spare part for legacy safety system maintenance.

Technical Specifications

• Model: T3120-350A
• Brand: ICS Triplex (now part of Sensia)
• Series: T3000 Safety Instrumented System
• Architecture: TMR Triple Modular Redundancy, 2oo3 voting
• Safety Integrity Level: SIL3 (IEC61508)
• Power Supply: 24VDC
• Mounting: Rack slot installation
• Features: Channel self-diagnosis, line fault detection, hot swap
• Operating Temperature: 0℃ ~ +60℃
• Storage Temperature: -40℃ ~ +85℃
• Protection: IP20, cabinet installation only
• Certifications: IEC61508, IEC61511
• Lifecycle: Discontinued (EOL)

Applications

1. SIS safety interlock systems for oil, chemical and natural gas plants
2. ESD emergency shutdown protection for thermal power, gas turbines and boilers
3. Process safety monitoring for offshore platforms, refineries and coal chemical plants
4. Over-speed and over-pressure protection for high-pressure compressors and turbine units
5. Maintenance, spare replacement and retrofit of existing T3000 installations

Series Model List

T3120-350A T3110 T3150A T3401 T3419 T3420A T3480 T3800