TRICONEX 8120E ENHANCED MAIN CHASSIS FRAME
High - Performance TMR Main Chassis for Tricon v11.x Safety - Critical Systems
1. Chassis Core Overview
The Triconex 8120E is a 19 - inch rack - mount enhanced main chassis, the hardware foundation for Tricon v11.x TMR safety systems. It supports up to 5 I/O/communication module sets, a 1000 Mbps high - speed TriBus, and high - performance MP3009 main processors, delivering ultra - fast data synchronization and voting for SIL 3 (IEC 61508) safety instrumented functions (SIFs) in oil & gas, petrochemical, and power generation.
• Core Specs: 19 - inch rack; 5 I/O module sets; 1000 Mbps TriBus (v11.x); 24 V DC redundant power (8311); - 40°C to +70°C; 22.7 kg; SIL 3 compliant
• Key Features: TMR backplane; hot - swappable slots; redundant power bays; TriBus 1 Gbps; backward compatible with legacy Tricon modules

2. TMR Architecture & High - Speed Performance
The 8120E chassis integrates a TMR - designed backplane, enabling 3 - 2 - 1 majority voting across main processors, I/O, and communication modules to eliminate single - point failures. Its 1000 Mbps TriBus (vs. 25 Mbps of 8110) drastically reduces data latency, improving logic execution speed and SOE event capture for high - demand SIS applications.
• TMR Redundancy: Triple - isolated backplane; 3 - 2 - 1 hardware voting; independent diagnostics for each module set
• Performance Boost: TriBus 1 Gbps; supports MP3009 dual - core processor; 10× faster data sync vs. legacy 8110 chassis

3. Module Compatibility & Expansion
The 8120E is fully compatible with Tricon v11.x - optimized modules, including MP3009 main processors, 4351B communication modules, 3721 analog input modules, and 3604E digital input modules. It connects to 8111 expansion chassis via TriBus, supporting up to 14 expansion/remote chassis (total 15 chassis) and remote I/O deployment up to 12 km for large - scale distributed systems.
• Compatible Modules: MP3009, 4351B, 3721, 3604E, 3636R, 8311 redundant power modules
• Expansion: 1 main + 14 expansion/remote chassis; 118 total I/O/communication modules; remote I/O up to 12 km

4. Power & Installation Details
The chassis requires redundant 8311 24 V DC power modules (20 - 32 V DC) for continuous power supply, with overload and short - circuit protection. It supports 19 - inch rack mounting, hot - swappable module replacement without system shutdown, and is designed for harsh industrial environments with - 40°C to +70°C operating temperature and NEMA - rated enclosure options.
• Power: 2× 8311 redundant power bays; 175 W max per power module; 24 V DC (20 - 32 V DC)
• Mechanical: 483mm×178mm×419mm; 22.7 kg; 19 - inch rack mount; - 40°C to +70°C operation
• Maintenance: Hot - swappable modules; LED status indicators; comprehensive backplane diagnostics
Applications & Certifications
Key Applications: Oil & gas ESD, petrochemical reactor protection, power generation turbine control, marine/offshore SIS, burner management systems (BMS)
Safety Certifications: IEC 61508 SIL 3, ATEX, IECEx, CE, UL Listed
Software Compatibility: TriStation 1131 v11.x for programming, configuration, and diagnostics
YMGK Purchase Information
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Technical Documentation | TRICONEX 8120E Enhanced Main Chassis | v11.x Tricon Safety System