Description
Product Overview
TRICONEX D28799-005 is an original safety system spare component designed for TRICONEX Tricon Triple Modular Redundancy (TMR) SIS (Safety Instrumented System). The TRICONEX D28799-005 serves as a critical replacement spare part for safety interlock, emergency shutdown (ESD), fire & gas protection systems in high-risk industrial plants. Built for SIL3 safety integrity applications, TRICONEX D28799-005 works within the Tricon TMR architecture to maintain fault-tolerant control and eliminate single-point failure risks. As a widely stocked TRICONEX spare part, TRICONEX D28799-005 helps plant engineers quickly replace worn or failed components to reduce unplanned downtime for oil & gas, petrochemical, power generation and refinery facilities.

Key Features of TRICONEX D28799-005
- Original OEM spare part compatible with TRICONEX Tricon TMR SIS safety controller platform
- Designed for SIL3 functional safety applications, compliant with IEC 61508 international safety standard
- High reliability industrial grade hardware, built to withstand harsh industrial control cabinet environment
- Seamless replacement for original failed unit; simple installation inside Tricon rack chassis
- Supports the TMR 2-out-of-3 voting logic of the TRICONEX safety system
- Rigorous factory testing before shipment, stable performance for continuous safety interlock operation
- Suitable for emergency shutdown (ESD), burner management and fire & gas protection systems
Technical Specifications | TRICONEX D28799-005
| Item | Parameter |
|---|---|
| Model | TRICONEX D28799-005 |
| Brand | TRICONEX (Invensys / Schneider Electric) |
| Product Type | Tricon SIS Safety System Spare Component |
| Applicable System | TRICONEX Tricon TMR Safety Instrumented System |
| Safety Integrity Level | SIL3 rated, IEC 61508 compliant |
| Mounting | Installed inside standard Tricon rack chassis |
| Operating Voltage | 24 VDC (Tricon SIS standard power supply) |
| Operating Ambient Temperature | -20℃ ~ +70℃ |
| Storage Temperature | -40℃ ~ +85℃ |
| Relative Humidity | 5% to 95% non-condensing |
| Anti-interference | Industrial EMC protection, suitable for control cabinet environment |
| Application | ESD emergency shutdown, fire & gas system, boiler/turbine safety interlock |
| Condition | Original New / Refurbished available |
| Warranty | 12 months |
Application Scenarios
TRICONEX D28799-005 is a core spare component for TRICONEX Tricon SIS safety instrumented systems. TRICONEX D28799-005 is deployed in oil and gas pipelines, petrochemical reactors, refineries, thermal power plants and chemical factories. In emergency shutdown (ESD) and fire & gas protection loops, TRICONEX D28799-005 maintains the integrity of safety protection. When original components fail, TRICONEX D28799-005 can be used for direct replacement to restore the TMR safety system function and avoid costly plant shutdown accidents.
Packaging & Shipping
TRICONEX D28799-005 is packed with anti-static foam and export carton to prevent electrostatic damage during international transportation. We support DHL, FedEx, UPS, air freight and sea freight worldwide delivery. Every TRICONEX D28799-005 will be fully inspected and tested before shipment. Test report can be provided upon request.










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