The Triconex 8120E is an Enhanced Main Processor module from the Triconex Tricon safety system family (now part of Schneider Electric), designed for use in safety-critical and high-availability industrial control applications. The 8120E executes the control logic for the Tricon system using Triple Modular Redundant (TMR) architecture with voting, ensuring that no single fault can cause a loss of protection or an unsafe output. The module is central to the Tricon architecture, coordinating I/O modules and communicating with the rest of the system while maintaining fault-tolerant operation. Built to the stringent standards required for safety instrumented systems, the 8120E is suited to installation in safety system cabinets in oil and gas, power generation, and petrochemical environments. The “E” designation indicates an Enhanced variant, offering improved performance over earlier main processor versions. For facilities operating Tricon safety systems, stocking a spare 8120E helps maintain safety system availability and supports planned maintenance without compromising protection.
The Triconex 4352B is a Triple Modular Redundant (TMR) communication module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 4352B functions as a Tricon Communication Module (TCM), providing communication interfaces between the Tricon safety system and external systems such as DCS, SCADA, HMIs, and engineering workstations. The 4352B supports multiple communication protocols and physical interfaces, enabling the Tricon system to exchange safety and diagnostic data with supervisory and control networks. The module operates in a TMR architecture, maintaining communication integrity even under single-channel fault conditions. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 4352B delivers reliable, fault-tolerant communication for safety-critical applications. With its hot-replace capability and comprehensive diagnostics, the 4352B supports continuous plant operation and online maintenance.
The Triconex 8312 is a power supply module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 8312 converts plant input power into the regulated voltages required by the Tricon chassis and its safety modules, providing reliable, redundant power to the safety system. The 8312 is designed for high-availability configurations, where two or more power supply modules share the load so that a single module failure cannot interrupt the safety function. The module includes diagnostic monitoring and status reporting that allow the Tricon system to detect power supply faults and annunciate them to maintenance personnel. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 8312 delivers stable, fault-tolerant power for safety-critical applications. With its hot-replace capability, the 8312 supports continuous plant operation and online maintenance.
The Triconex 4351B is a Triple Modular Redundant (TMR) communication module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 4351B functions as a Tricon Communication Module (TCM), providing communication interfaces between the Tricon safety system and external systems such as DCS, SCADA, HMIs, and engineering workstations. The 4351B supports multiple communication protocols and physical interfaces, enabling the Tricon system to exchange safety and diagnostic data with supervisory and control networks. The module operates in a TMR architecture, maintaining communication integrity even under single-channel fault conditions. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 4351B delivers reliable, fault-tolerant communication for safety-critical applications. With its hot-replace capability and comprehensive diagnostics, the 4351B supports continuous plant operation and online maintenance.
The Triconex 3806E is a Triple Modular Redundant (TMR) analog output module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 3806E provides 8 analog output channels that drive field devices such as control valves, positioners, and analog actuators, with three independent output circuits per point and hardware 2-out-of-3 (2oo3) voting for SIL 3 safety applications. The 3806E exchanges output commands with the Tricon main processors through the Tricon backplane and provides per-channel diagnostics that detect open circuits, short circuits, and field wiring faults. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 3806E delivers reliable, fault-tolerant analog output control. With its hot-replace capability and comprehensive diagnostics, the 3806E supports continuous plant operation and online maintenance in demanding safety-critical environments.
The Triconex 3805E is a Triple Modular Redundant (TMR) analog output module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 3805E provides 8 analog output channels that drive field devices such as control valves, positioners, and analog actuators, with three independent output circuits per point and hardware 2-out-of-3 (2oo3) voting for SIL 3 safety applications. The 3805E exchanges output commands with the Tricon main processors through the Tricon backplane and provides per-channel diagnostics that detect open circuits, short circuits, and field wiring faults. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 3805E delivers reliable, fault-tolerant analog output control. With its hot-replace capability and comprehensive diagnostics, the 3805E supports continuous plant operation and online maintenance in demanding safety-critical environments.
The Triconex 3721 is a Triple Modular Redundant (TMR) analog input module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 3721 provides 32 analog input channels that acquire signals from field transmitters and sensors such as pressure, temperature, flow, and level instruments, with three independent input circuits per point and hardware 2-out-of-3 (2oo3) voting for SIL 3 safety applications. The 3721 exchanges input data with the Tricon main processors through the Tricon backplane and provides per-channel diagnostics that detect open circuits, out-of-range signals, and field wiring faults. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 3721 delivers reliable, fault-tolerant analog input acquisition. With its hot-replace capability and comprehensive diagnostics, the 3721 supports continuous plant operation and online maintenance in demanding safety-critical environments.
The Triconex 3704E is a Triple Modular Redundant (TMR) analog input module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 3704E provides 32 analog input channels that acquire signals from field transmitters and sensors such as pressure, temperature, flow, and level instruments, with three independent input circuits per point and hardware 2-out-of-3 (2oo3) voting for SIL 3 safety applications. The 3704E exchanges input data with the Tricon main processors through the Tricon backplane and provides per-channel diagnostics that detect open circuits, out-of-range signals, and field wiring faults. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 3704E delivers reliable, fault-tolerant analog input acquisition. With its hot-replace capability and comprehensive diagnostics, the 3704E supports continuous plant operation and online maintenance in demanding safety-critical environments.
The Triconex 3625A is a Triple Modular Redundant (TMR) digital output module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 3625A provides 16 discrete output channels that drive field devices such as solenoids, relays, pilot valves, and indicator lamps, with three independent output circuits per point and hardware 2-out-of-3 (2oo3) voting for SIL 3 safety applications. The 3625A exchanges output commands with the Tricon main processors through the Tricon backplane and provides per-channel diagnostics that detect open circuits, short circuits, and field wiring faults. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 3625A delivers reliable, fault-tolerant discrete output control. With its hot-replace capability and comprehensive diagnostics, the 3625A supports continuous plant operation and online maintenance in demanding safety-critical environments.
The Triconex 3511 is a Triple Modular Redundant (TMR) analog input module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 3511 provides 8 analog input channels that acquire signals from field transmitters and sensors such as pressure, temperature, flow, and level instruments, with three independent input circuits per point and hardware 2-out-of-3 (2oo3) voting for SIL 3 safety applications. The 3511 exchanges input data with the Tricon main processors through the Tricon backplane and provides per-channel diagnostics that detect open circuits, out-of-range signals, and field wiring faults. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 3511 delivers reliable, fault-tolerant analog input acquisition. With its hot-replace capability and comprehensive diagnostics, the 3511 supports continuous plant operation and online maintenance in demanding safety-critical environments.
The Triconex 3503E is a Triple Modular Redundant (TMR) digital input module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 3503E provides 32 discrete input channels that acquire signals from field devices such as switches, pushbuttons, limit switches, and discrete transmitters, with three independent input circuits per point and hardware 2-out-of-3 (2oo3) voting for SIL 3 safety applications. The 3503E exchanges input data with the Tricon main processors through the Tricon backplane and provides per-channel diagnostics that detect open circuits, short circuits, and field wiring faults. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 3503E delivers reliable, fault-tolerant discrete input acquisition. With its hot-replace capability and comprehensive diagnostics, the 3503E supports continuous plant operation and online maintenance in demanding safety-critical environments.
The Triconex 3481 is a Triple Modular Redundant (TMR) digital output module for the Triconex Tricon safety instrumented system platform (now part of Schneider Electric). The Triconex 3481 provides 16 discrete output channels that drive field devices such as solenoids, relays, pilot valves, and indicator lamps, with three independent output circuits per point and hardware 2-out-of-3 (2oo3) voting for SIL 3 safety applications. The 3481 exchanges output commands with the Tricon main processors through the Tricon backplane and provides per-channel diagnostics that detect open circuits, short circuits, and field wiring faults. Widely deployed in emergency shutdown, fire and gas, and high-integrity pressure protection systems in oil and gas, petrochemical, and power generation facilities, the Triconex 3481 delivers reliable, fault-tolerant discrete output control. With its hot-replace capability and comprehensive diagnostics, the 3481 supports continuous plant operation and online maintenance in demanding safety-critical environments.
