TRICONEX 0903‑164‑7921 SIS I/O Module for Oil & Gas ESD Safety Loop
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Warranty： 365 days
Quality: Original module
Condition： New / Used
Warehouse: Spot
Delivery time: Shipped in 3 days after payment
Mail： 3598571032@qq.com
Phone/Wechat/Whatsapp：+86 15339539190
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Details
Product Overview
TRICONEX 0903‑164‑7921 is a safety I/O module dedicated for TRICONEX Tricon Safety Instrumented System (SIS). Built on TMR Triple Modular Redundant fault‑tolerant architecture, TRICONEX 0903‑164‑7921 acts as the critical interface between field sensors, actuators and safety controller for signal acquisition, processing and built‑in self‑diagnosis. Certified for SIL3 safety level, it is widely deployed in safety‑critical loops such as ESD emergency shutdown and fire & gas detection. This part is obsolete from original manufacturer. Available stock includes new surplus units and refurbished pulled‑out spare parts for legacy SIS system replacement and project sourcing.
Technical Specifications
| Item | Specifications |
|---|---|
| Model | 0903‑164‑7921 |
| Brand | TRICONEX (Schneider Electric) |
| Product Type | SIS Safety I/O Module |
| Architecture | TMR Triple Modular Redundant Fault‑Tolerant |
| Safety Level | SIL3, compliant with IEC61508 |
| Power Supply | Powered by Tricon chassis backplane |
| Operating Temperature | -20℃ ~ +70℃ |
| Storage Temperature | -40℃ ~ +85℃ |
| Humidity | 5‑95%RH, non‑condensing |
| Mounting | Rack slot‑in, compatible with Tricon series chassis |
| Diagnostics | Open‑circuit, short‑circuit, out‑of‑range loop diagnosis, module self‑test |
| Product Status | OEM Obsolete, new surplus stock & refurbished spare parts available |
| Compatible System | TRICONEX Tricon SIS Safety Instrumented System |
| Application | ESD safety interlock maintenance for chemical, refinery, oil‑gas & power plant |
Key Features
Original TRICONEX 0903‑164‑7921 SIS I/O module with TMR triple‑modular‑redundant design, single‑point fault will not interrupt system operation.
SIL3 safety approval for ESD emergency shutdown and safety interlock critical loops.
Comprehensive built‑in diagnostics for field loop fault detection, simplify site troubleshooting.
Rack slot‑in installation, supports hot‑swap online replacement without system shutdown.
Essential spare part for maintenance of legacy Tricon SIS hardware platform.
Application
Petroleum refinery, chemical plant, natural‑gas facility, thermal power plant for TRICONEX Tricon SIS / ESD safety interlock system.
