TRICONEX 8311 High Density Power Supply Module

TRICONEX 8311 is a dedicated rack-mounted high-density power supply module belonging to Schneider Electric Tricon SIS safety instrumented system 8000 series.

 It supplies stable regulated 24VDC operating power for Tricon main chassis, expansion chassis and remote I/O (RXM) chassis, supporting triple modular redundant (TMR) configuration. 

Equipped with comprehensive internal fault self-diagnosis circuit, it monitors input voltage, output load, overheating and internal abnormality in real time, 

feeds fault alarm signals to system main controller, guarantees uninterrupted power supply for safety interlock, emergency shutdown and protection logic operation. 

It is an indispensable core power spare part for petrochemical, power plant critical safety control system maintenance.

Technical Specifications

Part Number: 8311

Manufacturer: TRICONEX (Schneider Electric)

Series: Tricon 8000 Series SIS System

Type: High Density Redundant Power Supply Module

Input Voltage: 110/220V AC universal input

Output Rated: Isolated regulated 24VDC

System Architecture: TMR triple modular redundancy compatible

Onboard Indicators: Power OK, Fault, Alarm diagnostic LED indicators

Operating Temperature: -20°C ~ +65°C

Humidity: 5%–95% non-condensing

Protection Grade: IP20

Net Weight: Approx. 2.5 kg

Safety Certification: IEC 61508 SIL3, CE, UL

Origin: USA

Key Features

Redundant power design, supports hot-swap replacement without system shutdown, greatly reduces maintenance downtime.

Built-in multi-protection functions including overvoltage, undervoltage, overcurrent, overheat and short-circuit protection to avoid module burnout.

Real-time self-diagnosis function with front panel status LEDs for rapid on-site fault judgment and troubleshooting.

Optimized anti-interference circuit design, stable operation under strong electromagnetic interference environment inside industrial control cabinets.

Standard backplane plug-in structure, fully compatible with Tricon main chassis & expansion chassis, direct plug-and-play replacement.