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SKU: 8311

Triconex 8311 Power Supply High Density Module

The Triconex 8311 is a high-density, TMR-compatible power supply module designed for maximum system availability. It delivers stable, redundant power in a compact 2.6kg form factor. Engineered for SIL 3 safety systems, this module provides the rugged reliability and hot-swap capabilities required for mission-critical industrial automation and emergency shutdown systems

Product Overview

The Triconex 8311 serves as a high-density power supply module specifically engineered for the Tricon Triple Modular Redundancy (TMR) system. As a critical component of the Triconex safety-instrumented system (SIS), this module provides the regulated power necessary for the system backplane and I/O modules. It excels in high-reliability environments where continuous operation is mandatory, such as emergency shutdown (ESD) systems and fire and gas (F&G) detection.

Core Functional Capabilities

  • Delivers Triple Redundant Power: The module supports the TMR architecture by providing isolated, redundant power paths. This design ensures that even if one power source fails, the remaining channels sustain full system operation without interruption.
  • Manages Stable Voltage Output: Advanced power management circuits stabilize voltage delivery across fluctuating load conditions. This precision protects sensitive internal processors and prevents logic errors caused by power “sag” or spikes.
  • Withstands Extreme Industrial Environments: Triconex builds the 8311 with a ruggedized chassis that resists moisture, dust, and significant thermal stress. These protective measures ensure the module operates reliably in the harsh conditions typical of petrochemical and power generation facilities.
  • Maximizes Cabinet Space: The high-density design packs substantial power output into a compact footprint. This space-efficiency allows engineers to install more functional I/O within the same rack space, reducing the overall size of the control cabinet.
  • Simplifies System Hot-Swapping: The module supports seamless integration and replacement without powering down the entire system. This “hot-swap” capability allows maintenance teams to replace modules while the plant remains online, significantly reducing scheduled downtime.

Technical Specifications

  • Brand: Triconex (Schneider Electric)
  • Model Number: 8311
  • Module Type: High Density Power Supply Module
  • System Type: TMR (Triple Modular Redundancy)
  • Power Output: Designed for high-wattage backplane support
  • Net Weight: 2.6 kg
  • Dimensions: 6.1 cm x 40.5 cm x 17.6 cm

Industrial Implementation

Safety engineers specify the Triconex 8311 for critical Distributed Control Systems (DCS) and safety-critical applications. It serves as the primary energy source for Tricon racks in refineries, offshore platforms, and nuclear power plants. Because the 8311 module adheres to the strictest safety standards (SIL 3), it provides the foundational reliability required for systems that protect human life and expensive capital assets. Its ability to maintain consistent performance under continuous industrial operation makes it an industry standard for high-integrity power solutions.