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Product Overview
The TRICONEX 8312 is a vital safety relay module within TRICONEX’s safety instrumented system (SIS) portfolio, engineered to enhance the integrity of safety-critical operations in industrial environments. As a core component, TRICONEX 8312 specializes in translating safety signals from the SIS controller into actionable commands for field devices such as emergency shutdown valves, alarms, and isolation systems, ensuring that safety functions are executed precisely when needed. This module is part of TRICONEX’s renowned fault-tolerant architecture, designed to meet the most stringent global safety standards, making it a cornerstone in systems where failure could lead to catastrophic consequences.
TRICONEX 8312 serves as a critical link between the safety logic solver and the physical process, providing reliable signal amplification and isolation to prevent interference from electrical noise or voltage spikes. Its design prioritizes fail-safe operation, meaning that in the event of a module malfunction, it defaults to a safe state—such as de-energizing a valve—to minimize risk. Whether integrated into a new SIS installation or retrofitted into an existing system, TRICONEX 8312 delivers consistent performance, reinforcing TRICONEX’s reputation for robust safety solutions in high-risk industries.
Technical Specifications
| Product model | TRICONEX 8312 |
|---|---|
| Manufacturer | TRICONEX |
| Product type | Safety relay module |
| Physical dimensions | 165 mm (length) x 102 mm (width) x 32 mm (height) |
| Weight | 310 grams |
| Place of origin | United States |
| Output type | 4 normally open (NO) safety relays |
| Maximum switching voltage | 250V AC/DC |
| Maximum switching current | 5A per relay |
| Operating temperature range | -20°C to 60°C |
| Power supply | 24V DC ±10% |
| Isolation rating | 2.5kV (input to output) |
| Certifications | IEC 61508 (SIL 3), UL 508, ATEX, IECEx |
| MTBF (Mean Time Between Failures) | 1,200,000 hours |
| Vibration resistance | 5-500 Hz, 5 g peak |
TRICONEX 8312
Related products
- TRICONEX 8310: A predecessor to TRICONEX 8312 with 2 safety relays instead of 4, suitable for smaller-scale safety applications requiring fewer output channels.
- TRICONEX 3625: A redundant power supply module that ensures TRICONEX 8312 receives stable 24V DC power, critical for maintaining safety relay functionality during power fluctuations.
- TRICONEX 2651: The main processor module in TRICONEX SIS, which sends safety commands to TRICONEX 8312 to activate field devices based on real-time process data.
- TRICONEX 4351B: A digital input module that collects sensor data (e.g., pressure, temperature) and transmits it to the 2651 processor, which then uses TRICONEX 8312 to execute corresponding safety actions.
- TRICONEX 4416: A high-speed communication module that enables TRICONEX 8312 to share status updates with remote monitoring systems, enhancing visibility into safety system performance.
- TRICONEX 3700A: A rack assembly designed to house TRICONEX 8312 and other TRICONEX modules, providing mechanical stability and backplane connectivity for seamless signal transmission.
- TRICONEX 7400: Configuration software used to program safety logic, including the activation parameters for TRICONEX 8312, ensuring alignment with site-specific safety requirements.
Main features and advantages
SIL 3 certification: TRICONEX 8312 is certified to IEC 61508 SIL 3, the highest safety integrity level for industrial safety systems. This certification confirms its ability to perform safety functions with a very low probability of failure, making it suitable for applications where even a single fault could result in harm to personnel, equipment, or the environment.
Redundant relay design: The module incorporates dual-coil safety relays with forced-guided contacts, ensuring that any relay failure (such as a welded contact) is immediately detected. This design prevents undetected faults from compromising safety functions, a critical feature in systems where reliability is non-negotiable.
Enhanced electrical isolation: TRICONEX 8312 offers 2.5kV isolation between input signals (from the SIS controller) and output circuits (to field devices), protecting the module from voltage spikes and electrical noise common in industrial environments. This isolation minimizes the risk of signal interference, ensuring that safety commands are transmitted accurately.
High switching capacity: With a maximum switching current of 5A per relay and support for 250V AC/DC, TRICONEX 8312 can directly control a wide range of field devices, including large valves and motor starters, eliminating the need for additional intermediate relays. This simplifies system design and reduces potential points of failure.
Long operational lifespan: Boasting a MTBF of 1,200,000 hours, TRICONEX 8312 delivers exceptional durability, reducing the frequency of replacements and lowering long-term maintenance costs. Its robust construction ensures reliable performance in harsh conditions, including extreme temperatures and mechanical vibrations, making it a cost-effective choice for long-term industrial deployments.
TRICONEX 8312
Installation and maintenance
Pre-installation preparations: Before installing TRICONEX 8312, verify that the TRICONEX rack (e.g., TRICONEX 3700A) is properly grounded and mounted on a stable surface to prevent vibration-related issues. Check that the power supply meets the module’s 24V DC ±10% requirement and that all connecting cables are rated for the module’s voltage and current specifications. Inspect the module for physical damage—such as bent pins or cracks—before installation, as damage can impair functionality. Additionally, confirm that the TRICONEX 8312 is compatible with the system’s firmware version to avoid integration issues.
Installation steps: Align TRICONEX 8312 with the designated slot in the TRICONEX rack, ensuring the backplane connectors match. Slide the module into the slot until it seats firmly, then secure it with the front-panel screws to prevent movement. Connect the input signal cables (from the SIS controller) to the terminal block on the module’s front panel, following the wiring diagram in the user manual. Attach the output cables (to field devices) to the relay terminals, ensuring each connection is tight to avoid resistance buildup. Finally, connect the power cable and verify that the module’s status LED illuminates green, indicating successful power-up.
Maintenance suggestions: To maintain TRICONEX 8312 performance, conduct quarterly visual inspections to check for loose connections, corrosion, or dust accumulation. Clean terminal blocks with a dry, lint-free cloth to remove debris that could cause short circuits. Test relay functionality annually using a multimeter to ensure contacts open and close correctly; replace the module if any relay fails the test. Monitor the status LED during operation—red or flashing lights indicate faults, which should be addressed promptly by consulting the troubleshooting guide. Avoid exposing TRICONEX 8312 to moisture or extreme temperatures beyond its rated range, as this can shorten its lifespan. For firmware updates, follow TRICONEX’s guidelines to ensure compatibility with the rest of the SIS.
Application fields
TRICONEX 8312 is widely deployed in industries where safety is paramount, including oil and gas, chemical processing, power generation, and pulp and paper manufacturing. In oil and gas refineries, it plays a critical role in emergency shutdown systems (ESDs), activating isolation valves to halt the flow of hydrocarbons when hazardous conditions (e.g., excessive pressure or gas leaks) are detected. The module’s fast response time ensures that shutdowns occur within milliseconds, preventing explosions or environmental damage.
In chemical plants, TRICONEX 8312 is integrated into process safety systems to control emergency relief valves and shutdown pumps when toxic or flammable substances exceed safe concentration levels. Its SIL 3 certification ensures compliance with strict regulatory standards (e.g., OSHA, REACH), giving operators confidence in the system’s ability to prevent accidents.
Power generation facilities, including nuclear and fossil fuel plants, rely on TRICONEX 8312 to trigger safety actions such as turbine trips or boiler shutdowns during abnormal operating conditions (e.g., over-speed, low water levels). The module’s high switching capacity allows it to directly control large motorized valves, ensuring rapid response to prevent equipment damage or power outages.
In pulp and paper mills, where high temperatures and chemical use pose constant risks, TRICONEX 8312 manages safety interlocks for digesters and bleaching systems, activating alarms and shutdowns if process parameters deviate from safe ranges. Its durability in harsh environments ensures consistent performance despite exposure to moisture and corrosive fumes, making it an ideal choice for these demanding applications.
TRICONEX 8312
Product guarantee
Our company offers a one-year quality warranty service for the TRICONEX 8312, covering hardware malfunctions not caused by human factors. During the warranty period, if the TRICONEX 8312 exhibits abnormal performance or functional failure, we will provide replacement services to minimize operational downtime. In addition, for discontinued models or urgent demands, our global supply chain network enables us to quickly respond to customers’ procurement needs for scarce spare parts like the TRICONEX 8312, ensuring continuous operation of industrial systems. Our technical support team, with extensive experience in TRICONEX products, is available to assist with installation guidance, troubleshooting, and compatibility checks, ensuring that customers maximize the performance and lifespan of their TRICONEX 8312 modules. With 17 years in the industrial control industry, we are committed to delivering reliable solutions and exceptional service to support our customers’ critical operations.
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
