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Product Overview
The TRICONEX 3451 is a solid-state relay output module engineered for industrial automation systems, particularly suited for non-critical applications where reliable signal switching is essential. As part of TRICONEX’s trusted I/O module lineup, the 3451 provides 32 isolated output points grouped in pairs, enabling precise control of field devices such as annunciator panels, status indicators, and low-power actuators. Unlike TRICONEX’s TMR (triple modular redundancy) modules designed for safety-critical environments, the 3451 focuses on cost-effective, high-reliability performance in non-safety-related operations, ensuring seamless integration with TRICONEX Tricon and TriconEX systems.
With a nominal input voltage of ±24V DC and a wide operational range of ±30V DC, the TRICONEX 3451 adapts to fluctuating power conditions while maintaining stable output signals. Its solid-state relay technology eliminates mechanical wear, offering longer lifespan and reduced maintenance compared to traditional electromechanical relays. The module’s diagnostic capabilities, including continuous loop-back verification of relay operation, allow real-time monitoring of channel health, minimizing downtime and enhancing system predictability. Whether used in manufacturing lines, power distribution systems, or process control setups, the 3451 delivers consistent performance in harsh industrial environments, withstanding temperatures from -40°C to +70°C and humidity levels up to 95% non-condensing.
Technical Specifications
| Product model | 3451 |
|---|---|
| Manufacturer | TRICONEX |
| Product type | Solid-State Relay Output Module |
| Input voltage | ±24V DC (operational range: ±30V DC) |
| Output current per channel | 0.5A (nominal), 0.7A (maximum overcurrent) |
| Number of channels | 32 points, commoned in pairs |
| Electrical isolation | 500V DC (functional to protective earth), 800V DC (functional to logic earth) |
| Physical dimensions | 4.4 cm (W) x 18.8 cm (H) x 21.8 cm (D) |
| Weight | 1.38 kg |
| Interface type | Screw terminal block |
| Working environment | Temperature: -40°C to +70°C; Humidity: 5% to 95% (non-condensing) |
| Place of origin | United States |
| Product design | Non-triplicated, hot-swappable |
| Maximum switching power | 15W (resistive load) |
| Fuses | 0.75A fast-acting (one per output channel) |
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Related products
- TRICONEX 3401: A digital output module with 16 channels and 3A per channel current capacity, designed for safety-critical applications requiring higher power delivery, such as solenoid valves in oil refineries.
- TRICONEX 3311S2: A digital input module that pairs with 3451 to form a complete I/O loop, collecting sensor data and triggering 3451 outputs in non-critical control sequences.
- TRICONEX 8312: A redundant power supply module ensuring stable 24V DC power to 3451, critical for uninterrupted operation in facilities with unreliable power grids.
- TRICONEX 9662-810: A communication module enabling 3451 to share status data with SCADA systems, supporting remote monitoring of annunciator panel operations.
- TRICONEX 3625: A digital input module with 32 channels, serving as an alternative to 3311S2 in applications requiring simultaneous data collection for 3451-controlled devices.
Main features and advantages
Solid-state reliability: The TRICONEX 3451 employs solid-state relay technology, eliminating mechanical contacts prone to wear and tear. This design ensures consistent switching performance over 10 million operations, reducing replacement costs and downtime in non-critical systems like building automation or conveyor belt controls.
Diagnostic transparency: Built-in loop-back verification continuously monitors relay operation, flagging faults such as open circuits or voltage irregularities. Status LEDs for each channel provide instant visual feedback, simplifying troubleshooting and maintenance in industrial settings where quick issue resolution is vital.
Wide voltage tolerance: With a ±30V DC operational range, the 3451 accommodates voltage fluctuations common in aging industrial power systems, ensuring stable output signals to devices like annunciator panels in chemical plants or water treatment facilities.
Hot-swappable design: The module supports online replacement without powering down the entire system, minimizing disruptions during maintenance. This feature is particularly valuable in continuous-process industries like food manufacturing, where downtime directly impacts production efficiency.
Compact footprint: Measuring just 4.4 cm in width, the 3451 optimizes rack space in control cabinets, making it ideal for retrofitting older systems or integrating into modular automation setups with space constraints.
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Installation and maintenance
Pre-installation preparations: Verify compatibility with TRICONEX Tricon/TriconEX chassis and ensure the input voltage matches the 3451’s ±24V DC requirement. Clean the mounting area to prevent dust accumulation, which can hinder heat dissipation. Inspect terminal blocks for bent pins and torque connections to 0.5 N·m to avoid loose wiring.
Maintenance suggestions: Conduct quarterly visual inspections of status LEDs to identify faulty channels. Use a multimeter to verify output voltage stability and check fuse integrity. Wipe the module’s surface with a dry cloth to remove dust, ensuring proper airflow. In high-humidity environments, monitor for condensation and ensure adequate ventilation. Replace modules showing signs of physical damage or erratic behavior to maintain system reliability.
Application fields
The TRICONEX 3451 excels in non-safety-critical applications across diverse industries:
- Manufacturing: Controls status indicators on production line dashboards, signaling machine malfunctions or material shortages to operators in real time.
- Energy: Triggers alarms in power plant substations by activating annunciator panels during minor equipment fluctuations, allowing proactive maintenance before issues escalate.
- Water treatment: Switches solenoid valves in non-critical bypass lines, ensuring continuous water flow during routine filter cleaning without disrupting primary treatment processes.
- Building automation: Powers low-voltage relays for HVAC zone dampers, adjusting airflow based on occupancy sensors in office buildings or warehouses.
- Transportation: Manages platform indicator lights in metro systems, guiding passengers during routine service changes while maintaining safety through separate critical control loops.
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Product guarantee
Our company offers a one-year quality warranty for the TRICONEX 3451, covering hardware defects unrelated to misuse or environmental damage. During the warranty period, defective modules will be replaced promptly to minimize operational downtime. For urgent orders or discontinued models, our global supply chain network ensures rapid fulfillment of scarce parts, supported by 24/7 technical assistance. Established in 2007, our company specializes in distributing industrial control components, stocking a vast inventory of TRICONEX modules—including rare and obsolete models—to meet immediate customer needs. With 17 years of expertise, we guarantee reliable solutions that uphold the highest standards of performance and durability.
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
