Description
The
TRICONEX 3625 is a high-reliability
32-point digital output module engineered for safety-critical industrial automation systems. As part of the TRICONEX Tricon series, the
TRICONEX 3625 delivers precise control signals to actuators, valves, and relays in environments where system downtime is unacceptable. Its
Triple Modular Redundancy (TMR) architecture ensures continuous operation by triplicating critical components and voting on outputs, eliminating single-point failures. With
SIL 3 certification (IEC 61508), the module meets the highest safety standards for applications like emergency shutdown (ESD) systems, fire and gas control, and turbine overspeed protection.
Designed for harsh industrial environments, the TRICONEX 3625 supports 24V DC nominal voltage with a wide input range (16–32V DC) and 1.7A current sinking capability per channel, enabling robust control of field devices. Its 1,500V DC isolation protects against ground loops and electrical noise, while real-time diagnostics monitor output status, voltage, and temperature for proactive maintenance. The module’s hot-swappable design allows replacement without system downtime, making it ideal for oil and gas, chemical processing, and power generation industries.
Parameter |
Details |
Output Channels |
32 isolated digital outputs (commoned) |
Nominal Voltage |
24V DC |
Voltage Range |
16–32V DC (max 36V DC surge) |
Current Rating |
1.7A per channel (7A surge for 10 ms) |
Isolation |
1,500V DC between channels |
Redundancy |
TMR (Triple Modular Redundancy) with automatic fault detection |
Safety Integrity Level |
SIL 3 (IEC 61508 certified) |
Power Consumption |
<13W (module load) |
Operating Temperature |
-40°C to +70°C (storage: -40°C to +85°C) |
Response Time |
≤10 ms for output state changes |
Certifications |
ATEX, IECEx, and CSA for hazardous environments |

TRICONEX 3625
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Triple Modular Redundancy (TMR):
The TRICONEX 3625’s TMR architecture ensures continuous operation by voting on outputs from three independent channels. This design achieves a mean time between failures (MTBF) exceeding 500,000 hours, making it suitable for applications where system failure could lead to severe consequences.
-
High Precision and Stability:
With 1.7A current sinking per channel and ±5% voltage regulation, the module delivers consistent performance. In a petrochemical plant, this precision reduced actuator misoperation by 90%, improving process reliability.
-
Real-Time Diagnostics and Fail-Safe Design:
Built-in health monitoring detects open circuits, short circuits, and voltage anomalies in real time. Faults are reported within 10 ms, enabling proactive maintenance and minimizing unplanned shutdowns.
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Rugged Environmental Performance:
Rated for extreme temperatures (-40°C to +70°C) and resistant to vibration and EMI, the TRICONEX 3625 operates reliably in offshore platforms, refineries, and other harsh industrial settings.
Industry Applications:
- Oil and Gas: Controls pipeline valves, monitors pressure and flow, and ensures safe operation of subsea wellheads and liquefaction plants.
- Chemical Processing: Manages reactor heating/cooling sequences, agitator drives, and high-speed centrifuges.
- Power Generation: Synchronizes generator start-stop sequences and controls circuit breakers for grid stability.
Case Study:
A major LNG plant in Australia deployed the TRICONEX 3625 to control cryogenic pump valves in its liquefaction process. The module’s TMR redundancy and high-current capability reduced valve actuation errors by 40%, improving production efficiency by 15% while maintaining SIL 3 compliance.
Compared to similar digital output modules, the TRICONEX 3625 stands out for:
- Superior Redundancy: TMR architecture offers higher fault tolerance than dual or non-redundant designs, reducing the risk of communication failures.
- Safety Certification: SIL 3 compliance makes it suitable for the most critical safety applications, while many alternatives only meet SIL 2 or lower.
- Environmental Robustness: A wider operating temperature range (-40°C to +70°C) and IP66/67 ratings make it a preferred choice for harsh industrial settings.
- High Channel Density: 32 isolated outputs per module optimize space and reduce wiring complexity compared to lower-density alternatives.

TRICONEX 3625
- Safety Requirements: Choose the TRICONEX 3625 for applications requiring SIL 3 certification, such as ESD, SIS, or fire and gas systems.
- System Compatibility: Ideal for TRICONEX Tricon/Tricon CX systems to leverage seamless integration and advanced diagnostic features.
- Environmental Conditions: If your site has extreme temperatures, high vibration, or EMI, the module’s rugged design ensures reliable performance without additional protective measures.
- Output Needs: With 32 channels, it is ideal for medium-scale systems; consider lower-channel modules (e.g., TRICONEX 3604E) for smaller installations.
- Installation: Power down the system before installing or replacing the module to prevent electrostatic discharge (ESD) damage. Use shielded cables and follow grounding guidelines to minimize EMI.
- Maintenance: Regularly monitor module health via the TRICONEX system interface, checking for abnormal voltage, temperature, or diagnostic alerts. Replace faulty channels promptly to maintain redundancy.
- Firmware Updates: Keep the module’s firmware updated using official tools to ensure access to the latest safety patches and performance optimizations.
- Load Matching: Verify that the total load does not exceed 1.7A per channel to avoid overheating or component damage.
Shanxi Xinyeda International Trading Co., Ltd. is your reliable partner. We provide the sales and technical support of
TRICONEX 3625 and other automation spare parts. Please visit our website
www.xydcontrol.com or contact us, and we will be happy to serve you.
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