Triconex 3625 Key features
Triple Modular Redundancy (TMR): Ensures fail-safe voting and high reliability.
Supervised Outputs: Monitors field circuits with internal loopback diagnostics.
High Isolation: 1.5 kV point-to-point isolation reduces fault risk.
Robust Load Handling: High continuous current capacity with surge tolerance.
Status Feedback: Per-channel LEDs for ON/OFF status, module FAULT and LOAD alerts.
Performance comparison
Parameter | 3625 | 3624 | 3623 |
| Channels | 32 supervised outputs | 16 supervised outputs | 16 supervised, opto |
| TMR Redundancy | Yes | Yes | Yes |
| Supervision | Yes | Yes | Yes |
| Continuous Current | 1.7 A/channel | ~1.7 A/channel | ~1.7 A/channel |
| Typical Use Case | Large scale shutdowns | Smaller shutdown loops | General safety outputs |
The 3625 module offers 32 supervised digital outputs with TMR redundancy. Other Triconex output modules (e.g., 3623, 3624) offer fewer points or non-supervised variants for less critical applications.
Typical cooperation cases
Petrochemical Refinery (USA):
Used in emergency shutdown control loops to ensure plant safety. Its TMR reliability and supervised diagnostics reduced unscheduled shutdowns.
Power Generation Plant (Europe):
Employed for turbine trip systems; 32-channel outputs allowed flexible integration of additional shutdown devices.
Pharmaceutical Plant (Asia):
Installed for cleanroom safety interlocks; compact size and supervised outputs ensured compliance with stringent process safety standards.
Oil & Gas Offshore Platform (Middle East):
Deployed in hazardous offshore modules to control emergency shutdown valves. The module’s rugged design and isolation were crucial in corrosive marine environments.
