Triconex 3604E Key features
Triple Modular Redundancy ensures fail-safe voting and continuous output
Non-commoned outputs prevent fault propagation between channels
Each channel has voltage-loopback diagnostics and fast-action fuses
Hot-swappable design supports maintenance without system shutdown
Designed for harsh Class G3 environments with robust isolation


Performance comparison
Parameter | 3604E | 3602E | 3625 |
Output Channels | 16 | 8–16 | 32 |
Max Current per Point | 2 A | 1.7 A | 1.7 A |
Supervision | Yes | Optional | Yes |
Typical Application | Medium shutdown loops | Small control loops | Large shutdown systems |
Summary:
The 3604E offers 16 high-current TMR outputs. The 3625 provides 32 supervised outputs, while the 3602E offers fewer channels for compact.
Typical cooperation cases
North America – Refinery Emergency Shutdown Systems
3604E modules were used to control emergency shutdown valves, ensuring voting and diagnostics prevent spurious tripping.
Europe – Chemical Plant Safety Systems
Integrated into safety racks to drive alarm and shutdown loops; hot-swap capability reduces downtime during maintenance.
Asia – Power Generation Control Systems
Utilized in turbine protection shutdowns; high current outputs support actuator reliability under fault conditions.
Middle East – Offshore Oil Platform Safety
Installed for emergency shutdown systems; rugged design and TMR voting ensure safe operation in marine environments.
