Product Overview
The Triconex 3664 / 3674 Dual Digital Output Module is engineered to provide dependable control for safety-critical applications. It combines dual redundancy, voltage loopback verification, and advanced diagnostics to ensure maximum reliability without excessive cost. Each channel operates under strict safety logic, applying a 2-out-of-3 voting mechanism that guarantees stable output even under fault conditions. Moreover, its modular architecture supports hot-spare replacement, enabling uninterrupted system performance during maintenance.
Key Functional Highlights
The 3664 and 3674 modules enhance process safety through robust diagnostic and protection features. They continuously monitor every circuit, alerting operators to any operational deviation or hardware anomaly.
Notable Advantages:
- Dual redundancy for increased safety and reliability
- Voltage loopback circuit ensuring accurate output even without load presence
- Comprehensive fault detection including stuck-ON and stuck-OFF alerts
- Hot-spare capability for zero-downtime module replacement
- Mechanical keying prevents incorrect installation
- Field alarms and status indicators for real-time fault visibility
In addition, both models maintain full compliance with ISA-S71.04-1985 Class G3 standards, making them suitable for challenging industrial environments.
Detailed Specifications
| Parameter | 3664 / 3674 Details |
|---|---|
| Nominal Voltage | 24 VDC |
| Voltage Range | 16–30 VDC (Max 36 VDC) |
| Output Points | 32 (commoned) |
| Current Rating | 2A per point, 10A surge for 10 ms |
| Voltage Drop | <1.5 VDC typical |
| Leakage Current | 2 mA maximum |
| Power Consumption | <10 W |
| Point Isolation | ≥1500 VDC |
| Indicators | ON/OFF, Module Status, Field Alarm, Load/Fuse |
| Fuses | Self-protecting, no external fuse required |
| Color Code | Dark Blue |
| Shock Resistance | 10G, ½-sinewave (11 ms) |
| Vibration | 1 mm (5–16 Hz), 0.5G (16–150 Hz) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Airborne Contaminant Class | ISA-S71.04-1985 G3 |
This configuration enables precise switching performance and minimal energy loss, making it ideal for long-term industrial automation systems.
System Integration
The Triconex 3664 / 3674 modules are widely used in power generation, oil and gas, petrochemical, and process automation. They easily integrate with Tricon safety systems, delivering reliable digital output to actuators, solenoids, and relays. In addition, their external termination panel (ETP) simplifies field wiring while ensuring secure electrical isolation for all output points.
Typical Applications Include:
- Safety Instrumented Systems (SIS)
- Emergency Shutdown (ESD) units
- Burner Management Systems (BMS)
- Process and machinery safety control panels
Their proven design allows seamless replacement and maintenance without disrupting plant operations.
FAQ
Q1: Are Triconex 3664 and 3674 modules original and brand new?
Yes, all Triconex 3664 / 3674 Dual Digital Output Modules are 100% new and original, sourced directly from verified manufacturers.
Q2: How fast can the module be delivered?
We maintain ready-to-ship stock, and orders are usually dispatched within 3 days to 2 weeks, depending on quantity. Shipping options include DHL, FedEx, or UPS.
Q3: What if I encounter a functional or quality issue?
You can request a return or exchange within 30 days if the item has any confirmed quality problem.
Q4: Can this module operate without external fuses?
Yes, both models feature self-protecting internal circuits, eliminating the need for external fuses.
Details
| Weight | 1.14 kg |
|---|
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