TRICONEX 3721C High-Performance Digital Output Module for Industrial Automation Systems
The TRICONEX 3721C digital output module delivers exceptional reliability and safety for mission-critical industrial control applications. Engineered for demanding environments, this SIL 3-certified module provides 8 isolated SPDT relay channels with 250 mA per-channel capacity, ensuring precise actuator control in process automation, power generation, and hazardous material handling systems.
Key Features
- 8 Channel Relay Outputs (SPDT) – Supports mixed load types with mechanical isolation between channels
- 24 VDC Operating Voltage – Optimized for standard industrial power systems with built-in surge protection
- SIL 3 Functional Safety Certification – Meets IEC 61508 requirements for safety-critical applications
- Modular DIN-Rail Design – Simplifies system integration and hot-swappable maintenance
- Industrial Temperature Range – -20°C to +70°C operational capability with 95% max humidity tolerance
- Electromagnetic Compatibility – Immune to 4 kV ESD and 10 V/m RF interference per IEC 61000-6-2
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand/Model | TRICONEX 3721C |
| Power Requirements | 24 VDC ±15% (45 mA typical) |
| Output Capacity | 8× SPDT relays @ 250 mA/channel |
| Certifications | IEC 61508 SIL 3, FM 3610, CSA C22.2 No. 142 |
| Physical Dimensions | 140 × 100 × 35 mm (5.5 × 3.9 × 1.4 in) |
Application Fields
Engineered for extreme reliability in safety instrumented systems (SIS), the TRICONEX 3721C excels in:
- Petrochemical plant emergency shutdown systems
- Nuclear power plant safety circuits
- Pharmaceutical process control systems
- Offshore drilling platform automation
- Steel manufacturing furnace safety interlocks
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