Product Description
Triconex 3721N Analog Input Module
Product Overview
- Description: The Triconex 3721N is an Analog Input Module designed for use in Triconex safety instrumented systems (SIS), part of Schneider Electric’s Triconex product line. It provides 32 differential analog input channels to interface with field devices such as pressure, temperature
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Triconex (Schneider Electric) |
| Series | Triconex Safety Instrumented Systems (SIS) |
| Model/Part Number | 3721N |
| Model Type | Analog Input Module |
| Function | Processes 32 differential analog input signals from field devices |
| Display | Not applicable (no integrated display) |
| Inputs | 32 differential analog inputs (0–5 VDC or 4–20 mA, configurable) |
| Outputs | Digital signals to Triconex controllers via system bus |
| Communication Interfaces | TriBus for TMR communication, connects to Triconex controllers |
| Signal Conditioning | Analog-to-digital conversion, signal isolation, noise suppression |
| Accuracy | ±0.15% of full scale (typical) |
| Redundancy | Supports Triple Modular Redundant (TMR) architecture |
| Diagnostics | Built-in diagnostics, hot-swappable, status monitoring via TriStation 1131 |
| Compatibility | Triconex safety systems (e.g., Tricon, Trident, Tri-GP); requires Tricon v10.4 or later |
| Power Supply | 24 VDC (via Triconex backplane) |
| Power Consumption | 5–10 W (estimated) |
| Environmental Specifications | Operating Temperature: -40°C to +70°C Storage Temperature: -40°C to +85°C Relative Humidity: 5% to 95% non-condensing |
| Enclosure | IP20 (when installed in Triconex chassis) |
| Dimensions | Approx. 150 mm (H) x 50 mm (W) x 200 mm (D) (estimated) |
| Weight | Approx. 0.5–0.7 kg |
| Mounting | Plugs into Triconex chassis |
| Certifications | CE, UL, CSA, SIL 3 (IEC 61508), TÜV Rheinland |