Description
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Product Overview
The TRICONEX 3003 is a high-reliability digital input module designed for critical safety instrumentation systems (SIS) and industrial automation applications. As part of TRICONEX’s Triple Modular Redundancy (TMR) architecture, this module ensures fault-tolerant operation by processing input signals through three independent channels, enabling continuous operation even during hardware failures. The TRICONEX 3003 supports SIL 3 certification per IEC 61508 standards, making it ideal for hazardous environments in oil and gas, chemical processing, and power generation. Its robust design features galvanic isolation, surge protection, and wide operating temperature tolerance (-40°C to +70°C), ensuring reliable performance in extreme conditions. The module integrates seamlessly with TRICONEX control systems, providing real-time diagnostics and predictive maintenance capabilities to minimize downtime and enhance operational safety. Engineered for mission-critical applications, the TRICONEX 3003 delivers unmatched signal integrity and system resilience .
Technical Specifications
Parameter Name | Parameter Value |
Product Model | TRICONEX 3003 |
Manufacturer | TRICONEX (Invensys) |
Product Type | Digital Input Module |
Input Voltage | 24 V DC/AC (configurable) |
Input Channels | 16 (isolated) |
Operating Temperature | -40°C to +70°C |
Response Time | < 10 ms |
Isolation Voltage | 1500 V RMS |
Redundancy | Triple Modular Redundancy (TMR) |
Certifications | SIL 3 (IEC 61508), CE, ATEX |
Communication Protocol | TRIBus (TRICONEX proprietary) |
Power Consumption | 2.5 W (typical) |
Dimensions | 120 × 80 × 40 mm |

TRICONEX
Key Features and Advantages
The TRICONEX 3003 excels in safety-critical applications through its TMR architecture, which cross-validates input signals across three independent processors to eliminate single-point failures. This design ensures 99.999% system availability, crucial for industries where downtime can lead to catastrophic consequences. Advanced diagnostics include real-time channel health monitoring and predictive fault alerts, reducing maintenance costs by up to 40% .
Robust Industrial Design: Engineered for harsh environments, the module features IP67-rated dust/water resistance, corrosion-resistant terminals, and surge protection up to 4 kV. Its wide operating temperature range (-40°C to +70°C) ensures reliability in offshore platforms or high-vibration settings .
Seamless Integration: The TRICONEX 3003 supports hot-swappable replacement, allowing field upgrades without system shutdown. Compatibility with TRIBus protocols enables plug-and-play integration into existing TRICONEX safety systems, while configurable fail-safe states (e.g., hold last value or predefined state) prevent unsafe conditions during faults .
Application Areas
The TRICONEX 3003 is deployed in industries demanding zero-compromise safety. In oil refineries, it monitors emergency shutdown (ESD) triggers like pressure switches or gas detectors. Power plants utilize it for turbine overspeed protection and grid stability control, while chemical facilities rely on its fault tolerance for reactor temperature interlocks. The module also secures mining operations by processing signals from ventilation sensors and equipment safety cutoffs. For manufacturing automation, it integrates with robotic cells to enforce safety perimeters via emergency stop circuits. Its SIL 3 certification makes it indispensable for fire/gas detection systems in LNG terminals, where false alarms or missed events carry severe risks .
Related Products
TRICONEX 3503E: 24V AC/DC digital input module with enhanced surge protection.
TRICONEX 3625A: Analog output module for actuator control in safety loops.
TRICONEX 4351B: Main processor unit for high-speed TMR logic execution.
TRICONEX 8312: Safety Instrumented System (SIS) I/O module with HART protocol support.
TRICONEX 3009: Redundant power supply module for uninterrupted operations.
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