TRICONEX 3723X 16-Channel Safety Digital Input Module for Tricon SIL 3 SIS

Product Description

The TRICONEX 3723X is a high-integrity Triple Modular Redundant (TMR) 16-channel digital input module, engineered by TRICONEX (Schneider Electric) for SIL 3 safety instrumented systems (SIS) in critical industrial environments. As a core safety signal acquisition component, this hot-swappable module (supplied as a TMR set of 3) is designed to collect dry-contact or wet-contact (24 VDC) discrete signals from field safety devices (emergency stop buttons, flame detectors, pressure switches) with high noise immunity and channel-level diagnostics. It features channel-to-channel and channel-to-ground isolation, TMR majority voting, and seamless integration with Tricon/Tricon CX chassis—making it ideal for emergency shutdown (ESD), fire & gas (F&G), and process safety systems in oil & gas, chemical, petrochemical, and power generation industries.

Key Functions

The 3723X digital input module delivers fault-tolerant, TMR-voted discrete signal acquisition for safety-critical applications. Key functions include: 16 independent digital input channels (configurable for dry/wet contact, 24 VDC nominal); channel-to-channel and channel-to-ground isolation (2500 V AC optical isolation) to prevent ground loops and electrical noise interference; TMR majority voting (2-out-of-3) for data integrity; hot-swappable design for online maintenance without system shutdown; LED status indicators for module health, channel active status, and voting results; and compatibility with Tricon/Tricon CX main/expansion chassis.

Application Scenarios

The TRICONEX 3723X digital input module is deployed in safety-critical industrial applications requiring high-integrity discrete signal acquisition with SIL 3 compliance. In offshore oil & gas platforms and refineries, it collects signals from ESD pushbuttons, fire detectors, and pressure/temperature switches to trigger safety shutdowns. For chemical and petrochemical plants, it monitors reactor interlock switches, toxic gas detectors, and emergency isolation valve position feedback, ensuring coordinated safety actions and compliance with IEC 61508/61511 standards. In power generation facilities, it connects turbine/generator protection relays, breaker position sensors, and cooling system alarms to Tricon SIS, supporting regulatory compliance and operational reliability. The module is also used in mining, pharmaceutical, and water/wastewater treatment—all scenarios where secure, high-availability discrete signal acquisition is mandatory.

Technical Specifications

• Global Inventory Network: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses—supporting faster delivery and reduced logistics costs.
• Pricing & After-sales: Competitive prices paired with reliable after-sales warranty services.
• Customer Coverage: Serving clients across regions including the United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.
• Product Quality Assurance: All products are brand new and original. Spare parts include a 1-year warranty, and all items undergo pre-delivery testing and certification.
• Discount Policy:
• Multi-product orders qualify for custom discounts (contact us for details).
• We offer further price adjustments if you receive a lower quote for identical products from other suppliers, tailored to your budget.