TRICONEX DO3401 16-Channel Digital Output Module for Tricon SIL 3 Safety Instrumented Systems

Product Description

The TRICONEX DO3401 is a high-integrity 16-channel digital output module designed for Tricon and Tricon CX SIL 3 safety instrumented systems (SIS) from Schneider Electric. Engineered for safety-critical applications, this TMR (Triple Modular Redundant) compatible module provides isolated 24 VDC source output signals to drive field devices such as solenoid valves, contactors, and alarm indicators. Featuring channel-level diagnostics, short-circuit protection, and hot-swappable design, the DO3401 ensures reliable, fault-tolerant control of emergency shutdown (ESD), fire & gas (F&G), and process safety systems. Ideal for oil & gas, chemical, power generation, and pharmaceutical industries, it complies with IEC 61508 SIL 3, FM, and ATEX standards, delivering robust performance in harsh industrial environments.

Key Functions

The DO3401 digital output module delivers fault-tolerant signal execution for safety-critical industrial control systems. Key functions include: 16 independent 24 VDC source output channels (sinking capability up to 0.5 A per channel); channel-to-channel galvanic isolation (500 VAC) to prevent cross-talk and ground loop issues; built-in short-circuit and overcurrent protection per channel to safeguard field devices and module electronics; real-time channel-level diagnostics with LED status indicators (ON/OFF, Fault, Power); hot-swappable design for online maintenance without system shutdown; seamless integration with Tricon/Tricon CX TMR backplane for redundant operation; and compliance with IEC 61508 SIL 3, IEC 61511, FM, and ATEX standards. The module also supports configurable output fault states (latched/unlatched) for safety interlock applications.

Application Scenarios

The TRICONEX DO3401 module is deployed in safety-critical applications across industrial sectors requiring SIL 3 compliance. In oil & gas refineries and offshore platforms, it controls ESD valves, emergency shutdown pumps, and fire suppression system actuators. For chemical and petrochemical plants, it drives safety interlock valves, reactor trip systems, and toxic gas mitigation equipment. In power generation facilities, it manages turbine emergency stop circuits, boiler safety interlocks, and generator protection systems. The module is also used in pharmaceutical manufacturing (clean-in-place safety controls) and mining operations (ventilation and emergency shutdown systems)—all scenarios where reliable, redundant digital output control is essential for process safety and personnel protection.

Technical Specifications

• Global Inventory: 121 shared inventories worldwide, enabling direct procurement from overseas warehouses for faster delivery.
• Pricing & After-Sales: Competitive prices plus reliable after-sales warranty services.
• Customer Coverage: Serving clients across 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: All items are brand new and original. Spare parts include a 1-year warranty, and all products are tested and certified.
• Discounts: Contact us for bulk-order discounts. We also offer further price adjustments if you receive lower quotes for identical products from other suppliers.