Triconex DO3625 Digital Output Module

Product Description

The Triconex DO3625 is a high-integrity digital output module designed for the Triconex Triple Modular Redundant (TMR) Safety Instrumented System (SIS) platform, engineered specifically for mission-critical safety and emergency shutdown applications requiring SIL 3 certification and fault-tolerant operation. As a core component of the Triconex TMR architecture, this module features triple-redundant signal processing and output circuits, robust galvanic isolation, and industrial-grade components to ensure reliable operation in extreme environmental conditions (temperature, vibration, humidity, electrical noise) typical of oil & gas, chemical, and power generation facilities. Its compact rack-mount design integrates seamlessly with Triconex chassis, while hot-swappable functionality enables maintenance without system shutdown. The DO3625 delivers deterministic, fail-safe digital output performance with built-in diagnostic capabilities, making it an essential component for safety instrumented functions (SIFs) such as emergency shutdown (ESD), fire & gas system actuation, and safety interlock control.

Key Functions

The primary function of the Triconex DO3625 module is to convert TMR controller safety commands into fail-safe digital output signals to drive critical field actuators (solenoid valves, contactors, relays) in safety instrumented systems, with triple-redundant signal validation and output circuits to ensure fault tolerance. It features 16 independent digital output channels configured in a TMR architecture, each with built-in self-diagnostic capabilities to detect output faults, channel degradation, or module malfunctions in real time. The module supports fail-safe operation (de-energized to safe state) in the event of power loss or module failure, and complies with IEC 61508 SIL 3 requirements for safety integrity. It provides comprehensive diagnostic data (output open/short circuits, overcurrent conditions) to the Triconex TriStation engineering software for proactive maintenance and compliance reporting. Additionally, the DO3625 is ATEX/IECEx certified for hazardous area operation, supports hot-swap replacement to eliminate system downtime, and offers configurable output response times to meet the strict timing requirements of emergency shutdown systems.

Application Scenarios

The Triconex DO3625 digital output module is exclusively deployed in safety instrumented systems (SIS) for high-risk industrial applications requiring SIL 3 certification across multiple sectors. In oil and gas upstream/midstream/downstream operations, it drives emergency shutdown (ESD) valves, pipeline isolation valves, and wellhead emergency depressurization actuators in TMR SIS systems to prevent catastrophic events. For chemical and petrochemical plants, it actuates safety interlock relays, reactor trip systems, and toxic gas scrubber controls in SIS applications for batch and continuous process safety. In nuclear and thermal power generation facilities, it triggers turbine emergency trip systems, boiler safety relief valves, and coolant system shutdown actuators in reactor protection SIS. The module is also essential for offshore production platforms, where it drives fire & gas system alarm sirens, emergency shutdown valves, and evacuation system actuators in hazardous Zone 1/2 environments. Additionally, it is used in pharmaceutical manufacturing for high-integrity batch process safety interlocks, in mining operations for conveyor belt emergency stop systems, and in water treatment plants for critical pump station shutdown SIFs.

Technical Specifications

Contact Information

• Sales Manager: KI MI
• WeChat: 18059884790
• WHATSAPP: +86 18059884790 (Click to add)
• Email: plc66@qq.com

Core Advantages

• 121 shared inventories worldwide, with direct procurement from overseas warehouses.
• Provide favorable prices and professional after-sales warranty services.
• All products are brand new and original; spare parts come with a one-year warranty and have been tested and certified.
• For orders of more than one product, contact us to get an exclusive discount.
• If other suppliers offer lower prices for the same products, we are willing to provide further discounts based on your budget.

Customer Distribution

Our customers are from: United States, Germany, Japan, South Korea, United Kingdom, France, Italy, Canada, Brazil, India, Australia, Russia, Spain, Netherlands, Switzerland, Sweden, Belgium, Austria, and Turkey.

Note

All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products bearing these names, trademarks, brands, and logos is for identification purposes only and does not imply any affiliation with or authorization from any rights holder.