TRICONEX AI3351 NEW DCS MODULE

TRICONEX AI3351 Analog Input Module: Overview and Technical Specifications
1. Product Overview
The TRICONEX AI3351 is a high-performance analog input module designed for safety-critical industrial automation and control systems, manufactured by TRICONEX (a brand under Invensys, now part of Schneider Electric). As a key component of the TRICONEX Triconex safety instrumented system (SIS) and distributed control system (DCS), this module is specialized in collecting and converting analog signals (such as temperature, pressure, flow, and speed) from field devices into digital signals for processing by the central control unit. It adopts a Triple Modular Redundant (TMR) fault-tolerant architecture, ensuring reliable operation even in harsh industrial environments. Certified to SIL 3 (Safety Integrity Level 3) in compliance with IEC 61508 and IEC 61511 standards, the AI3351 is widely used in high-risk industries including oil and gas, petrochemicals, power generation, nuclear energy, mining, and pharmaceuticals, supporting critical applications such as emergency shutdown systems (ESD), process monitoring, and safety protection systems.

2. Core Technical Specifications
2.1 Basic Information
– Brand: TRICONEX (Invensys / Schneider Electric)
– Model: AI3351 (also referred to as 3351)
– Product Type: Analog Input Module (supports both analog and pulse input variants)
– Origin: United States of America (USA)
– Safety Certification: SIL 3 compliant (IEC 61508 / IEC 61511)
– Series: TRICONEX AI3300 Series

2.2 Physical Dimensions & Weight
– Dimensions: 267 mm (Width) × 107 mm (Height) × 302 mm (Depth) [standard rack-mount size for TRICONEX modules]
– Weight: 1.5 kg (module only); 3.0 kg (including shipping packaging)
– Mounting Type: 19-inch industrial rack mount, compatible with TRICONEX standard system cabinets
– Protection Rating: IP65 (for dust and water protection, suitable for harsh on-site environments)
– Housing Material: Aluminum alloy, with dust, water, and corrosion resistance
2.3 Temperature & Envi
The TRICONEX AI3351 is widely used in high-risk industries including oil and gas, petrochemicals, power generation, nuclear energy, mining, and pharmaceuticals, supporting critical applications such as emergency shutdown systems (ESD), process monitoring, and safety protection systems.