Product Description

The Triconex 3000290-380 Relay External Terminator (ETP), also known as Part Number 7400121-380, is a high-performance field interface component designed for Triconex Triple Modular Redundant (TMR) Safety Instrumented Systems (SIS). It provides a secure and organized termination point for relay-based output signals, offloading field wiring from the main controller chassis to enhance electrical isolation and simplify maintenance.

Manufactured in the USA, the 3000290-380 is engineered to maintain SIS loop integrity while supporting the connection of high-power or specialized relay devices. Its slim, elongated form factor allows efficient mounting in industrial cabinets, and the lightweight design ensures easy handling and installation. This external terminator is essential for applications requiring robust signal distribution and secondary protection between Triconex I/O modules and final field elements.

Key Features

• Optimized Field Interface
  Simplifies connections between TMR output modules and field relay devices

• Enhanced Safety
  Provides physical separation between sensitive controller electronics and field wiring

• Compact, Lightweight Design
  Slim 2 kg panel fits vertical or horizontal mounting in standard control cabinets

• Industrial Durability
  Engineered to Triconex quality standards for long-term reliability in harsh environments

• SIS Integration Ready
  Maintains safety integrity in high-hazard applications requiring SIL3-rated loops

Technical Specifications

Application

• Triconex Safety Instrumented Systems (SIS)

• Relay-based field device termination

• Emergency Shutdown (ESD) and Burner Management Systems (BMS)

• High-reliability signal distribution in petrochemical, power, and industrial facilities