PLCs, Power Supplies & Others

The TRICONEX 3603B operates as a Triple Modular Redundant (TMR) High-Voltage Digital Output module designed for direct control of 120VAC field devices. This module forms an essential component within Triconex safety instrumented systems, providing fault-tolerant output capabilities for critical actuation applications. Engineers rely on the 3603B to drive solenoids, motor starters, and alarm indicators in processes where single-point failures cannot interrupt safety functions.

TMR Architecture and Output Specifications

We engineer the TRICONEX 3603B with triple modular redundancy, featuring three independent output channels that vote on each actuation command. This architecture ensures continuous operation even if one channel fails, maintaining SIL 3 compliance for emergency shutdown systems. The module directly switches 120VAC loads, eliminating the need for external interposing relays in many applications.

• Output Voltage: 120VAC nominal for direct field device control.

• Redundancy: Triple Modular Redundant (TMR) design for fault-tolerant operation.

• Channel Count: Multiple isolated output channels per module.

• Switching Capacity: Suitable for solenoids, contactors, and alarm systems.

• Diagnostics: Continuous output monitoring with open-wire detection.

Physical Specifications and System Integration

The 3603B measures approximately 35.6 cm in height, 12.7 cm in width, and 3.8 cm in depth, occupying a single slot within the Triconex chassis. The unit weighs roughly 1.8 kg and features high-density backplane connectors for secure communication with the main processor. Its ruggedized construction withstands industrial environments including temperature extremes, vibration, and electrical noise common in power generation and oil and gas facilities.

Technical Specifications Overview

Details