TRICONEX 3501TN2 – Industrial Control Module for Critical Systems

The TRICONEX 3501TN2 serves as a rugged control solution for safety-critical applications in oil & gas, power generation, and chemical processing. This dual-processor module combines SIL 3 capability with redundant communication paths to maintain system integrity during harsh operating conditions. Its compact form factor and hot-swappable design minimize process downtime during maintenance.

Technical Specifications
Brand	TRICONEX
Model	3501TN2
Voltage	24 VDC ±15%
Power	10W max
I/O Channels	8 DI/8 DO (solid state)
Comms	Dual Ethernet (Modbus TCP/IP)
Enclosure	IP67 rated
Approvals	CE, UL, ATEX Zone 2

Application Context

This module excels in emergency shutdown systems and turbine control applications where reliability matters most. A refinery in Kuwait recently upgraded their flare gas monitoring system using this hardware, achieving 99.999% uptime over 18 months. We commonly pair it with TRICONEX 3511 analog input modules and 4355X communication interfaces for complete safety system builds.

Our inventory includes both standard and obsolete TRICONEX models – from legacy 3008 power supplies to current-generation 3721 CPUs. Need a 3501TN2 replacement with extended temperature range? We’ve got units tested to -40°C operation.

Why Choose Abbyes?

We offer 12-month warranty on all units, including refurbished stock. Our engineers can bench-test modules against actual system configurations before shipment. For time-sensitive repairs, our Hong Kong warehouse holds 16 regional service hubs’ worth of critical spares.