Name: TRICONEX 3501TN2 | RUNSHENG
Brand: Triconex
SKU: TRICONEX 3501TN2
Price: 1109.00 CNY
Availability: InStock

Description

1. Product Description

TRICONEX 3501TN2 is a high-reliability digital input module from TRICONEX, a leading brand in industrial automation and safety systems. Designed for critical control environments, the 3501TN2 is engineered to accurately acquire and process discrete input signals from field devices such as switches, sensors, and limit switches. Leveraging TRICONEX’s renowned triple modular redundancy (TMR) technology, this module ensures robust fault tolerance by triplicating all critical circuits, allowing it to maintain operation even in the presence of single-channel failures. The 3501TN2 is optimized for applications requiring deterministic performance and high availability, making it a trusted choice for safety-instrumented systems (SIS) across industries.

2. Product Parameters

Parameter	Details
Module Type	Digital Input Module (Discrete Input)
Voltage Range	24 V DC (nominal), with transient protection against overvoltage spikes
Input Channels	16 isolated channels (8 differential or 16 single-ended configurations)
Compatibility	Compatible with TRICONEX Tricon controllers and TMR-based architectures
Signal Type	Dry contacts or solid-state outputs (NPN/PNP compatible)
Diagnostics	Built-in self-test (BIST) for channel integrity and wiring faults
Operating Temperature	-40°C to +70°C (-40°F to +158°F)
Certifications	SIL 3 (IEC 61508), ATEX, IECEx (for hazardous area applications)

TRICONEX 3501TN2

3. Advantages and Features

The TRICONEX 3501TN2 stands out for its TMR architecture, which provides inherent redundancy without external components, reducing system complexity and improving mean time to repair (MTTR). Its isolated input channels minimize cross-talk and electrical noise, ensuring signal integrity in harsh industrial environments. The module supports hot-swappable functionality, allowing maintenance or replacement without disrupting system operation. Additionally, its advanced diagnostics enable real-time monitoring of channel health, reducing downtime through proactive fault detection. For example, in a chemical plant application, the 3501TN2 reliably captured emergency stop signals with sub-millisecond response times, maintaining safety compliance during critical operations.

4. Application Fields and Cases

The 3501TN2 is widely used in industries such as oil and gas, power generation, pharmaceuticals, and automotive manufacturing, where safety and reliability are non-negotiable. It is suitable for applications including emergency shutdown systems (ESD), burner management systems (BMS), and machine safety interlocks. A notable case involves a large-scale refinery that integrated the 3501TN2 into its Tricon-based SIS to monitor valve positions and pressure switches. The module’s TMR design ensured uninterrupted signal acquisition during a transient power surge, preventing false trips and maintaining operational continuity.

5. Competitor Comparison

Compared to similar digital input modules in the market, the TRICONEX 3501TN2 distinguishes itself through its built-in TMR redundancy, eliminating the need for external redundant wiring or auxiliary modules. This design reduces installation costs and space requirements while enhancing system reliability. Its wide temperature range and hazardous area certifications also make it more versatile for extreme environment applications compared to non-TMR alternatives.

TRICONEX 3501TN2

6. Selection Suggestions

When selecting the TRICONEX 3501TN2, consider the following:

Compatibility: Ensure it aligns with your existing TRICONEX controller and system architecture.
Environmental Requirements: Verify the module’s temperature, vibration, and noise specifications match your operational environment.
Channel Configuration: Determine whether single-ended or differential input channels are required for your field devices.
Safety Integrity Level (SIL): Confirm that the module’s SIL 3 certification meets your application’s safety requirements.

7. Precautions

Installation: Follow TRICONEX’s guidelines for proper grounding and wiring to avoid electromagnetic interference (EMI).
Maintenance: Regularly review diagnostic reports to identify potential channel degradation or wiring issues.
Software Integration: Ensure firmware and configuration tools are up-to-date to leverage all safety and performance features.
Hazardous Areas: Only install the module in certified environments and follow local explosion protection regulations.

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