Triconex 3721 Analog Input Module Price Advantage Trusted supplier

Brand：Invensys Triconex

Item No.：Triconex 3721

Product origin：USA

Dimensions:450 × 200 × 150 mm

Weight:2.06 kg

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Product Introduction：

Overview

The Triconex 3721 is a high-density analog input module designed for use in Triconex Safety Instrumented Systems (SIS). It features a Triple Modular Redundancy (TMR) architecture, providing high reliability and fault tolerance, widely used in oil, gas, chemical, and power industries for safety-critical applications.

General Information

Model / Type: 3721

Manufacturer: Triconex (Schneider Electric)

Country of Origin: USA

Product Category: Analog Input Module

Application: Safety Instrumented Systems (SIS), industrial automation

Electrical & Functional Specifications

Input Channels: 32 differential analog inputs

Input Signal Type: 0–5 V DC or –5 to +5 V DC (±6% overrange)

Input Coupling: DC coupled

Input Impedance: ≥30 MΩ (DC)

Input Update Rate: 10 ms

Resolution: Programmable to 12 bits or 14 bits

Accuracy: <0.15% of Full Scale Range (FSR) from 0°C to 60°C

Common Mode Rejection: -85 dB (DC to 100 Hz)

Input Overrange Protection: 150 V DC / 115 VAC continuous

Redundancy Architecture: Triple Modular Redundancy (TMR)

Compliance: IEC 61508 / IEC 62061 SIL 3

Hot-Swap Support: Yes, supports online replacement

Diagnostics: Full self-diagnostic functionality

Environmental Conditions

Operating Temperature Range: –20 °C to +60 °C

Storage Temperature Range: −40 °C to +85 °C

Humidity: Up to 95% RH, non-condensing

Protection Rating: IP20 (module designed for internal cabinet environment)

Dimensions & Weight

Dimension: Approximately 450 × 200 × 150 mm

Weight: Approximately 2.06 kg

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