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- Invensys Triconex
- 3853
- Digital Input Module
- USA
- 138 × 33 × 118 mm
- 0.25 kg
- Xiamen, China
- New & In Stock
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Triconex 3853 Digital Input Module
Product Introduction
The Triconex 3853 is a Digital Input Module designed for use in high-integrity safety and control applications. As part of the Tricon safety platform developed by Triconex (a Schneider Electric brand), this module captures and transmits discrete field signals with exceptional reliability. It is primarily engineered to detect the presence or absence of digital (on/off) signals from process field devices such as limit switches, proximity sensors, pressure switches, and more.
With full support for fault-tolerant and fail-safe operation, the Triconex 3853 is built to comply with SIL 3 (Safety Integrity Level) applications and is widely used across industries where reliability and continuous availability are critical.
Product Specifications
| Parameter | Specification |
|---|---|
| Model | 3853 |
| Product Type | Digital Input Module |
| Brand | Triconex |
| Series | Tricon |
| Input Channels | 32 channels |
| Input Type | Discrete (DC) |
| Nominal Voltage | 24 VDC |
| Input Current | Approx. 8 mA per channel |
| Isolation | Channel-to-channel and to system ground |
| Status LEDs | Yes, for channel health & diagnostics |
| Communication | Redundant bus interface |
| Mounting Type | Plug-in module for chassis installation |
| Operating Temperature | -20°C to +60°C |
| Certifications | TÜV, IEC 61508 SIL 3, CE, UL |
| Dimensions | 138 × 33 × 118 mm |
| Weight | 0.25 kg |
Applications
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Emergency Shutdown Systems (ESD): Monitors status of field switches for rapid and reliable emergency actions.
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Fire and Gas Detection: Integrates sensor data from smoke, heat, and gas detection units for real-time alerts.
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Turbine and Compressor Monitoring: Used to gather operational status signals from rotating equipment.
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Pipeline Control Systems: Ensures safe operation of critical valves and actuators based on field signals.
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Refineries and Chemical Plants: Detects critical safety interlock statuses to prevent hazardous conditions.
Advantages
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SIL 3 Certified Reliability: Ensures safety system compliance and maximum process protection.
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Channel Isolation: Each input is galvanically isolated for safety and diagnostic accuracy.
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Modular Redundancy: Designed for use with triple modular redundant (TMR) architectures for high availability.
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Comprehensive Diagnostics: Built-in health indicators provide real-time fault detection and troubleshooting.
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Seamless System Integration: Fully integrates into Triconex TMR systems, simplifying configuration and maintenance.
Brand Overview
Triconex, a part of Schneider Electric, is a globally recognized brand in the domain of safety-instrumented systems (SIS) and critical control systems. The Tricon platform is renowned for its triple modular redundancy (TMR) architecture, providing high fault tolerance and maximum system availability. Triconex systems are extensively used in oil & gas, chemicals, power generation, and nuclear applications—where human safety and environmental protection are paramount.
Recommended Models (Same Series or Related)
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| 3854 | 32-channel digital output module | 138 × 33 × 118 | 0.26 kg |
| 3700A | Main processor module | 138 × 33 × 195 | 0.45 kg |
| 3625 | Analog input module | 138 × 33 × 118 | 0.28 kg |
| 3664 | Analog output module | 138 × 33 × 118 | 0.3 kg |
| 4351B | Redundant communication module | 138 × 33 × 118 | 0.27 kg |
Popular Triconex Models
| Model | Description | Series | Dimensions (mm) | Weight |
|---|---|---|---|---|
| 3008 | Tricon main processor | Tricon | 235 × 49 × 125 | 0.6 kg |
| 3721 | 16-channel digital input module | Tricon | 138 × 33 × 118 | 0.25 kg |
| 4211 | Power supply module | Tricon | 138 × 45 × 140 | 0.7 kg |
| 3504E | Enhanced analog input module | Tricon | 138 × 33 × 118 | 0.3 kg |
| 3706A | TMR communication module | Tricon | 138 × 33 × 118 | 0.26 kg |
FAQ (Q&A)
Q1: What is the main function of the Triconex 3853 module?
A1: It receives and processes digital input signals from field devices for use in safety and control logic.
Q2: How many channels does the 3853 support?
A2: It supports 32 digital input channels.
Q3: Is this module suitable for safety applications?
A3: Yes, it is SIL 3 certified according to IEC 61508 standards.
Q4: Can the module be used in harsh environments?
A4: Yes, it is designed to operate reliably between -20°C to +60°C.
Q5: Does the 3853 provide input isolation?
A5: Yes, each channel is isolated for improved safety and signal integrity.
Q6: What series does this module belong to?
A6: It belongs to the Tricon series by Triconex.
Q7: What kind of diagnostics does the module provide?
A7: It features LED indicators for real-time health and status diagnostics.
Q8: Can this module be hot-swapped?
A8: Yes, it supports hot-swapping within the Tricon chassis.
Q9: How is it mounted?
A9: It is installed as a plug-in module in the standard Tricon backplane chassis.
Q10: What certifications does it hold?
A10: It is certified to IEC 61508 (SIL 3), TÜV, CE, and UL standards.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.