TK-MUX021 Honeywell | Compact Serial Interface for DCS/PLC
Manufacturer: Honeywell
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Part Number: TK-MUX021 51404391-375
Condition：New with Original Package
Product Type: Compact Serial Interface for DCS/PLC
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Overview
The Honeywell TK-MUX021 is a serial interface module designed for distributed control systems (DCS) and PLC-based automation.
It enables reliable RS485 communication, providing seamless data exchange between controllers and field devices such as sensors and actuators.
The module supports hazardous location certification, making it suitable for chemical, oil & gas, and power generation environments.
Its compact and rugged design allows flexible mounting on DIN rails or panels and ensures consistent operation across a wide temperature range.
Part of Honeywell’s modular control architecture, the TK-MUX021 is recognized for reliability, low maintenance, and precise serial communication.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | TK-MUX021 |
| Part Number | 51404391-375 |
| Product Type | Serial Interface Module |
| Communication Protocol | RS485 |
| Functionality | Serial data exchange between controllers and field devices |
| Dimensions (L × W × H) | 108 mm × 87 mm × 78 mm |
| Weight | 0.91 kg (2.0 lbs) |
| Mounting Options | DIN rail or panel mount |
| Certifications | CE, TUV, UL508, CSA |
| Operating Temperature | Wide range for harsh environments |
| Condition | Brand new and in stock |
| Country of Origin | USA |
FAQs
Q1: What communication protocol does the TK-MUX021 support?
The TK-MUX021 supports RS485 serial communication for industrial device integration.
Q2: Can this module be used in hazardous environments?
Yes, the TK-MUX021 is designed with hazardous location certification for safe operation in challenging industrial sites.
Q3: What mounting options are available for this module?
It supports DIN rail or panel mounting, providing flexible installation in control cabinets.
Q4: What systems is the TK-MUX021 compatible with?
The module works with Honeywell DCS and PLC-based automation systems for serial data exchange.
Q5: What are the shipping and warranty details?
All modules are brand new and original, shipped within 3–14 days via DHL or FedEx, with a 12-month warranty and 30-day return support for quality issues.