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  7. MCAFD4/8 4/8-channel Active Fieldbus...
MCAFD48 Active Fieldbus Distributor
MCAFD48
MCAFD48-1
MCAFD48-2
MCAFD48 Wiring Diagram
MCAFD48 Active Fieldbus Distributor
MCAFD48
MCAFD48-1
MCAFD48-2
MCAFD48 Wiring Diagram

MCAFD4/8 4/8-channel Active Fieldbus Distributor

MCAFD4-8

Product Overview

The MCAFD series active fieldbus distributors (explosion-proof type) are suitable for FOUNDATION Fieldbus H1 and PROFIBUS PA applications. They connect field devices to the system in a trunk-branch topology. Each MCAFD4/MCAFD8 distributor has 4/8 branches, a built-in automatic bus termination, and LED status indicators for quick diagnosis of short circuits in the main and branch lines. They automatically isolate faulty sections, and the distributors’ multiple protection functions ensure safe system operation.

MCAFD4-8 Certification Diagram
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Application Cases
Rated Voltage (9~32)VDC
Interface PROFIBUS PA, FOUNDATION Fieldbus H1
Rated Current ≤1A
No-Load Current MCAFD4: <10mA
MCAFD8: <15mA
Power Consumption MCAFD4: <180mW
MCAFD8: <240mW
Trunk Voltage Drop <0.3VDC
Trunk-to-Segment Voltage Drop <1VDC
Max Segment Output Voltage ≤32VDC
Max Segment Output Current 60mA
Short-Circuit Protection Current <300μA
Trunk Connector Qty 2
Trunk Connector M16 × 1.5 Cable Gland
Trunk Cable Diameter (4~9)mm
Trunk Conductor Cross-Section (0.2~2.5)mm²
Trunk Terminal Type Screw Terminal
Segment Connector Qty MCAFD4: 4
MCAFD8: 8
Segment Connector M16 × 1.5 Cable Gland
Segment Cable Diameter (4~9)mm
Segment Conductor Cross-Section (0.2~2.5)mm²
Segment Terminal Type Screw Terminal
Termination Setting Automatic, No Manual Setting Required
Temperature Range (-40~85)℃
Humidity Range (5~95)%RH
Storage Temperature (-50~85)℃
Protection Level IP67
EMC IEC 61326 (GB/T 18268)
Housing Material Die-Cast Aluminum
Mounting Wall Mounting
Dimensions MCAFD4: (125 × 80 × 57)mm
MCAFD8: (250 × 80 × 57)mm
Weight MCAFD4: Approx. 0.6kg
MCAFD8: Approx. 1.2kg
  • Rapidly meets field application needs: Helps system integrators quickly connect FOUNDATION Fieldbus H1 or PROFIBUS PA instruments to fieldbus networks to meet on-site application requirements.
  • Easy installation: MCAFD series active fieldbus distributors provide mounting holes for simple and convenient installation.
  • Compatible with mainstream control systems: MCAFD series active fieldbus distributors have been tested and verified with major control systems from Siemens, Emerson, Schneider Electric, ABB, Honeywell, Rockwell Automation, and others.
  • Easy to use: No configuration is required. Simply connect the device for plug-and-play operation.
  • Comprehensive functionality: Includes main and branch short-circuit and overload protection, automatic bus termination, reverse wiring protection, automatic fault isolation ports, and built-in fault diagnostics to ensure reliable and comprehensive system protection.
  • Wide applications: Ideal for system integrators building FOUNDATION Fieldbus H1 and PROFIBUS PA systems.
  • High protection level: Rated IP67, making the product suitable for independent outdoor installation and operation in harsh industrial environments.
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