Honeywell 51304421-100 PLCG Relay Panel Product_Ningde Androld Automation Equipment Co.,Ltd.

June 10, 2026

Honeywell 51304421-100 PLCG Relay Panel Product

1. Basic Model Information Part Number: 51304421-100 Full Name: PLCG Relay Printed Wiring Assembly Applicable System: Honeywell TDC3000 DCS Control System Matching Rack: Standard TDC300 I/O Rack Backplane Origin: United States Honeywell

Description

2. Product Function Description

This is a dedicated relay output circuit board for TDC300 legacy DCS system, integrated with multiple built-in signal relays. It converts internal control logic signals of the DCS mainframe into isolated relay contact signals to drive on-site solenoid valves, alarm lights, auxiliary relays and interlock equipment. It provides electrical isolation between cabinet internal circuit and field load to eliminate ground loop interference and protect main control cards from surge damage. Standard rack plug-in design enables fast installation, replacement and on-site maintenance.

3. Core Electrical Technical Specifications

Output Type: Dry contact relay output
Contact Load Rating: Low-power AC/DC auxiliary load driving
Isolation Design: Galvanic isolation between internal logic circuit and relay contacts
Power Supply: Powered via TDC300 rack backplane
Operating Ambient Temperature: -40℃ ~ +70℃ industrial wide temperature range
Circuit Protection: On-board TVS surge suppression, PCB with anti-corrosion conformal coating
Hardware Feature: Built-in channel self-diagnosis for relay circuit fault detection

4. Industrial Application Scenarios

Chemical Industry: Solenoid valve on-off control, safety interlock relay driving
Power Industry: Auxiliary equipment alarm light output, pump & fan interlock control
Oil & Gas Industry: Emergency cut-off valve logic execution signal output
General Process Control: Production line fault alarm, batch process sequence interlock driving

Contact Info