Description

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Technical Specifications

• Brand: Honeywell
• Model: 51195156-300
• Warranty: One Year
• Condition: 100% New & Original
• Power Supply: 24 VDC
• Operating Temp: -40°C ~ +70°C
• Communication: Dedicated TDC300 redundant sync bus
• Mounting: Rack mount for TDC300 chassis
• Weight: 0.68 kg
• Compatibility: Honeywell TDC300 legacy DCS platform
• Protection: Overvoltage, short-circuit protection
• Certifications: CE, UL, cUL
• Status Indicator: Front LED for redundancy health and fault alarm

3. Product Overview

The 51195156-300 is a rack-mounted redundancy driver module designed for the legacy Honeywell TDC300 DCS system. It handles high-speed data synchronization between primary and backup control processors, supporting bumpless automatic failover upon primary unit failure. The module continuously monitors sync status and detects communication or hardware faults to avoid unexpected process trips. It delivers stable redundant control operation for older continuous process plants that still run TDC300 architecture. It is widely used for maintenance and spare part replacement in oil & gas, chemical and power facilities.