51401496-100 TDC 3000 Dual Node Fan Assembly | Honeywell

Product Overview

The Honeywell 51401496-100 operates as a high-displacement Dual Node Fan Assembly engineered specifically to cool the Dual Node Card File Assembly (DNCFA) within Honeywell TDC 3000 Distributed Control Systems (DCS). This module introduces dual-fan redundancy directly into the card chassis, preventing heat stagnation and safeguarding dense arrays of processing cards from thermal failure. We supply this product in 100% Brand New, original factory-sealed condition from the USA, complete with an integrated diagnostic interface to secure your critical control architecture.

Technical Specifications

Engineering Advantages

• Ensures Continuous Uptime via Redundancy: The dual-fan layout provides a fail-safe cooling mechanism. If one fan stops or drops in RPM, the remaining fan accelerates airflow to maintain safe operating temperatures within the DNCFA enclosure, preventing emergency shutdowns.

• Accelerates Fault Diagnostics: A front-facing red LED activates immediately upon fan component failure. This visible indicator allows field technicians to identify and isolate mechanical faults instantly during routine floor walks without pulling data logs or opening the chassis.

• Optimizes Dense Card Slot Airflow: The low-profile dimensions (5.1 cm x 26.7 cm x 17.8 cm) slide directly into the dedicated DNCFA cooling channels. This configuration forces high-velocity air across tightly packed PCB surface components, eliminating dangerous localized heat pockets.

• Simplifies Drop-In Field Installation: The unit matches the native physical form factor of legacy TDC 3000 hardware. Technicians slip the assembly into position and connect the standard 24 VDC power tap, completely avoiding field wiring modifications or custom brackets.

FAQs

• How does the front-panel LED detect a fan failure on the 51401496-100?

  The internal circuitry constantly monitors the current draw and rotation parameters of both fan motors. If either fan drops below standard operational thresholds or loses power entirely, the module trips an internal relay and illuminates the bright red front-panel LED.

• Can I replace an active fan assembly while the TDC 3000 system remains online?

  You can hot-swap this fan assembly if your specific DNCFA housing setup permits physical clearance. Because the module utilizes a self-contained 24 VDC interface and operates independently of the control data bus, pulling the unit does not interrupt the logic execution of adjacent processing cards. However, execute the swap quickly to avoid heat buildup during the transition.

• Does this brand-new unit carry a factory warranty?

  Yes. We back this 100% brand-new, original USA-origin Honeywell assembly with a comprehensive 12-month warranty that covers any mechanical or electrical defects from the date of purchase.