Product Overview

The Honeywell FS-FANWR-24R is a high-reliability thermal management assembly designed to regulate internal temperatures within industrial control enclosures and Distributed Control System (DCS) racks. This kit features a dual-fan configuration mounted on a precision-engineered baseplate, integrated with a dedicated monitoring circuit board (PCB 07209). Beyond simple ventilation, the FS-FANWR-24R provides intelligent feedback to the supervisory control system. It utilizes active speed monitoring to ensure that cooling is consistent, preventing localized hotspots that can lead to premature component failure or system trips. Its compact, low-profile design allows it to be integrated into high-density cabinets where airflow optimization is critical for hardware longevity.

Thermal Control Specifications and Hardware Data

• Operating Voltage: 24V DC nominal (Flexible range from 12V to 29V DC)

• Power Consumption: 9.5 Watts

• Monitoring Logic: Integrated RPM sensors with green LED "Active" indicators

• Status Feedback: Potential-free readback contact (closes when both fans are at speed)

• Circuit Protection: Internal 2A slow-blow fuse for overcurrent prevention

• Contact Rating: Supports switching up to 300V DC / 240V AC at 0.5A

• Safety Features: Dual-sided metallic finger guards and rigid mounting plate

• Connection Interface: 4-pole secure-lock connector for power and signal

• Physical Mass: 0.15 kg

• Assembly Dimensions: 12cm x 19cm x 2cm

Industrial Thermal Management Scenarios

The FS-FANWR-24R is an essential utility for maintaining the environmental stability of sensitive automation electronics, particularly in unconditioned industrial zones.

• DCS Cabinet Heat Dissipation: Providing forced-air cooling for Honeywell TDC 3000 or Experion PKS racks to ensure controllers and I/O modules operate within their rated thermal envelopes.

• Critical Fault Signaling: Utilizing the potential-free readback contact to trigger a SCADA alarm if a fan stalls, allowing maintenance teams to intervene before a thermal shutdown occurs.

• High-Density Power Enclosures: Ventilating power distribution cabinets where large DC power supplies generate significant heat during high-load operations.

• Visual Maintenance Checks: Enabling quick "at-a-glance" health inspections via the on-board LEDs, which indicate if fans have dropped below the minimum operational RPM.

• Safety System Cooling: Ensuring that Safety Manager or Fail-Safe Controller (FSC) racks remain cool in mission-critical emergency shutdown (ESD) applications.