Overview
The Rotron TN3A2 is a tubeaxial AC cooling fan manufactured by AMETEK Rotron for industrial control panel thermal management. Rated for 115VAC 50/60Hz operation at 85W, this fan delivers 330 CFM airflow with integral thermal overload protection. The TN3A2 operates at 3,350 RPM and is designed for ball-bearing durability in continuous industrial duty.
Key Features
- 115VAC 50/60Hz single-phase AC motor
- 85W rated power output with 330 CFM airflow capacity
- 3,350 RPM ball-bearing construction for extended service life
- Integral thermal overload protection prevents nuisance shutdowns
- Terminal wire connection for straightforward panel installation
- Tubeaxial design optimized for ducted or direct-mount cooling
Technical Specifications
Input voltage: 115VAC single-phase
Frequency: 50/60Hz
Power consumption: 85W (full-load condition)
Speed: 3,350 RPM
Airflow: 330 CFM
Running current: 1.2A
Locked rotor current: 2.2A
Bearing type: Ball bearing
Connection type: Terminal wire
Thermal protection: Integral overload switch
Fan type: Tubeaxial 7-inch motor
Manufacturer: AMETEK Rotron
Part number reference: 020174
Status: Discontinued by manufacturer
Typical Applications
- Industrial control panel active cooling
- PLC cabinet thermal management
- Motor drive and power supply cooling
- Industrial enclosure ventilation
- Equipment cooling where standard AC-powered fans are required
Compatibility & Replacements
Compatible With
- Standard 115VAC single-phase power distribution in industrial control panels
- Terminal wire connection to standard terminal blocks and contactor wiring
- Ductwork and plenum systems using 7-inch tubeaxial fans
- Industrial control environments operating 50 or 60Hz line frequency
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The TN3A2 is a discontinued item; replacement models should be confirmed with Rotron current product offerings or equivalent tubeaxial fan manufacturers.
Works With
- Thermal overload protection systems and control circuit wiring
- Manual or automatic ventilation control schemes
- Ducted cooling systems and open-plenum panel designs
- Industrial facilities using standard single-phase 115VAC power infrastructure




