Overview
The Airmaster 1504 Off Hi Low Control Switch is a mechanical speed control component manufactured by Airmaster Fan Company for use with their portable and industrial fan equipment. This switch provides three discrete operating positions—Off, High, and Low—allowing operators to select fan speed manually. The Airmaster 1504 is commonly used on pedestal fans, portable fans, and other air movement equipment manufactured by Airmaster.
Key Features
- Three-position selector: Off, High, and Low speed settings
- Mechanical design for reliable, long-service operation
- Standard drop-in replacement for compatible Airmaster fan models
- Simple, direct wiring integration with fan motor circuits
- Compact form factor suitable for drop-cord assemblies and control panels
Technical Specifications
Limited manufacturer documentation is available for this legacy model. Contact an Airmaster distributor or your system integrator for exact electrical ratings and wiring requirements before installation.
Typical Applications
- Pedestal fans (18″, 20″, 24″, 30″)
- Portable industrial cooling fans
- Commercial air circulators
- Fan speed control on modular fan assemblies
- Replacement of worn or faulty multi-speed switches
Compatibility & Replacements
Compatible With
- Airmaster pedestal fan models (verify specific model compatibility)
- Airmaster portable fan assemblies
- Airmaster industrial air circulation equipment
- Standard 115V single-phase motor circuits
Replaces / Drop-In Replacement For
The Airmaster 1504 is listed in Airmaster catalogs as a control switch accessory. Verify compatibility with your specific fan model before ordering. Related models include the Airmaster 01722, 01723, and other multi-speed switches.
Works With
- Airmaster fan motors (single-phase and three-phase options available)
- Standard electrical conduit and wiring installations
- Drop-cord assemblies with integral speed controls
- OEM-equivalent replacement on original Airmaster fan installations

