Product Description
VTX400C Atmosphere Inline Fan is a high-performance 4" centrifugal blower designed to deliver consistent airflow and efficient ventilation for residential and commercial spaces. Featuring a precision-balanced impeller, permanently lubricated sealed bearings, and a compact aerodynamic design, this inline duct fan is ideal for general ventilation needs where space and performance matter.
Brand: Atmosphere / Panasonic
Model: VTX400C
Duct Size: 4"
Airflow: Up to 198 CFM
Power: 120V, 0.58 Amps
Speed Control: 100% variable
Thermal Protection: Automatic reset
Warranty: 10-Year Manufacturer's Warranty
Free shipping on orders over $250
Product Benefits
- Provides quiet and efficient inline airflow for HVAC and grow room systems
- Mountable design with included brackets for flexible wall or ceiling installation
- Completely sealed bearings—zero lubrication needed over its lifetime
- Operates safely at airstream temperatures up to 140°F (60°C)
Key Features
- Compact 4" Duct Design: Ideal for localized ventilation applications
- 100% Speed Controllable: Fine-tune airflow to specific needs
- ETL Listed: Meets strict North American safety standards
- External Rotor Motor: Integrated thermal overload protection
- Prewired: Includes 120V power cord for plug-and-play installation
Technical Specifications
| Technical Specs | |
|---|---|
| Input Voltage | 120V |
| Frequency | 60 Hz |
| Amperage | 0.58 Amps |
| Speed (RPM) | 2970 RPM |
| Mounting | Wall or Ceiling Brackets Included |
| Performance Specs | |
|---|---|
| CFM @ 0” Static Pressure | 198 CFM |
| CFM @ 0.25” | 184 CFM |
| CFM @ 0.5” | 172 CFM |
| Maximum Static Pressure | 1.885" WG |
| Physical Specs | |
|---|---|
| Duct Diameter | 4" |
| Length (A) | 8.5" |
| Width (B) | 9.5" |
| Height (D) | 8.6" |
| Weight | Approx. 6 lbs |
| Compliance & Safety | |
|---|---|
| Certifications | ETL Listed, AMCA Air (Pending) |
| Thermal Protection | Auto-Reset |
| Warranty | 10-Year Limited Warranty |
Application Examples
- HVAC duct boosting for improved air circulation
- Indoor grow room air exchange and filtration
- Residential bathroom or attic exhaust systems
- Workshop and garage ventilation solutions
Installation Tips
- Mount securely to wall or ceiling using included brackets and screws
- Ensure the impeller is unblocked and ducted to the outdoors
- Connect to a 120V AC supply with included power cord
- Do not install in wet or exposed locations
- Follow local building codes for electrical connections
Frequently Asked Questions
Q: What size duct does the VTX400C support?
A: This model is designed for 4" duct installations.
Q: Can I mount this fan horizontally or vertically?
A: Yes, it includes brackets for both wall and ceiling mounting in either orientation.
Q: Is the fan speed adjustable?
A: Yes, the VTX400C is 100% speed controllable using compatible speed controllers.
Q: Does this unit require lubrication?
A: No, it uses permanently lubricated sealed bearings and requires no maintenance.
Q: Can it handle high-temperature airflow?
A: Yes, it is rated for airstreams up to 140°F (60°C).
Q: What power does it run on?
A: It runs on 120V/60Hz standard AC power and comes prewired with a power cord.
Q: Is it safe for bathroom installations?
A: Yes, but do not place it where it can be reached from a tub or shower.
Q: What is the warranty coverage?
A: The fan includes a 10-year manufacturer’s warranty when installed per instructions.
Q: Can this fan be used to exhaust hazardous materials?
A: No, it is for general ventilation only and not suitable for hazardous or explosive vapors.
