Eagle Eye Power Solutions

VS-12 Battery Exhaust Fan

The VS-12 battery exhaust fan is a 850 CFM forced fan system used in battery charging rooms and other locations where motive power and stationary batteries are present. The VS-12 can also be used where there is a possibility of other flammable or toxic gasses accumulating in a confined spaced. It is designed to be used in conjunction with the Eagle Eye Power Solutions HGD-3000 gas / smoke detector with silent intrusion alarm. The VS-12 combined with the HGD-3000 provides an all in one package ideal for remote and other locations requiring a low-cost, easy to install system.


  • Compliant with NEC 501, Class I Division II Group B
  • 850 CFM wall mounted fan
  • Powered dampers
  • Designed for use with explosive or toxic gas detectors, including the Eagle Eye Power Solutions HGD-Series
  • LED status display
  • Motorized dampers locked when open or closed
  • Simple installation with sliding collar to fit different wall thicknesses
  • Long operating life
  • Available in 120 VAC and 24 or 48 VDC versions
  • Insurance premium reduction may be realized

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Mounting RequirementsOpening: 311 x 311 mm (12.25 x 12.25 in.)
Wall thickness: 38 to 203 mm (1.5 to 8 in.)
DimensionsL x W x H: 241 x 305 x 305 mm (9.5 x 12 x 12 in.)
Power Requirements110 AC, .67A (80W)
24 VDC, 3.5A
48 VDC, 1.7A
Airflow850 CFM
OptionalReversed fan for use as forced air
CertificationsClass 1 Division 2 Group B Motor


What are the benefits of installing a VS-12 ventilation system?
In rooms with battery charging systems or other areas where hydrogen gas may be present, it is extremely important to remove the hydrogen gas from the area before it builds up and creates unsafe environments. The VS-12 is to be used in conjunction with our HGD-Series hydrogen gas detectors to ventilate hydrogen out of an area once it is detected. If a room has hydrogen gas buildup, the HGD-Series gas detector will turn on the ventilation fans when the atmosphere reaches 1% hydrogen concentration. Alarms will also sound at 2% concentration. Both of these would have been well before the lean mixture of hydrogen could ignite. During this period, the fans will be operating to vent the hydrogen gas, so that the area is kept safe.

What are the power requirements for the VS-12?
There are several different input power options available to choose from for the VS-12: 110 VAC, 24 VDC, or 48 VDC. Current draw is .67A at 110 VAC, 3.5A at 24 VDC, or 1.7A at 48 VDC.

Can the ventilation system be set up in the reverse direction (forcing air inside)?
Yes, the unit usually is set up to exhaust air out of the room, but can be factory configured to force air into a room if necessary.

What test standards does the VS-12 comply with?
The only part of the VS-12 which requires compliance testing is the fan motor. The fan motor for the VS-12 is UL, RoHS and TUV compliant, and is nonincendiary.

What is the airflow and static pressure value for the 12” fan?
The 12” fan runs at 850 CFM with a static pressure of 1.14.

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