Skip Content

Square Fire/Smoke Damper,11-3/4 In. H close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
How can we improve our Product Images?

Square Fire/Smoke Damper, 11-3/4 In. H

Price $559.50 / each

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 3HGJ5
  • Mfr. Model # 3HGJ5
  • UNSPSC # 40101504
  • Catalog Page # 4311
  • Shipping Weight 27.09 lbs.
Country of Origin USACountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • ItemMotorized Fire/Smoke Damper
  • ShapeSquare
  • MaterialGalvanized Steel
  • Frame16 ga.
  • Blade16 ga.
  • Fire Rated1-1/2 hr.
  • Max. Temp.350 Degrees F
  • Max. Velocity2000 fpm
  • Recommended Retaining AngleMfr. No. 2TGH2
  • Pressure Differential Max.4" wg
  • SealsExtruded Silicone Rubber Blade
  • Voltage24
  • Hz60
  • Phase1
  • Free Area74.16 sq. in.
  • Nominal Duct Width12"
  • Nominal Duct Height12"
  • Actual Width11-3/4"
  • Depth16"
  • Actual Height11-3/4"
  • Mounting TypeVertical/Horizontal
  • StandardsUL Standard 555 and 555S, NFPA 80, 90A, 92A, 92B, 101 and 105, IBC, ICBO, CSFM, NYC MEA,Class II Leakage, AMCA
  • IncludesStainless Steel Closure Spring, UL Fusible Link, Factory Mounted Actuator

Compliance and Restrictions


Alternate Search Terms

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.

Product Q&A

(1 Question : 1 Answer)

Ask your questions. Share your answers.

« Back
Need spec sheet for above damper
1 year, 6 months ago
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
1 Person needs an answerI have this question too


I will email you the documentation we have on the unit. If you need additional information please call 1-800-Grainger. Thank you for using Ask & Answer.
1 year, 6 months ago
Read all my Q&A
Please wait while more information about AngieO is loaded.
Additional information about AngieO could not be loaded.
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
1 of 1
1 of 1