Description - Johnson Controls - LIT-1900638 - LIT-1900638

SD-1250 Smoke Dampers Catalog Page

Johnson Controls
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Johnson Controls provides a leakage-rated damper for life safety smoke management systems that meets the new Underwriters Laboratories Inc® (UL) leakage testing procedures and fits your size and application requirements:

  • SD-1250 Class I leakage resistance aluminum frame and aluminum airfoil shaped blades

Smoke Dampers are listed under the latest Standard 555S, and carry the UL/cUL label. UL listing number is R11172.

All Smoke Dampers include actuators that have been tested and approved as a matched set, rated for 250°F or 350°F temperature degradation operation:

  • National Fire Protection Association (NFPA) Standards 80, 90A, 92A, 92B, and 101

Refer to the SD-1250 and SD-1600 Series Smoke Dampers Product Bulletin (LIT-1201592) for important product information.