Fire Damper Link - Model JS | RS Steel

Mechanical heat activated device specifically Designed for Standard Type Fire Dampers. This product is listed by Underwriters Laboratories. Comes to You Ready to Install.
We strongly advise adherence to NFPA 80 chapter 5: Fire Door Care and Maintenanc
???e. In view of the life safety nature of this product, we recommend release of the link by heat gun followed by replacement.NFPA 80 CHAPTER 19 Testing of Fire/Smoke Dampers:NFPA 80 chapter 19.4.4 states the test frequency of fire dampers shall be every 4 years. Due to the life safety nature of the fusible link portion of this damper we recommend replacement at this time and destruction of the replaced link.