Fire Door And Shutter Fusible Links

The fusible link will soften in the heat of a fire and when the cable eventually parts the tension on the cable releases and the lever moves on the closing device allowing the shutter to close.

Fire door and shutter fusible links.

Why choose the industrial fire roller shutter with fusible link. The industrial fire shutters use single 240v or 3 phase 415v inline industrial motors which allows shutters up to 12m wide. Every rolling steel fire door has to come with fusible links to self close the door. In some instances a fire marshall will want to have the fusible links as close as possible to the ceiling or on both sides of the opening.

A fusible link looks like the picture below. Style 9 links are good for range hood applications. Style 6 and 7 links are often used on fire doors windows hatches dampers and blowers. Style 8 links are commonly used on fire doors smoke and heat vents and ducts.

S hooks and sash chain are the other parts of the drop system that are use in conjunction with the fusible links and we carry both of those components as well. All firecurtain counter shutters comply with ul c ul fm and csfm requirements for 3 hour 1 1 2 hour or hour fire ratings. The fireking model 631 rolling fire rated service door offers superior protection wherever a small ul listed fire door is required. Fireking model 631.

Fire rated service door model 631 is a smaller fire door with ul ulc ratings. Style 1 5 links are for use on fire doors windows and lids. Additional safety and protection features are available including. Fire sentinel time delay release device firelite vision lites smoke detectors horns.

The industrial fire shutters are designed for larger openings up to 12m wide and are tested to stop the spread of fire from 1 4 hours. Provided with fusible links that automatically release to close the door at 165 f the shutter can also be triggered by smoke and heat detectors a building s alarm system or lm21 fail safe release devices. Fusible links are located above the rolling door and on the sides.