FPPI's back box for fire alarm bells is made from high impact ABS thermoplastic. ABS is known for its strength and rigidity and has superior electrical insulation properties as compared to PVC, styrene or other plastics. ABS can also be used in a wide range of temperatures from -13 DEG F (-25 DEG C) and 140 DEG F (60 DEG C). ABS is resistant to the elements that would normally cause corrosion in a similar back box made from cast aluminum with a painted finish.

Back Box, Size: 4 IN, Material: Cast Aluminum, Finish/Color: Red, Inlets/Outlets: 2, Mounting: Surface

• Good strength and rigidity and electrical insulation properties
• Corrosion resistant
• The back box design includes two tabs for easy surface mounting with two 1/2 IN NPT inlet/outlet for through wiring
• Each back box is supplied with four screws for mounting a compatible bell and an extra 1/2 IN NPT plug for plugging an unused NPT inlet or outlet

Application: For ABS fire alarm bell

• Catalog https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/FPPI_01-100_Catalog.pdf
• Specification Sheet https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/FPPI_02-454_Specification_Sheet.pdf