Specialty Wire & Cable

Fire Rated - System 1850

System 1850

Pyrotenax System 1850 MI cable is FM Specification Tested and classified by Underwriters Laboratories as 2-hour fire resistive. When installed in accordance with Pentair Thermal Management installation procedures, the result is a UL/ULC 2-hour fire-resistive system. This certification meets the requirements of an “Electrical Circuit Protective System” as referred to in Articles 695 and 700 of the National Electrical Code (NEC). The details of this system appear in Electrical Circuit Integrity System (FHIT and FHITC), System No. 1850, of the UL and ULC Fire Resistance Directory.

 

System 1850 cables are manufactured using only inorganic materials, copper and magnesium oxide, and arrive on the job site with a UL fire-resistive classification that does not require additional conduit or fireproofing.

 

Unlike a conduit and wire system, System 1850 unjacketed single conductor cables, configured according to Section 332.80(B) of the National Electrical Code or Section 4-004(10) of the Canadian Electrical Code, do not require derating and can be installed using the “free air” ratings of Table 310.15(B)(17)(NEC) or Table 1(CEC).

System 1850 - Twisted Pairs

Mineral insulated (MI) wiring cable for critical fire alarm circuit protection when survival throughout a fire is essential Pyrotenax System 1850 fire alarm and voice communication MI cable is FM Specification Tested and classified by Underwriters Laboratories as 2-hour fire resistive. When installed in accordance with Pentair Thermal Management installation procedures, it meets the survivability requirements of NFPA 72 and Article 760 of the National Electrical Code (NEC).

 

System 1850 fire alarm and voice communication cables are manufactured using only inorganic materials, copper and magnesium oxide, and arrive on the job site with a UL fire-resistive classification that does not require additional conduit or fireproofing. System 1850 fire alarm cable is CSA certified as FAS, FAS 90 and FAS 105 cable. Applications include the main trunk or “backbone” of multiplex alarm systems in high-rise buildings and institutions.

 

System 1850 fire alarm and voice communication cable connects between the data-gathering panels throughout the building and the main fire alarm panel.

 

System 1850 Twisted Pair MI cable terminations are typically field installed. Factory terminated cable sets are also available. For details on terminated cable sets, contact Pentair Thermal Management.