Applied Products TPG provides fire and performance wiring solutions from Raychem that are designed for industrial and commercial environments with the benefits of both polymeric insulated and mineral-insulated technologies. Uses include fire-rated applications such as, fire alarms and other critical-care system installations, as well as, low EMI, service and feeder retrofit, OEM, seal, and corrosion-resistance applications.

Loss of capital equipment and production time has prompted the development of equipment designed to withstand the destructive forces of a fire. When exposed to fire risk areas electrical wiring is in jeopardy. To ensure electrical power is available for critical circuit survival when it is needed, choose nVent's (formerly Pentair Thermal Management) Pryrotenax 2-hour Fire Rated Industrial Wire.

FRW 1850 Cable 2System 1850 Fire Rated MI Cable
Pyrotenax System 1850 is a mineral insulated (MI) 2-hour fire-rated wiring cable for critical and essential circuit protection. It consists of solid copper conductors in a continuous copper sheath, with magnesium powder insulation providing 600V class insulation. Applications include fire alarm wiring as well as wiring for other for critical life-safety circuits in high-rise buildings, subways, tunnels, airports, and health care facilities.

Unlike conventional cables, Pyrotenax System 1850 MI wiring cable requires no conduit protection. MI cable is ideal for Fire-Rated applications, such as fire alarm wiring, because only non-organic materials are used in its construction it is not subject to aging as a result of exposure to temperature or deterioration of insulation with time. Therefore, MI cable is allowed to be used under virtually any application conditions by both the NEC and CEC.

Pyrotenax System 1850 can be found in the following environments:

    • High-rise buildings – emergency feeders for fire pumps, elevators, smoke extraction and pressurization fans, fire alarm wiring, etc.
    • Hospitals and other institutions where mobility is limited, to preserve power and allow time for egress
    • Historic buildings where it can be installed unobtrusively, as well as to assure preservation of fire fighting systems
    • Tunnels and subways for smoke extraction fans, where its zero smoke properties make it unique
    • Airports, stadiums, hotels, banks, etc.

Additional information:
 -  Cable terminations are typically field installed
 -  Factory terminated cable sets are available in a range of sizes and lengths

Download IconSystem 1850 Fire Rated MI Downloads [PDF]


Datasheets [PDF]
  Sys 1850 Cable Datasheet
  Sys 1850 Cable Components Datasheet
  Sys 1850 Cable Jacketed Datasheet
  Cable Splice Datasheet
  Cable Terminations Datasheet
  Sys 1850 Cable Twisted Pair Datasheet

Installation Manuals [PDF]
  Sys 1850 Cable Installation Manual
  Sys 1850 Quickterm Installation Manual
  Sys 1850 Quickterm Size Up Installation Manual
  Sys 1850 Pyropak Installation Manual
  Sys 1850 Pyropak Twisted Pair Installation Manual

Additional Information [PDF]
  Tools Datasheet
  Sheathmaster User Manual
  Ratchet Stripper User Manual
  Pyropotter User Manual
  Cable Size Chart
  Cable Brochure
  Cable Design Guide
  Cable Catalog
  Cable Spec Sheet


1850 SE SystemSystem 1850 SE Service Entrance System
A Pyrotenax System 1850-SE installation consists of System 1850 2-hour firerated single conductor MI cable, with special terminations for service entrance applications, and enclosed ventilated cable tray. System 1850-SE MI cable is installed in an enclosed ventilated tray labeled along its length with warnings that this is a “live electrical service.”

System 1850-SE can be used in the following environments:

    • High-rise buildings
    • Health care facilities
    • Historic buildings
    • Airports, stadiums, hotels, banks etc

Sys 1850 SE Datasheet [PDF]
Sys 1850 SE Quickterm Installation Manual [PDF]
Sys 1850 SE Design Guide [PDF]





Nvent Raychem Pyrotenax Logo