Product Information

Specification

8 AWG 3C Pyrotenax MI Alloy 825 Sheated Nickel Clad CU SYS 2000 Fire Rated Cable 600V

Also Know As:

8/3C Pyrotenax Cable, 8/3C 2-hours Fire Rated Cable, 8/3C MI Alloy 825 Bare Copper Cable, Mineral Insulated Cable, 8/3C 2 hours sheated Fire rated cable, 8/3C Fire Rated Cable 600V, 8/3C 2000 Fire Rated Cable, 8/3C Sheated Nickel Clad Cable, 8/3C SYS 2000 Fire Rated Cable

Description:

• nVent PYROTENAX System 2000 mineral insulated (MI) wiring cable is a range of MI wiring cable, with an Alloy 825 sheath and nickel-clad copper conductors (600 V). It has a continuous exposure temperature of 1238 °F/670 °C and can withstand rapid-rise temperature excursions to 2000 °F/1093 °C. The inorganic cable construction provides superior fire resistance under conditions of both high heat flux and high temperature. Common applications include the supply of power to motor operated valves during fire exposure ensuring that valves can be safely controlled and closed when required. It is typically supplied as a factory-assembled wiring unit complete with terminations at each end.

• nVent PYROTENAX System 2000 fire-rated mineral insulated (MI) wiring cables facilitate the controlled shutdown of critical processes and systems in the event of a hydrocarbon flash fire in both nonhazardous and hazardous locations.

• Using the electrical test procedure described in UL2196, System 2000 MI cable maintains electrical circuit integrity for 30 minutes during exposure to the UL 1709 fire test. The UL 1709 test, referenced in API 2218, replicates an intense hydrocarbon fire, reaching 2000°F (1093°C) in 5 minutes when subjected to a heat flux of 65,000 BTU / ft2 hr (200 kW / m2) in an enclosed furnace.

• System 2000 wiring cable is constructed with an Alloy 825 sheath and nickel-clad copper conductors that allow continuous exposure temperatures to 1238°F (670°C) and withstand rapid- rise temperature excursions to 2000°F (1093°C). In addition, the sheath provides durability in areas where corrosives may be present and the nickel-clad copper conductors permit higher current ratings compared with nickel conductors. MI cable is made of inorganic materials and provides zero smoke generation, zero fuel contribution, and zero flame spread. Highly compacted MgO insulation prevents the flow and transmission of explosive gases through the wiring cables.

Features:

• Petrochemical – to protect critical systems in the event of a hydrocarbon flash fire
• Petrochemical and mining – in hazardous areas to provide a gas path block
• Manufacturing – in areas of extreme heat, around furnaces, etc.
• Tunnels and confined spaces – MI cables do not burn; no smoke generated
• Nuclear and fossil fuel power generation plants – for wiring to equipment where heat or radiation may be of concern
• Pulp and paper – where corrosives are present

SYSTEM 2000

System 2000 wiring cable is typically supplied as a factory-assembled Duoterm unit complete with terminations at each end, allowing for immediate installation in the field. In hazardous areas, the simplified installation of MI cable means that conduit systems and explosion proof seals are not required; simply connect the cable directly to the equipment or junction box.

Construction:

• Sheath: Alloy 825
• Insulation: Magnesium oxide (MgO)
• Conductor type: Nickel-clad copper
• Insulation voltage rating: 600 V
• Conductor size: 16 AWG – 2 AWG (Physical conductor size is larger due to nickel cladding; see Table below)
• Number of conductors: 1, 2, 3, 4, or 7 standard (Contact nVent for custom configurations)

Temperature Rating:

• Continuous exposure temperature: 1238°F (670°C)
• Maximum exposure temperature: 2000°F (1093°C)

Specification:

• Part No: 637-8/3NC825
• Conductor Size: 8 AWG
• Allowable ampacity NEC 75°C / 90°C (A): 50 / 55
• Nominal coil length3 [ft / (m)]: 316 / (96)
• Nominal weight: 768 lbs/1000ft
• NPT gland size (in): 1
• Physical conductor size (AWG): 7

*Data provided on this page is subject to change based on different manufacturers' variances

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