Marlew

series AI

300 Volt
Cu 20 up to 12 AWG
PVC 105°C / PVC
UL 1424 FPL

Electronic instrumentation, analog and digital signal circuits (4-20mA). Specially designed for fire detection warning alarms Installed in conduits, trays, cable ladders, in direct open air or indoors, buried in a trench or in ducts.

Features

  • Temperature rating: 105°C

  • Voltage rating: 300 Volt

  • Construction requirements: As per UL 1424 type FPL

  • Conductor requirements: As per ASTM B8 Class B

  • Conductor: Annealed electrolytic copper, 7-wire stranding

  • Insulation: PVC

  • Lay length: 50mm (20 twists/m)

  • Unshielded pair: Polyester tape helical wrap

  • Shield: Aluminium-polyester tape wrap plus tinned-copper braid

  • Sheath: PVC (Low Smoke Zero Halogen - Halogen Free Flame Retardant) flame retardant, sunlight, and oil resistant

  • Fire requirements: As per UL 1685

  • Hydrocarbons requirements: As per NFC 32-200 – ASTM D 1239

  • Oils requirements: As per ICEA S 73-532

  • Outdoors requirements: As per UL 2556 (UV rays)

  • NEC code (NFPA 70): Art. 760 FPL

Fire-retardant

Fire-retardant

Hydrocarbon resistant

Hydrocarbon resistant

Mineral oil resistant

Mineral oil resistant

UV resistant

UV resistant

Special marking

Special marking

Tray cable

Tray cable

Identification

Standard
Sheath Conductors
Pair
Triad
Quad

Instalation

falta label en campo?
falta label en campo?
falta label en campo?

Constructive variants

The information provided corresponds to the standard version, and different alternatives of insulation and / or covering materials can be used upon request.

ELECTRICAL CHARACTERISTICS

Conductor’s gauge Cable structure Shield type Electrical resistance in D.C. at 20°C Mutual capacitance between conductors Characteristic impedance Mutual inductance
AWG ohm/km pf/m ohm microH/km
20Pair / triad / quadUnshielded35.789876588
Shielded18041
18Pair / triad / quadUnshielded22.788588641
Shielded16550
16Pair / triad / quadUnshielded14.2511266544
Shielded21035
14Pair / triad / quadUnshielded8.9410968553
Shielded20337
12Pair / triad / quadUnshielded5.6312162522
Shielded22833

pF/m = Mutual Capacitance between conductors, expressed in picofarad per meter / uH/km = Mutual inductance between conductors, expressed in microhenry per kilometer

DIMENSIONS & WEIGHT

Pair

AWG Shield Drain wire External diameter mm Weight kg/km Code Mat Number
20----4.930AI 1P20810010030
Yes225.034AI-O 1P20810010040
18----5.640AI 1P18810010050
Yes205.746AI-O 1P18810010060
16----6.253AI 1P16810010070
Yes186.362AI-O 1P16810010080
14----7.782AI 1P14810010090
Yes187.891AI-O 1P14810010100
12----8.7112AI 1P12810010110
Yes188.8121AI-O 1P12810010120

Triad - Shielded

AWG Drain wire External diameter mm Weight kg/km Code Mat Number
20225.342AI-O 1T20810010140
18206.058AI-O 1T18810010150
16186.779AI-O 1T16810010160
14188.3119AI-O 1T14810010170
12189.3162AI-O 1T12810010180

Quad - Shielded

AWG Drain wire External diameter mm Weight kg/km Code Mat Number
20225.750AI-O 1Q20810010200
18206.570AI-O 1Q18810010210
16187.5102AI-O 1Q16810010220
14189.0147AI-O 1Q14810010230
121810.7216AI-O 1Q12810010240