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XT-331 Unarmoured Instrumentation to IEC60092-376 & IEC60331-21

XT-331 Fire resistant instrumentation cables provide circuit integrity and weight savings for ship wiring. Due to their increased safety performance XT-331 cables have been widely adopted by the petrochemical and process control industries. XT-C-331 offers collective foil screening whilst XT-I-331 includes an additional foil screen around each pair to prevent crosstalk.

Technical Information

Voltage Rating:250V (300V)
Conductor Stranding:IEC 60228 Class 2, plain copper
Temperature Rating:-40°C to +85°C 
Bending Radius Static:6 x overall diameter
Fire Resistant:IEC 60331-21
Flame Retardant:IEC 60332-1-2, IEC 60332-3-22 Cat A 
Smoke Emission:IEC 61034-1 & 2
Halogen Emission:IEC 60754-1 & 2
Manufactured To:IEC 60092 series 
3rd Party Approvals:Lloyds, DNV, ABS, BV and Rina.

Construction

XT-C-331: Copper conductors, mica glass tape, XLPE insulation, aluminium/polyester foil screen and drain wire, SHF 1 Low Smoke Halogen Free sheath.

XT-I-331: Copper conductors, mica glass tape, XLPE insulation, each pair aluminium/polyester foil screened with a drain wire, pairs laid up, collective aluminium foil screen and drain wire, SHF 1 Low Smoke Halogen Free sheath.

Electrical Characteristics

Conductor Size:0.5mm² 0.75mm²
Conductor Resistance:<36.0 Ohms/km<26.7 Ohms/km
Pair Capacitance @ 800Hz:  
Collective Screen:55nF/km50nF/km
Individual Screen:55nF/km70nF/km
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Approvals may vary between manufacture brands. Please tell us at time of enquiry if you have a specific requirement.

Part codes below are for cables with a grey sheath.

For a blue sheath please suffix the part code with '01' or for a black sheath please suffix the part code with '00'.

Part No.No. of PairsSize mm²Weight Kg/KmO/D mm
Collectively Screened Pairs
XTC0501PM10.5040.006.5
XTC0502PM20.5070.007.5
XTC0504PM40.50115.0011.5
XTC0505PM50.50150.0011.8
XTC0507PM70.50175.0012.0
XTC0508PM80.50205.0013.5
XTC0510PM100.50260.0015.5
XTC0512PM120.50290.0016.5
XTC0514PM140.50335.0017.0
XTC0519PM190.50430.0019.5
XTC0524PM240.50540.0023.0
XTC0537PM370.50875.0027.5
XTC0701PM10.7555.006.5
XTC0702PM20.7585.009.0
XTC0704PM40.75145.0011.5
XTC0707PM70.75220.0013.0
XTC0708PM80.75255.0015.5
XTC0710PM100.75315.0017.5
XTC0712PM120.75360.0018.0
XTC0714PM140.75420.0019.5
XTC0719PM190.75555.0021.0
XTC0724PM240.75675.0024.5
Individually Screened Pairs
XTI0502PM20.5095.009.5
XTI0504PM40.50145.0010.0
XTI0505PM50.50183.0011.5
XTI0507PM70.50220.0012.5
XTI0508PM80.50245.0014.0
XTI0510PM100.50300.0016.5
XTI0512PM120.50335.0017.5
XTI0514PM140.50400.0018.0
XTI0519PM190.50535.0020.5
XTI0524PM240.50650.0022.5
XTI0702PM20.75115.0010.0
XTI0704PM40.75175.0011.5
XTI0707PM70.75270.0013.5
XTI0708PM80.75315.0015.0
XTI0710PM100.75385.0016.5
XTI0712PM120.75445.0019.0
XTI0714PM140.75525.0020.5
XTI0719PM190.75675.0022.5
XTI0724PM240.75835.0025.5