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BS 5308 Part 1 Type 2 Armoured LSHF Instrumentation

Low Smoke Halogen Free BS 5308 cables are ideal for use in commercial and industrial applications where smoke/toxic gas release is a problem in the event of a fire and there is a risk of mechanical damage. Although they were originally designed for instrumentation applications BS 5308 cables are now used within a wide variety of industries including commercial building management control.

BS 5308 cables are available with collective aluminium tape screening (CAT)or individual and collective aluminium tape screens (ICAT) to prevent electrical interference and crosstalk.

Technical Information

Voltage Rating:300/500V
Temperature Rating:+90°C (minimum 0°C for installation)
Conductor Stranding:IEC 60228 Class 1, 2 or 5 plain copper conductors
L/R Ratio: 
0.5mm² & 0.75mm²:25 µH/Ohm
1.5mm²:40 µH/Ohm
Flame Retardant:IEC 60332-1-2, IEC 60332-3-24 Cat C
Smoke Emission:IEC 61034-1 & 2
Halogen Emission:IEC 60754-1 & 2
Manufactured Generally To:BS 5308 Part 1


Type: CAT – Collective Aluminium Tape Screen

Plain annealed copper wire conductors to IEC 60228, class 1, 2 or 5, XLPE insulation, laid up as cores or twisted into pairs or triples, overall aluminium/polyester foil screen and 0.5mm² tinned copper drain wire, PE bedding, GSWA armour, LSHF sheath – black or blue.

Type: ICAT – Individual & Collective Aluminium Tape Screen

Plain annealed copper wire conductors to IEC 60228, class 1, 2 or 5, XLPE insulation, cores twisted into pairs or triples, each pair aluminium/polyester foil screen and 0.5mm² tinned copper drain wire, units laid up, collective aluminium/polyester foil screen and 0.5mm² tinned copper drain wire, PE bedding, GSWA armour, LSHF sheath – black or blue.

Pair Identification

CAT:  Cables up to 50 pair are colour coded in accordance with BS 5308 part 1, appendix A. Two pair cables are twisted as a quad and coloured black, blue, green, brown.

  Each pair black, blue and numbered.

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Increased flame retardant versions to IEC 60332-3-24 Cat C and fire resistant versions to IEC 60331-21 are available on request.

0.6/1kV versions can be manufactured to order.

Part No.Pairs x Size mm²Conductor Stranding mmScreen TypeColourWeight kg/kmO/D mmCap. pF/mConductor Resistance Ohms/Km
Collectively Screened Pairs
5312O05010H1 x 2 x 0.516/0.20CATBLACK237.0011.211539.70
5312O05011H1 x 2 x 0.516/0.20CATBLUE237.0011.211539.70
5312O05020H2 x 2 x 0.516/0.20CATBLACK287.0012.111539.70
5312O05021H2 x 2 x 0.516/0.20CATBLUE287.0012.111539.70
5312O05050H5 x 2 x 0.516/0.20CATBLACK530.0017.77539.70
5312O05051H5 x 2 x 0.516/0.20CATBLUE530.0017.77539.70
5312O05100H10 x 2 x 0.516/0.20CATBLACK917.0022.77539.70
5312O05101H10 x 2 x 0.516/0.20CATBLUE917.0022.77539.70
5312O05200H20 x 2 x 0.516/0.20CATBLACK1,550.0028.97539.70
5312O05201H20 x 2 x 0.516/0.20CATBLUE1,550.0028.97539.70
5312O07010H1 x 2 x 0.7524/0.20CATBLACK260.0011.411526.50
5312O07011H1 x 2 x 0.7524/0.20CATBLUE260.0011.411526.50
5312O07020H2 x 2 x 0.7524/0.20CATBLACK310.0012.611526.50
5312O07021H2 x 2 x 0.7524/0.20CATBLUE310.0012.611526.50
5312O07050H5 x 2 x 0.7524/0.20CATBLACK675.0019.07526.50
5312O07051H5 x 2 x 0.7524/0.20CATBLUE675.0019.07526.50
5312O07100H10 x 2 x 0.7524/0.20CATBLACK1,170.0025.07526.50
5312O07101H10 x 2 x 0.7524/0.20CATBLUE1,170.0025.07526.50
5312O07200H20 x 2 x 0.7524/0.20CATBLACK1,725.0031.07526.50
5312O07201H20 x 2 x 0.7524/0.20CATBLUE1,725.0031.07526.50
5312O10010HM-C11 x 2 x 1.57/0.53CATBLACK320.0012.712012.30
5312O15010H1 x 2 x 1.57/0.53CATBLACK320.0012.712012.30
5312O15011H1 x 2 x 1.57/0.53CATBLUE320.0012.712012.30
5312O15011T  CATBLUE365.00   
5312O15020H2 x 2 x 1.57/0.53CATBLACK413.0014.112012.30
5312O15021H2 x 2 x 1.57/0.53CATBLUE413.0014.112012.30
5312O15050H5 x 2 x 1.57/0.53CATBLACK910.0021.98512.30
5312O15051H5 x 2 x 1.57/0.53CATBLUE910.0021.98512.30
5312O15100H10 x 2 x 1.57/0.53CATBLACK1,383.0028.28512.30
5312O15101H10 x 2 x 1.57/0.53CATBLUE1,383.0028.28512.30
5312O15200H20 x 2 x 1.57/0.53CATBLACK2,400.0035.88512.30
5312O15201H20 x 2 x 1.57/0.53CATBLUE2,400.0035.88512.30
5312O25010TH*1 x 2 x 1.57/0.53CATBLACK320.0012.712012.30
5312O25025M1 x 2 x 1.57/0.53CATBLACK320.0012.712012.30
Individually & Collectively Screened Pairs
5312I05020H2 x 2 x 0.516/0.20ICATBLACK457.0016.811539.70
5312I05021H2 x 2 x 0.516/0.20ICATBLUE457.0016.811539.70
5312I05050H5 x 2 x 0.516/0.20ICATBLACK757.0020.911539.70
5312I05051H5 x 2 x 0.516/0.20ICATBLUE757.0020.911539.70
5312I05100H10 x 2 x 0.516/0.20ICATBLACK1,293.0027.911539.70
5312I05101H10 x 2 x 0.516/0.20ICATBLUE1,293.0027.911539.70
5312I05200H20 x 2 x 0.516/0.20ICATBLACK2,237.0034.311539.70
5312I05201H20 x 2 x 0.516/0.20ICATBLUE2,237.0034.311539.70
5312I07020H2 x 2 x 0.7524/0.20ICATBLACK500.0017.611526.50
5312I07021H2 x 2 x 0.7524/0.20ICATBLUE500.0017.611526.50
5312I07050H5 x 2 x 0.7524/0.20ICATBLACK935.0022.011526.50
5312I07051H5 x 2 x 0.7524/0.20ICATBLUE935.0022.011526.50
5312I07100H10 x 2 x 0.7524/0.20ICATBLACK1,630.0029.511526.50
5312I07101H10 x 2 x 0.7524/0.20ICATBLUE1,630.0029.511526.50
5312I07200H20 x 2 x 0.7524/0.20ICATBLACK2,410.0037.811526.50
5312I07201H20 x 2 x 0.7524/0.20ICATBLUE2,410.0037.811526.50
5312I15020H2 x 2 x 1.57/0.53ICATBLACK737.0020.412012.30
5312I15021H2 x 2 x 1.57/0.53ICATBLUE737.0020.412012.30
5312I15050H5 x 2 x 1.57/0.53ICATBLACK1,187.0025.412012.30
5312I15051H5 x 2 x 1.57/0.53ICATBLUE1,187.0025.412012.30
5312I15100H10 x 2 x 1.57/0.53ICATBLACK1,847.0033.512012.30
5312I15101H10 x 2 x 1.57/0.53ICATBLUE1,847.0033.512012.30
5312I15200H20 x 2 x 1.57/0.53ICATBLACK3,053.0042.612012.30
5312I15201H20 x 2 x 1.57/0.53ICATBLUE3,053.0042.612012.30

Capacitance figures are mutual @ 1kHz.

Larger pair counts and triple configurations are available on request.