Telephone Cables

 Solid PE Insulated & AP Sheathed (ALPETH) Air Core Cables to GR-421

Mechanical and Thermal Properties

Temperature range during operation (fixed state): -30°C – +70°C
Temperature range during installation (mobile state): -20°C – +50°C
Minimum bending radius: 10 x Overall Diameter (unarmoured cables);15 x Overall Diameter (armoured cables)

Colour Code
Standard colour code is per GR-421 given in Colour Code Chart

Dimensions And Weight
Solid PE Insulated and AP Sheathed (ALPETH) Air Core Cable to GR-421

Cable Code

Number of Pairs

Nominal Sheath Thickness mm/inch

Nominal Overall Diameter mm/inch

Nominal Weight kg/km / lbs/kft

0.4mm Conductor, 0.75mm Insulated Wire
TP421-2Y(A)2Y-25P04 25 1.5/0.059 12.0/0.47 141/95
TP421-2Y(A)2Y-50P04 50 1.5/0.059 14.5/0.57 231/155
TP421-2Y(A)2Y-100P04 100 1.7/0.067 18.5/0.73 394/265
TP421-2Y(A)2Y-200P04 200 1.7/0.067 24.6/0.97 729/490
TP421-2Y(A)2Y-300P04 300 1.8/0.071 28.0/1.10 1034/695
TP421-2Y(A)2Y-400P04 400 1.9/0.075 33.0/1.30 1346/905
TP421-2Y(A)2Y-600P04 600 2.1/0.083 38.1/1.50 1964/1320
TP421-2Y(A)2Y-900P04 900 2.2/0.087 45.7/1.80 2931/1970
TP421-2Y(A)2Y-1200P04 1200 2.4/0.094 53.3/2.10 3868/2600
TP421-2Y(A)2Y-1500P04 1500 2.5/0.098 58.4/2.30 4791/3220
TP421-2Y(A)2Y-1800P04 1800 2.5/0.098 63.5/2.50 5713/3839
TP421-2Y(A)2Y-2000P04 2000 2.5/0.098 66.0/2.60 6348/4266
TP421-2Y(A)2Y-2100P04 2100 2.5/0.098 68.6/2.70 6636/4459
0.5mm Conductor, 0.9mm Insulated Wire
TP421-2Y(A)2Y-25P05 25 1.5/0.059 13.2/0.52 195/131
TP421-2Y(A)2Y-50P05 50 1.5/0.059 16.5/0.65 330/222
TP421-2Y(A)2Y-100P05 100 1.7/0.067 21.8/0.86 590/396
TP421-2Y(A)2Y-200P05 200 1.7/0.067 28.0/1.10 1100/739
TP421-2Y(A)2Y-300P05 300 1.7/0.067 35.6/1.40 1620/1089
TP421-2Y(A)2Y-400P05 400 1.8/0.071 38.1/1.50 2120/1425
TP421-2Y(A)2Y-600P05 600 2.0/0.079 48.3/1.90 3120/2097
TP421-2Y(A)2Y-900P05 900 2.2/0.087 55.9/2.20 4580/3078
TP421-2Y(A)2Y-1200P05 1200 2.4/0.094 63.5/2.50 6070/4079
TP421-2Y(A)2Y-1500P05 1500 2.5/0.098 71.2/2.80 7530/5060
TP421-2Y(A)2Y-1600P05 1600 2.5/0.098 76.2/3.00 7700/5174
TP421-2Y(A)2Y-1800P05 1800 2.5/0.098 78.7/3.10 8985/6038
0.63mm Conductor, 1.15mm Insulated Wire
TP421-2Y(A)2Y-25P063 25 1.5/0.059 15.5/0.61

275/185

TP421-2Y(A)2Y-50P063 50 1.5/0.059 20.1/0.79

476/320

TP421-2Y(A)2Y-100P063 100 1.7/0.067 28.0/1.10

885/595

TP421-2Y(A)2Y-200P063 200 1.7/0.067 38.1/1.50

1666/1120

TP421-2Y(A)2Y-300P063 300 1.7/0.067 43.2/1.70

2455/1650

TP421-2Y(A)2Y-400P063 400 1.8/0.071 48.3/1.90

3229/2170

TP421-2Y(A)2Y-600P063 600 1.9/0.075 58.4/2.30

4791/3220

TP421-2Y(A)2Y-900P063 900 2.1/0.083 71.2/2.80

7082/4759

TP421-2Y(A)2Y-1200P063 1200 2.2/0.087 81.3/3.20

9388/6308

0.9mm Conductor, 1.5mm Insulated Wire
TP421-2Y(A)2Y-25P09 25 1.5/0.059 20.1/0.79

476/320

TP421-2Y(A)2Y-50P09 50 1.5/0.059 28.0/1.10

885/595

TP421-2Y(A)2Y-100P09 100 1.7/0.067 38.1/1.50

1651/1109

TP421-2Y(A)2Y-200P09 200 1.7/0.067 48.3/1.90

3199/2150

TP421-2Y(A)2Y-300P09 300 1.7/0.067 61.0/2.40

4746/3189

Fig 8 Solid PE Insulated & AP Sheathed (Alpeth) Air Core Cable to GR-421

Cable Code Number
of
Pairs
Support Messenger
Wire Diameter
mm/inch
Nominal Sheath
Thickness
mm/inch
Nominal Overall
Dimension
mm/inch
Nominal Weight
kg/km / lbs/kft
0.4mm Conductor, 0.75mm Insulated Wire

TP421-2Y(A)2Y-25P04-SS

25

7/6.35 / 7/0.25

1.5/0.059

14.2/0.56

379/255

TP421-2Y(A)2Y-50P04-SS

50

7/6.35 / 7/0.25

1.5/0.059

16.8/0.66

469/315

TP421-2Y(A)2Y-100P04-SS

100

7/6.35 / 7/0.25

1.7/0.067

20.6/0.81

632/425

TP421-2Y(A)2Y-200P04-SS

200

7/6.35 / 7/0.25

1.7/0.067

25.4/1.00

952/640

TP421-2Y(A)2Y-300P04-SS

300

7/6.35 / 7/0.25

1.8/0.071

30.5/1.20

1257/845

0.5mm Conductor, 0.9mm Insulated Wire

TP421-2Y(A)2Y-25P05-SS

25

7/6.35 / 7/0.25

1.5/0.059

16.0/0.63

431/290

TP421-2Y(A)2Y-50P05-SS

50

7/6.35 / 7/0.25

1.5/0.059

19.3/0.76

565/380

TP421-2Y(A)2Y-100P05-SS

100

7/6.35 / 7/0.25

1.7/0.067

24.6/0.97

826/555

TP421-2Y(A)2Y-200P05-SS

200

7/6.35 / 7/0.25

1.7/0.067

30.5/1.20

1317/885

0.63mm Conductor, 1.15mm Insulated Wire

TP421-2Y(A)2Y-25P063-SS

25

7/6.35 / 7/0.25

1.5/0.059

17.8/0.70

513/345

TP421-2Y(A)2Y-50P063-SS

50

7/6.35 / 7/0.25

1.5/0.059

22.4/0.88

714/480

TP421-2Y(A)2Y-100P063-SS

100

7/6.35 / 7/0.25

1.7/0.067

30.5/1.20

1116/750

0.9mm Conductor, 1.5mm Insulated Wire

TP421-2Y(A)2Y-25P09-SS

25

7/6.35 / 7/0.25

1.5/0.059

22.4/0.88

714/480

TP421-2Y(A)2Y-50P09-SS

50

7/6.35 / 7/0.25

1.5/0.059

30.5/1.20

1108/745

Solid PE Insulated & PAP Sheathed Air Core Cable to GR-421

Cable Code Number
of
Pairs
Nominal Sheath Thickness Nominal Overall
Diameter
mm/inch
Nominal
Weight
kg/km / lbs/kft
Inner Outer
mm/inch mm/inch
0.4mm Conductor, 0.75mm Insulated Wire

TP421-2Y2Y(A)2Y-50P04

50

1.2/0.047

1.5/0.059

16.0/0.630

275/185

TP421-2Y2Y(A)2Y-100P04

100

1.2/0.047

1.5/0.059

20.0/0.787

446/300

TP421-2Y2Y(A)2Y-200P04

200

1.2/0.047

1.5/0.059

25.0/0.984

781/525

TP421-2Y2Y(A)2Y-400P04

400

1.2/0.047

1.5/0.059

34.0/1.34

1443/970

TP421-2Y2Y(A)2Y-600P04

600

1.6/0.063

2.0/0.079

40.0/1.57

2098/1410

TP421-2Y2Y(A)2Y-900P04

900

1.6/0.063

2.0/0.079

48.0/1.89

3043/2045

TP421-2Y2Y(A)2Y-1200P04

1200

1.6/0.063

2.0/0.079

54.0/2.13

4010/2695

0.5mm Conductor, 0.9mm Insulated Wire
TP421-2Y2Y(A)2Y-25P05

25

1.2/0.047

1.5/0.059

16.0/0.630

251/169

TP421-2Y2Y(A)2Y-50P05

50

1.2/0.047

1.5/0.059

18.0/0.709

380/255

TP421-2Y2Y(A)2Y-100P05

100

1.2/0.047

1.5/0.059

23.0/0.906

640/430

TP421-2Y2Y(A)2Y-200P05

200

1.6/0.063

1.8/0.071

30.0/1.18

1146/770

TP421-2Y2Y(A)2Y-300P05

300

1.6/0.063

1.8/0.071

36.0/1.42

1682/1130

TP421-2Y2Y(A)2Y-400P05

400

1.6/0.063

2.0/0.079

41.0/1.61

2195/1475

TP421-2Y2Y(A)2Y-600P05

600

1.8/0.071

2.3/0.090

49.0/1.93

3215/2160

TP421-2Y2Y(A)2Y-900P05

900

2.0/0.079

2.5/0.098

59.0/2.32

4747/3190

TP421-2Y2Y(A)2Y-1200P05

1200

2.2/0.079

2.7/0.106

67.0/2.64

6198/4165

0.63mm Conductor, 1.15mm Insulated Wire
TP421-2Y2Y(A)2Y-25P063

25

1.2/0.047

1.5/0.059

17.0/0.669

320/215

TP421-2Y2Y(A)2Y-50P063

50

1.2/0.047

1.5/0.059

22.0/0.866

535/360

TP421-2Y2Y(A)2Y-100P063

100

1.2/0.047

1.5/0.059

28.0/1.10

945/635

TP421-2Y2Y(A)2Y-200P063

200

1.6/0.063

2.0/0.079

37.0/1.46

1771/1190

TP421-2Y2Y(A)2Y-400P063

400

1.8/0.071

2.3/0.091

51.0/2.01

3363/2260

TP421-2Y2Y(A)2Y-600P063

600

2.0/0.079

2.5/0.098

62.0/2.44

5015/3370

0.9mm Conductor, 1.5mm Insulated Wire
TP421-2Y2Y(A)2Y-25P09

25

1.2/0.047

1.5/0.059

21.0/0.827

528/355

TP421-2Y2Y(A)2Y-50P09

50

1.2/0.047

1.5/0.059

27.0/1.06

930/625

TP421-2Y2Y(A)2Y-100P09

100

1.6/0.063

2.0/0.079

36.0/1.42

1741/1170

TP421-2Y2Y(A)2Y-200P09

200

1.8/0.071

2.3/0.091

50.0/1.97

3319/2230

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