SPEC 48306
BzII DIN 48201 Messenger Wire

Construction:
Bronze BzII (CuMg) stranded conductor per DIN 48201 part 2
Applications and Features:
For use in High Speed Rail systems of domestic and international standard application, primarily as electro-mechanical current carrying cable and wire for overhead contact systems (OCS). Southwire’s messenger wire is designed for long service life with the ability to maintain rugged strength through sustained performance.
Stranded Wrought Copper Alloy BzII (CuMg) Domestically manufactured to international standards Flexible to Wind and Vibration Durable and Reliable Support High Tensile Strength and Breaking Load RoHS/Proposition 65 Compliant
Specifications:
Table 1 – Weights and Measurements
Stock Code | Nominal Cross Section (mm²) | Calculated Cross Section (mm²) | Number of Wires | Diameter per Wire (mm) | Calculated Conductor Diameter (mm) | Weight (kg/km) | Breaking Load (kN) | Continuous Current Carrying Capacity (A) |
---|---|---|---|---|---|---|---|---|
TBA | 10 | 10.02 | 7 | 1.35 | 4.1 | 90 | 5.88 | 75 |
TBA | 16 | 15.89 | 7 | 1.70 | 5.1 | 143 | 9.33 | 100 |
457418 | 25 | 24.25 | 7 | 2.10 | 6.3 | 218 | 14.24 | 130 |
TBA | 35 | 34.36 | 7 | 2.50 | 7.5 | 310 | 20.17 | 160 |
TBA | 50 | 49.48 | 7 | 3.00 | 9.0 | 446 | 28.58 | 200 |
TBA | 50 | 48.35 | 19 | 1.80 | 9.0 | 437 | 28.39 | 200 |
649155 | 70 | 65.81 | 19 | 2.10 | 10.5 | 596 | 38.64 | 245 |
726691 | 95 | 93.27 | 19 | 2.50 | 12.5 | 845 | 54.76 | 305 |
457419 | 120 | 116.99 | 19 | 2.80 | 14.0 | 1060 | 67.57 | 350 |
TBA | 150 | 147.11 | 37 | 2.25 | 15.8 | 1337 | 86.37 | 410 |
TBA | 185 | 181.62 | 37 | 2.50 | 17.5 | 1649 | 106.63 | 465 |
TBA | 240 | 242.54 | 61 | 2.25 | 20.3 | 2209 | 142.40 | 560 |
TBA | 300 | 299.43 | 61 | 2.50 | 22.5 | 2725 | 175.80 | 635 |
TBA | 400 | 400.14 | 61 | 2.89 | 26.0 | 3640 | 231.12 | 765 |
TBA | 500 | 499.83 | 61 | 3.23 | 29.1 | 4545 | 288.70 | 880 |
Reference values for continuous current- carrying capacity are valid up to 60 Hz at the given wind velocity of 0,6 m/s and sun impact (for Germany) for a starting ambient temperature of 35°C and a final temperature of the conductor of 70° C. For special environmental conditions (calm) the values have to be reduced by about 30%.
Other designs: for example international standards or customer specifications - on request
Revision: 1.000.012
Updated On: June 17, 2025, 2 p.m. UTC