Safety and Innovation Backed By Experience

Southwire is your full solutions provider for passenger and freight rail products and solutions. Whether you need Overhead Contact System (OCS) products, DC traction power feed for OCS and third rails systems, station and tunnel power and lighting products, signaling, or installation tools and equipment; Southwire has you covered. Our wire and cable products are proudly manufactured in the U.S.A. The Douglas, GA facility is the heart of wire and cable production for the mass transit vertical and one of Southwire's 13 U.S manufacturing sites.

Commitment to Sustainability

We collaborate with our customers to enhance product transparency and support LEED certification efforts. Southwire is a U.S. Green Building Council (USGBC) Member. Over 100 of our products have independently verified Environmental Product Declarations (EPDs), representing over 90% of our wire and cable product categories sold.


At Southwire, we seek to discover, develop and distribute strong and sustainable solutions that exceed expectations. We leverage five core tenets that guide and ground our efforts: Growing Green, Living Well, Giving Back, Doing Right, Building Worth.




Achieving The Copper Mark demonstrates the highest standard of responsible production in the copper industry, a commitment to continuous improvement, and contribution toward the UN Sustainable Development Goals. Three of Southwire’s manufacturing sites – Denton, TX; Bremen, IN; Lafayette, IN - have received The Copper Mark. 


Southwire Transit Products

Transit_LineCard_image.jpg 1

Aerial/Tunnel Vital Signal Cable

Railroad circuit signal applications.Spec sheet coming soon.

Learn More
2

Traction Power Cable LSZH

DC Traction power feed to OCS and third rail systems.

Learn More
3

600V Control Cable

Transit systems and tunnels to perform a variety of control and related functions.

Learn More
4

1000V Power Cable

Transit systems and tunnels to perform a variety of control and related functions.

Learn More
5

Single Conductor LSZH

Station and tunnel power and lighting applications.

Learn More
6

Overhead Contact Wire

DC and AC power feed for electrified rail and transit.

Learn More
7

Messenger Wire

Supports contact wire and dropper wire in overhead catenary systems.

Learn More
8

Dropper Wire

Vertial connection between the messenger and contact wire. Spec sheet coming soon.

Learn More
9

Bare Overhead Conductor

Supports contact wire and dropper wire in overhead catenary systems.

Learn More
10

Traction Power Cable LSZH

DC Traction power feed to OCS and third rail systems.

Learn More
11

Diesel Locomotive Cable

Power and control circuits and motor leads.

Learn More
12

Armored MV Cable 5-35kV

Armored infeed AC power.

Learn More
13

1000V Power Cable

Transit systems and tunnels to perform a variety of control and related functions.

Learn More
14

Bare Overhead Conductor

Supports contact wire and dropper wire in overhead catenary systems.

Learn More
15

MV Tray Cable 5-35kV

Infeed AC power.

Learn More
16

Overhead Contact Wire

DC and AC power feed for electrified rail and transit.

Learn More
17

Messenger Wire

Supports contact wire and dropper wire in overhead catenary systems.

Learn More
18

Dropper Wire

Vertial connection between the messenger and contact wire. Spec sheet coming soon.

Learn More
19

Bare Overhead Conductor

Supports contact wire and dropper wire in overhead catenary systems.

Learn More
20

MV Tray Cable 5-35kV

Infeed AC power.

Learn More
21

Traction Power Cable LSZH

DC Traction power feed to OCS and third rail systems.

Learn More

1 Aerial/Tunnel Vital Signal Cable

Railroad circuit signal applications.Spec sheet coming soon.

Learn More

2 Traction Power Cable LSZH

DC Traction power feed to OCS and third rail systems.

Learn More

3 600V Control Cable

Transit systems and tunnels to perform a variety of control and related functions.

Learn More

4 1000V Power Cable

Transit systems and tunnels to perform a variety of control and related functions.

Learn More

5 Single Conductor LSZH

Station and tunnel power and lighting applications.

Learn More

6 Overhead Contact Wire

DC and AC power feed for electrified rail and transit.

Learn More

7 Messenger Wire

Supports contact wire and dropper wire in overhead catenary systems.

Learn More

8 Dropper Wire

Vertial connection between the messenger and contact wire. Spec sheet coming soon.

Learn More

9 Bare Overhead Conductor

Supports contact wire and dropper wire in overhead catenary systems.

Learn More

10 Traction Power Cable LSZH

DC Traction power feed to OCS and third rail systems.

Learn More

11 Diesel Locomotive Cable

Power and control circuits and motor leads.

Learn More

12 Armored MV Cable 5-35kV

Armored infeed AC power.

Learn More

13 1000V Power Cable

Transit systems and tunnels to perform a variety of control and related functions.

Learn More

14 Bare Overhead Conductor

Supports contact wire and dropper wire in overhead catenary systems.

Learn More

15 MV Tray Cable 5-35kV

Infeed AC power.

Learn More

16 Overhead Contact Wire

DC and AC power feed for electrified rail and transit.

Learn More

17 Messenger Wire

Supports contact wire and dropper wire in overhead catenary systems.

Learn More

18 Dropper Wire

Vertial connection between the messenger and contact wire. Spec sheet coming soon.

Learn More

19 Bare Overhead Conductor

Supports contact wire and dropper wire in overhead catenary systems.

Learn More

20 MV Tray Cable 5-35kV

Infeed AC power.

Learn More

21 Traction Power Cable LSZH

DC Traction power feed to OCS and third rail systems.

Learn More

Get expedited OCS solutions with Southwire SPEED ™ Services!


Southwire SPEED ™ Servicesis now offering a guaranteed 4-week lead time for 500, 750, and 1000 MCM Traction Power cable as well as for Hard Drawn Copper Contact Wire and Alloy 80 CuMg. Southwire SPEED ™ Services can help reduce downtime in cases of emergency repair, and assist with special work requirements, short rebuild segments, airbreaks, and more. Read below for more information!

 SPEED ™ Services Traction Power Cable for Mass Transit  SPEED ™ Services Hard Drawn Copper Contact Wire
Learn More

Southwire provides Mosdorfer spring tensioners.


Southwire, partnered with Mosdorfer, is your preferred provider of the Tensorex C+ Spring Tensioners for auto-tensioned OCS systems of North America.  Please contact Southwire for technical support and product selection requirements.


























We offer an extensive catalog of K+M OCS hardware.


Southwire has partnered with K+M to supply over 400 widely-used, specialty components including superior quality KUSEC, KULOOP products, trusted for years by the transit industry.

We are a North American supplier of K+M’s innovative KUPRO de-icing system for the prevention of ice build-up on OCS systems.

View Catalogs

Featured Videos

2005-SW-Services-Page-Sub-Image2(1).jpg

Southwire CableTechSupport Services

Southwire’s CableTechSupport™ Services team, comprised of engineers with expertise in power, electrical, mechanical, civil, chemical, polymer science, industrial, and nuclear engineering, has the depth of skill and the ability to respond with innovative solutions for your most complex and mission-critical wire and cable challenges. 

Learn More