84C Capped Aluminum Power Delivery (CAPD) Rail 6000A
Non-Insulated Transit Welded Cap Rails


The Conductix-Wampfler 84C Stainless Steel Capped Aluminum Power Delivery (CAPD) Rail is mechanically equivalent and electrically superior to the legacy composite rail currently in use in North America’s Transit Authorities. Aluminum power rail is the most advanced rail you can buy, providing the best available electrical performance per pound.

84C CAPD Rail for healthier substations, healthier trains, decreased headways, and happier maintenance crews.
Key Features and Benefits
- High Current Capacity & Ultra-Low Electrical Resistance – Tired substations may find a little more life with better conductors. New, power-hungry trains are more demanding of the electrical grid and need a conductor that can rise to the occasion. Demand for additional capacity during peak service hours requires a conductor that can support decreasing headways.
- Significantly Lighter – 84C rail is named for its weight: 84lbs. per yard. The 84C CAPD rail weighs around 55lbs. per yard. At 2/3 the weight of 84C, you’ll have happier installation teams, less heavy equipment needed, and more rails per shipment (reducing carbon emissions and shipping costs).
- Buy America Compliant – Stainless-Steel CAPD Rail is produced in Harlan, Iowa.
- Drop-in Replacement – Designed with the same overall dimensions and key interface points as the legacy 84C, so that existing insulators and other system parts can be reused (sustainable implementation).
- Premium Materials
- Durable, Corrosion Resistant Stainless-Steel cap to ensure long-life and reliability under all environmental conditions.
- Electrical Grade Aluminum for exceptional conductivity and optimal mechanical strength and stiffness.
- Configurable Design – Requirements vary by system; our designs can be modified to fit your needs.
- Precision Manufacturing = Quality Result – Use of a C-shaped cap welded to tabs along the side of the aluminum ensures a smooth running surface. As the weld cools, it produces a durable mechanical bond between the aluminum and stainless-steel, ensuring minimal electrical resistance between the conductor and cap.
- Specification
- High Quality Manufacturing
- Rigorously Tested
- 3rd Rail System Setup
- FAQ
Specification
| Parameter | Value | Unit |
| Resistance | 1.32 (4.33) | µΩ/ft (µΩ/m) |
| Height | 4.07 (103.4) | in (mm) |
| Head Width | 4.15 (105.5) | in (mm) |
| Foot Width | 4.88 (124) | in (mm) |
| Foot Height | 0.69 (17.5) | in (mm) |
| Foot angle | 13 | degrees |
| Length | ≤ 40 (12.2) | ft (m) |
| Cross-Section | 12.7 (8174) | in2(mm2) |
| Linear Weight | 18.32 (27.26) | lb/ft (kg/m) |
High Quality Manufacturing
Manufactured to High Quality Standards

Our automated production line for welded cap transit rails is designed to deliver consistently high quality with tight tolerances. Precisely controlled and fully reproducible manufacturing processes ensure that every conductor rail meets defined specifications and performance requirements.
Process variability, errors, and scrap are significantly reduced by minimizing manual interventions. Integrated inline inspection systems and sensor-based monitoring continuously verify critical quality parameters throughout production.
Your benefit: You receive reliable welded cap rail systems with consistent electrical and mechanical performance, supporting long service life and dependable operation in demanding environments.
Rigorously Tested
Verified through Agency Specific Tests

Our CAPD Third Rail product is designed and tested to meet agency-specific requirements. Conductix-Wampfler performs rigorous in-house tests and can also provide rail to independent, third-party testing labs. So, whether you need simple tests like salt-spray, heat rise, resistance, or cap peel; or more complex tests like short-circuit testing, Conductix-Wampfler has the experience and knowledge to get it done.
3rd Rail System Setup
A proven setup for demanding transit projects
A well-designed third rail system ensures a reliable and uninterrupted power supply under the heaviest train operations. Optimized system design and robust components increase system availability, minimize downtime, and support efficient train operations.

With durable materials and proven engineering, maintenance requirements are kept low, while the system delivers a long service life in demanding transit environments, including tunnels, elevated sections, and outdoor installations.










