Rail Jumper

A Rail Jumper is a critical electrical component in railway infrastructure, used to maintain electrical continuity between rails across rail joints, insulated rail joints (IRJs), turnouts, and crossovers. These jumpers are essential in electrified railway systems, enabling reliable return current paths and ensuring the integrity of track circuits for safe train detection and signaling.

Constructed using high-conductivity materials such as multi-stranded copper or aluminum, rail jumpers are designed to withstand mechanical vibration, thermal expansion, and high electrical loads. They are available in bare or insulated variants, depending on environmental and operational requirements.

Key Features:

• Conductor Type: Multi-stranded copper or aluminum wire

• Configuration: With pre-fitted lugs, eyelets, or compression terminals

• Sizes Available: Commonly from 25 sq.mm to 120 sq.mm, customizable

• Insulation (optional): Weather-resistant PVC, XLPE, or silicone for insulated types

• Length: Custom cut based on field requirements

• Installation: Typically welded or bolted to the web of the rail using bond connectors

Applications in Railway Sector:

• Traction return current continuity in OHE electrified sections

• Ensuring proper functioning of track circuits and axle counters in signaling

• Used at glued joints, expansion joints, and crossings

• Applicable in mainline railways, metro systems, and high-speed corridors

Advantages:

• Ensures low-resistance current path across rail discontinuities

• Maintains signaling integrity and traction safety

• Highly flexible and vibration-resistant for long service life

• Simple to install and maintain

Compliance:

• Conforms to RDSO specifications such as IRS:S-21 and IRS:S-40

• Suitable for use in AC and DC traction systems

• Approved for use across Indian Railways, Metro Rail, and Dedicated Freight Corridors