Smiths Connectors is now Smiths Interconnect


MarketID in (9)
  • High density modular solution
  • High power, up to 300A
  • Straight and right angle termination styles
  • Reliable Hyperboloid and High Power Contact technologies
  • Cable section size from 25mm² to 50mm²


The HeavyPower Series is part of the Transformer range, a comprehensive series of high density, modular connectors for all on-board power applications within the rail market.

The Transformer’s modularity enables customers to design their own solution by supplying the elementary components of the whole connector. It employs a unique do-it-yourself system based on the building block principle. The connector is suitable for any applications requiring the transmission of very high currents such as power distribution, intercoaches and bogies.


The HeavyPower Series is available in 1 to 4 pole versions, supporting up to 300A per pole and a voltage rating of 3600V. The HeavyPower connector is offered with straight termination, that allows for the easy mounting on the roof or under the car’s floor or with right angle termination to facilitate the mounting between two cars. As a variant, the HeavyPower Y Series is also proposed as a branch connector acting as a junction box.

The connector uses the Smiths Connectors’ High Power Contact (HPC) technology in aluminum or in copper that allows for more contact points to reduce overheating and to achieve low mating force during the connection.

In addition, one contact size fits with the cross section cables from 25mm² to 50mm², with consequent reduction of supply chain and cabling costs.


The HeavyPower Series range is compliant with the main railway standards: NF F 61-030, EN 50647 and EN 60373. The connectors also conform to EN 45545 fire and smoke standards and are made of plastic materials following NF F 16-101/102.


Number of Poles 1 to 4
Contact Pin Diameter Ø10
Current Rating Up to 300A
Voltage Rating  3600V
Withstanding Voltage Rating 12KV
Temperature Rating -55°C to 125°C
Contact Material Copper or aluminum
Contact Retention According to 11.5.5 NF F 61 030
Connector Material Plastic and aluminum
Endurance 500 mating cycles
Dry Heat According to 11.6.2 NF F 61 030
All specifications are subject to change without notice