Powering the Future of Rail
Updated: Sep 10
API Capacitors have supplied capacitors for railway and traction systems since the 1980s. Our products are integral to electric and diesel-electric locomotives, multiple units, metro systems and tramways across the globe, and are designed to meet the demands of modern traction systems, including both GTO (Gate Turn-Off Thyristor) and IGBT (Insulated Gate Bipolar Transistor) based designs.
Our range includes snubber capacitors, which protect against voltage spikes; AC harmonic filters, which reduce electrical noise; and DC link capacitors, which provide energy storage in power conversion systems. All are available in a range of case styles and materials, with bus bar or conventional terminations to suit different design requirements and standards.
We source high-grade materials from leading specialists, so our capacitors perform reliably and meet European and applicable rail standards, backed by our ISO 9001 framework and other accreditations. Our capacitors are designed to withstand the high humidity and ambient temperatures found in rail environments, with oil-free designs that are UV resistant, halogen-free, and use flame-retardant, low-smoke materials.
Alongside our standard offering, we provide custom-designed solutions to address obsolescence and mid-life refurbishment. Whether for a new-build traction project or a bespoke requirement, API Capacitors are a single source for rail traction capacitor needs.
