top of page

Media


API Capacitors will be exhibiting at Advanced Engineering 2026 at the NEC on 4 - 5 November!
If capacitors are part of your application, we’d love to meet you. Pop over to our stand and have a chat with our team. For whom that have not met us before, API Capacitors is a highly respected UK-based capacitor designer and manufacturer, supplying trusted capacitor solutions to customers across the globe. From catalogue products to fully customised solutions, we support a wide range of applications, including sourcing solutions for obsolete and hard-to-find capacitor r
1 min read


Are your capacitors compliant, safe and reliable?
In high-voltage electrical systems, capacitor reliability is not simply a matter of performance, it is a fundamental requirement for safety, compliance and asset protection. A capacitor operating under electrical stress must be capable of performing consistently within its specified parameters, while withstanding the conditions for which it was designed. At API Capacitors, we have dedicated facilities for high-voltage testing, providing a critical level of assurance that our
3 min read


Powering the Future of Rail
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
1 min read


Capacitor Applications Supported by API
Inside every Variable Frequency Drive (VFD), capacitors perform functions that directly affect performance and reliability, and we design and manufacture capacitors for each of the roles below. The largest and most visible are the DC bus capacitors, which smooth the rectified DC voltage. Acting as both energy storage and voltage stabilisers, they give the inverter a clean DC supply to produce precise, stable AC power for the motor. On the input side, filter capacitors help th
1 min read


Marine Propulsion
API Capacitors have supplied capacitors for demanding marine applications since the 1980s. Our products are fitted on merchant ship propulsion systems and naval vessels operating around the world, for customers in both the private and public sectors. Our capacitors form an essential part of the main propulsion systems for HMS Queen Elizabeth and HMS Prince of Wales, the UK's latest generation of aircraft carriers. They are also fitted on the British-built Type 45 destroyers,
1 min read
bottom of page