Premium CVS-280 SERIES DC/DC Converter

The Premium CVS-280 is a compact 280 W DC/DC converter developed for rail and transportation environments where stable, galvanically isolated auxiliary power is required from high-voltage traction supplies. Designed to operate from 600 / 750 VDC catenary systems and compliant with EN50155:2017, EN50163 and EN50124-2, it delivers dependable performance in rolling stock, onboard control electronics and vehicle auxiliary systems.

With its fully isolated architecture providing 7 kVrms input-to-output separation, the CVS-280 supports high-voltage installation scenarios while maintaining safe, low-noise DC output. Available in 24 V, 48 V, 72 V and 110 V , the converter maintains tight voltage regulation within ±1 percent and supplies continuous 280 W output power, with short-duration peak capability up to 400 W for loads with transient demands. Natural convection cooling and wide -40 to 70 °C operating range allow integration into sealed cabinets or thermally constrained vehicle compartments without forced-air requirements.

The converter includes an ORing diode for redundancy applications, allowing parallel operation with external batteries or backup supplies. Input protection features—such as current limiting, reverse polarity protection and under-voltage lockout—ensure resilience in fluctuating traction environments, while overload and short-circuit behaviour is controlled through an internal current-limiting circuit. Status outputs and an isolated alarm relay provide clear voltage-health feedback to onboard monitoring systems.

Weighing only 1.75 kg and housed in a compact 65 × 162 × 230 mm enclosure, the CVS-280 is engineered for long-term reliability with a 20-year service life and MTBF of 200,000 hours at 40 °C. Compliance with EN61373 shock and vibration requirements confirms suitability for body-mounted railway equipment where mechanical endurance is essential.

Powerbox Australia supports the full CVS-280 range locally, providing engineering guidance, product selection support and access to stocked units for Australian rail operators, OEMs and integrators. The CVS-280 offers a reliable, rail-ready way to convert high-voltage catenary power into stable low-voltage DC for control, signalling and auxiliary systems across diverse rolling stock applications.