VE Transfer Switch 5KVA, 1ph, 200-250Vac

The Victron Energy VE Transfer Switch 5 kVA, 1‑ph, 200‑250 Vac (Model: COS230502100) is a reliable automatic AC transfer switch designed for single-phase systems operating at 200-250 Vac. It features two AC inputs and one output, enabling automatic switching between sources such as a generator, inverter or shore power supply.

Built to IB trade-specs, the unit is rated at 5 kVA for single-phase use, making it well-suited for commercial vehicle power systems, marine applications and small industrial installations.

This model is housed in a robust enclosure meeting IP54 protection rating for wall-mount installations in demanding environments. With nominal input voltage of 200-250 Vac and frequency support for 50-60 Hz systems, integration into UK and European installations is straightforward.

Installation is simplified thanks to its compact dimensions of 175 × 215 × 120 mm and lightweight construction at approximately 1.85 kg. During best-practice wiring, the switch monitors the priority input (input 1) and will transfer to the alternate source (input 2) when voltage or frequency falls outside accepted limits. When the primary source stabilises the unit reverts after a short delay (≈10 s).

In a trade environment, this means you can specify a system where a shore power feed, generator or inverter is automatically selected without manual reconnection. That ensures continuity of AC supply with minimal intervention, especially valuable in installations such as mobile worksites, marine craft or remote installations needing a dependable secondary AC source.

VE Transfer Switch 5KVA, 1ph, 200-250Vac – Manual