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As electrical infrastructure projects grow in scale and complexity, switchboard builders are being asked to deliver more switchboards within tighter project timelines, with complete design-verification documentation. Much of this pressure comes from the need to coordinate four key elements: the switchgear brand, enclosure system, busbar system and internal separation concept. When these elements are specified separately, additional time is often required to ensure compatibility and resolve integration issues during assembly.
Rittal VX25 Ri4Power simplifies this process by providing a tested system compatible with major switchgear brands, including ABB, Schneider Electric, Siemens, Terasaki and Eaton. This integrated approach helps streamline planning, reduce assembly complexity and support the design-verification process.
Supported by national distributor APS Industrial, Rittal offers VX25 Ri4Power, a modular low-voltage switchgear and power distribution system built on the VX25 enclosure platform. Designed for applications up to 6300 A, it combines the VX25 Ri4Power enclosure system and the tested switchgear system into a complete solution for assembling type-tested low-voltage switchboards. The system is fully type-tested to IEC 61439-1, offers protection categories up to IP 54 and provides tested accidental arcing protection to IEC 61641.
Modular Section System
The modular section system is what gives builders their flexibility. Sections can be compiled to suit the job, including ACB sections for the infeed and output of large currents, outgoing sections that bring switchgear, fused outgoing feeders and control units together under one roof, coupling sections for connecting or disconnecting busbar systems, and fuse-switch disconnector sections with integral cable chambers for compact distribution. The main busbar systems can be configured for a short-circuit rating of up to 100 kA for one second, and cable entry is available from above, below, or both.
Form separation is handled within the same tested system. The continuous modular design allows each enclosure tier to be subdivided into individually configurable busbar compartments, functional units and cable connection areas to achieve Form 1 to Form 4b.
Assembly efficiency runs through the detail. The system delivers time savings of more than 50%, supported by design decisions that remove components and steps. Compartment side panels matching the enclosure height shield all functional spaces at once, replacing individual vertical partitions from section to section. The 25 mm enclosure section pitch pattern allows height-flexible assembly of horizontal compartment dividers, which slide into position like a baking tray in an oven. Pre-punched knock-outs in the dividers are removed burr-free for flexible cable routing, and the main busbar is built from multiples of 50 x 10 mm copper bars, making it easy to handle. The optimised arrangement of single supports allows the panel to be assembled quickly.
