Rittal Offers Switch Disconnector Fuse Sections

Rittal, a manufacturer of enclosure and cabinet systems, has introduced switch disconnector fuse sections that are constructed based on the company's Ri4Power components. In the highest design version, an internal separation to installation Form 4b is achieved with complete side-panel modules and bar covers. Depending on the number of cables to be connected, the new Rittal fused isolator sections can be provided in widths of 1,000mm and 1,200mm and offer connection spaces of approximately 300mm or 500mm in width.

Using switch disconnector fuse sections, the distribution of electrical energy through fused switchgear can be achieved in a compact and varied way. Size 00 and Size 3 fuse switch disconnectors from Jean Muller or ABB/Siemens can now be prepared in full with Rittal's new Ri4Power switch disconnector fuse sections. With the Jean Muller device modules, replaceable control units can be integrated in the fused isolator section, even when live. In order to design switchgear as economical as possible for multi-terminal busbar systems, Rittal favours flat bar systems with 50 x 10mm, 60 x 10mm, 80 x 10mm and 100 x 10mm cross sections.

In the case of the successfully conducted type tests, both with the ABB Slimline and Jean Muller Sasil rails, a rated current of up to 2,100A was demonstrated in the distributor bar system, with full section configuration and an IP 3X level of protection. A short-circuit resistance of 100kA (Icw 1sec) was demonstrated during the type testing conducted on the new fused isolator sections, both in main busbar systems as well as in 100 x 10mm distributor bar systems.

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