Enclosures, Racks, Cabinets & Panel Products


Modular system for low-voltage switchgear

19 September 2007 Enclosures, Racks, Cabinets & Panel Products

Ri4Power from Rittal is an integral system solution for the production of type-tested low-voltage switchgear.

The modular system solution Ri4Power Form 2-4 is said to open up new dimensions for fast and straightforward installation of low-voltage switchgear, while at the same time ensuring safe and reliable operation of switchgear for machinery, systems and building services. The Ri4Power series includes all system solutions for low-voltage systems and distribution enclosures and a common planning software solution.

As an alternative to the form-separated Ri4Power Form 2-4 system, Rittal also offers Ri4Power Form 1 as high-current, low-voltage distribution systems and the Ri4Power ISV modular distribution enclosure system.

The protection of persons and equipment is addressed by the modular form separation concept of the Rittal TS 8 enclosures. This applies in particular when semi-skilled staff are operating the system or when the entire switchgear installation cannot be disconnected for maintenance work and repairs. Additional safety aspects are met with the RiLine60 busbar systems that can be designed for all-round encapsulation. According to Rittal, 90% of all accidental arcing is caused by working on live systems. The all-round encapsulation significantly reduces this hazard potential. In addition, the busbar supports and base-point-free design inhibits accidental arcs, allowing them to be dissipated quickly. The plastic parts in the busbar system are made of UL-listed material (UL94-V0), which means they are self-extinguishing.

Ri4Power Form 2-4 separates logically individual areas physically. For example, there is a separate connection space for the incoming cable, a compartment for the power circuit breaker and a space for the busbar system. As a result of this, staff can work in the connection space without running the risk of touching the terminals of the power circuit breaker, which has safely disconnected the connection cables.

Type-tested system technology ensures safety

Ri4Power Form 2-4 has been type-tested to IEC 60439-1 using the most common switchgear - for example, devices from ABB, Moeller, Schneider Electric and Siemens. The checks included temperature-rise tests with a range of housing protection classes and short-circuit resistance tests with a range of busbar support distances.

The height of the individual compartments can be adjusted incrementally, starting at a height of just 150 mm. Ri4Power housings are split up into different sections using functional dividers and side panels. Instead of one door at the front, a number of doors can be installed and different locks can be used to assign separate authorisations. Rittal has secured the high protection class IP54 for Ri4Power Form 2-4.

One-man assembly thanks to superior modular technology

Ri4Power Form 2-4 boasts a range of assembly aids and a high level of component functionality to provide ease of assembly. All parts required for internal installation can be assembled by just one person. Bars, sub-dividers and side panels are inserted in the TS 8 frame and secured with a few screws without the fitter having to hold the parts in place. Symbols are used to indicate the correct installation position.

The graphical software Rittal Power Engineering can be used to plan and configure an entire low-voltage switchgear system. The software's project-specific description texts and CAD displays provide planners and architects with the support they need when designing a performance specification. Switchgear engineers who use the software to perform calculations and draw up quotations can simply transfer all the configured data via an interface to an Eplan P8 system for detailed project planning.



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