Switchgear, Enclosures & Distribution

Switchgear and distribution equipment receive power from the transformer and divide it safely to motors, panels and buildings. Seven Star LLC, an independent supplier in Muscat, supplies switchboards, enclosures, busbar systems, terminal blocks, transformers and protection devices from Schneider Electric, Siemens, Rittal, Bender, CHINT, ABB and Weidmüller to panel builders, contractors and plants in Oman and the GCC.

Types of equipment in this category

Low-voltage switchboards such as the Schneider Electric Okken and Prisma iPM and the Siemens SIVACON S8 form main and sub-distribution boards. Enclosure systems like the Rittal TS 8, Schneider Electric Spacial SF and Kaedra house control gear outdoors and indoors. Busbar distribution blocks, Canalis busway trunking and cable ducting distribute current inside panels and across buildings, and terminal blocks from Weidmüller and Schneider Electric make the field connections. Cast resin and dry-type transformers, automatic transfer switches for mains and generator supply, surge protective devices, the ABB REF615 feeder protection relay and Bender ISOMETER insulation monitors for unearthed (IT) systems complete the range.

How to select distribution equipment

Start from the single-line diagram: rated voltage and current, short-circuit rating, form of separation and IP rating. For enclosures, check size, material, IP and IK ratings and cooling for hot climates; in the GCC heat often drives the enclosure choice. Transfer switches are sized by current and number of poles, and surge devices by type (class) and system earthing. Insulation monitors must suit the system voltage and leakage capacitance.

Data needed for a quotation

Send the part number or the single-line diagram and specification, with ratings, IP class and quantities.