Cembre not only provides solutions that directly give a product added value, but also ensures they meet the demands of the electric energy sector which relate to those structures that, even if they do not produce a direct added value, create the surrounding conditions necessary for ensuring the regular functioning of technological industrial systems, and an adequate operability of the employees. The products directed at plant electrical services, allowing the construction of the primary and secondary control panel through to distribution to the end user. The products used in this area also include the indirect clamping terminal box of the Zeta series, particularly indicated for the distribution phase/earth in electrical industrial plants.