E-T-A has hundreds of thousands of different circuit breaker configurations to choose from, complemented by accessories, terminal blocks and power distribution rails, which together represent one of the widest selections of products of their type available. The bespoke service offering extends from the design and manufacture of bus bars, switch panels and other accessory items to complete pre-wired distribution sub-racks and power control systems. Pro-E? software enables E-T-A designers to create 3-D computer models for the demonstration of their ideas and to respond rapidly to enquiries.
Products such as the E-T-A ESS20 electronic circuit breaker and the ESX10 electronic circuit protector can be mounted in groups in the recently introduced rack-mountable SVS09 power distribution system, for example, providing protection at the device level in automated process control, production plants and power plants. The ESS20 and ESX10 can also be specified for customised 19” racks and other power distribution modules. Their selective disconnection of 24V DC switch-mode power supply (SMPS) loads can lead to greatly reduced plant downtime.
A variety of mounting configurations is available to help provide the best solution for individual applications. Some models are pluggable, utilising E-T-A mounting sockets, offering versatility and convenience – particularly during service and maintenance – while track-mountable products are available for installation in control cabinets. As a further option, securely fixed panel mounted circuit breakers will enhance overall system robustness.
Crucial to a properly designed and reliable power distribution system is the correct selection of circuit protection, including current ratings and trip characteristics, to ensure that neither the cables nor the load itself are damaged by overload or short circuit. It is also of paramount importance to avoid any adverse effects on the power supply or loads adjacent to a faulty circuit. E-T-A electro-mechanical and electronic circuit breakers and protectors are ideally suited to this purpose.
Many E-T-A circuit breaker models offer optional auxiliary contacts which facilitate remote diagnostics and monitoring. Pushbutton, toggle and rocker actuators are available to suit a wide range of different needs, as well as actuator guards to prevent inadvertent operation. The selection criteria to determine the most suitable circuit breaker type for a particular application include general design requirements, current rating, number of output circuits and space available, termination, and cable size to be protected, as well as mechanical parameters such as mounting method preferred and marking.
Many internationally renowned companies depend on the reliability and quality of E-T-A products, as well as E-T-A’s long-standing experience in the design and development of power distribution systems for almost every application. All applications of E-T-A products are characterised by an uncompromising demand for safety, performance and reliability, relying on unrivalled knowledge and expertise, gained through 60 years of manufacture of thermal, thermal-magnetic, magnetic and high-performance CBEs and an associated range of control devices.
www.e-t-a.co.uk offers further information on E-T-A and its products.
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