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Bury, Lancashire, United Kingdom, 2006/11/30 - Specifying circuit breakers for equipment (CBEs) is a daunting task, but help is at hand from electrical component distributor Rowe Hankins Components.
Within the UK they are the only company with direct access to thermal, thermal-magnetic and hydraulic-magnetic circuit breaker technologies. Their current catalogue provides a clear concise guide on how CBEs work and how they can help in the prevention of electrical accidents. The catalogue is free on request.
Rowe Hankins CBEs operate on thermal or thermal-magnetic principles. They are suitable for domestic and industrial equipment, from floor polishers to floodlights and from pressure washers to heavy duty pumps. Toggle, rocker and push button CBEs are available in ratings from 0.05Amps to 20.0Amps. Fittings, legends, terminals and accessories can be customised to client needs. Units may be specified with or without thermal overload protection (switch only) and with under voltage releases and other safety and interlock devices for accident prevention.
Thermally operated CBEs are especially tolerant of high in-rush currents and other intermittent and transient energy spikes. This gives assured performance when linked to motors, switched power supplies, tungsten filament lighting and other devices that have high start up energy requirements. They are also tolerant of wide variations in frequency while their simple and robust design makes them competitive with other devices. Reliable stop/start, effective protection and nuisance free operation are key features for users.
Thermal-magnetic CBEs offer two modes of protection. The thermal device, a bimetal strip, gives overload protection while an electro-magnetic device gives short-circuit protection. These breakers can normally protect currents from 100 to 300 Amps, without sustaining damage or the need for back up.
Efficient and reliable operation depends on the quality of the CBE mechanism. Interference from noise, for example, is often attributed to bouncing of contacts on closure – common with spring loaded devices. Rowe Hankins RT line CBEs use a latch type closure to give positive contact pressure eliminating bounce and reducing the possibility of contact welding.
CBEs are a small but crucial component in many appliances and OEM equipment. Rowe Hankins can offer comprehensive catalogues, expert telephone assistance, on-site consultation and continuing technical back up. As a manufacturing distributor the company can also offer services for pre-assembly and sub-system manufacture to enhance a clients own production or service operations.
To reserve a free CBE catalogue, OEMs and equipment designers can contact the company or email.