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Electric substation circuit breaker protects equipment involved in the generation and distribution of high voltage electric power. Often used in industrial settings and/or electrical substations where industrial uses require the protection of industrial electrical equipment. Imagine your layout with a flatcar load of these super accurately designed scale model circuit breakers headed for your industrial power plant or electrical substation model. Flat car / US penny coin shown for size comparison and are not included. Scale model is for display and operating model railroad load / modelling and is not a child's toy. For use by railroad modelers age 14 years minimum.