Circuit breakers. Switch-operated mini circuit breakers in a consumer unit. These protective devices cut the electricity supply to a domestic device w

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Circuit breakers. Switch-operated mini circuit breakers in a consumer unit. These protective devices cut the electricity supply to a domestic device when a fault develops. This device is from 1975.

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Size: 3510px × 1807px
Photo credit: © SHEILA TERRY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 18th, acting, boulton, centrifugal, century, double, early, engine, engines, gauge, governor, history, horsepower, industrial, innovations, james, matthew, newcomen, pressure, revolution, science, steam, technical, technology, watt