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BS EN 60947-4-3. Low-voltage switchgear and controlgear. Part 4-3. Contactors and motor-starters. Semiconductor controllers and semiconductor contactors for non-motor loads|Electrical testing, Controllers, Contactors, Electrical equipment, Alternating current, Instructions for use, Low-voltage equipment, Electric starters, Performance, Electric control equipment, Switchgear, Circuits, Electric motors, Electrical protection equipment, Semiconductor devices, Rated voltage, Low voltage

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