FIELD: electricity.
SUBSTANCE: protective cutout device (1) has two separate shut-down circuits. The first circuit is made independent on supply-line voltage while the second circuit is dependent on supply-line voltage. During functional check of one circuit the other shut-down circuit controls the protected electric mains against leak current.
EFFECT: developing compact-size protective cut-out device that ensures functionality check without interruption of the connected electric mains.
15 cl, 3 dwg
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