FIELD: electrical engineering; circuit-opening devices. SUBSTANCE: electronic release is designed for circuit breaker incorporating at least one current sensor feeding current to first power circuit. Distribution bus connected to output of first power circuit distributes voltage controlled by first amplitude-limitation regulator among electronic circuits of release. The latter has second power circuit connected to external power source and second amplitude-limitation regulator inserted between second power circuit and distribution bus. Second amplitude-limitation regulator operates in step with first one. EFFECT: reduced mass and size. 14 cl, 8 dwg
