Miniatur-Schutzschalter

Details

Veröffentlichungs-Nr.

EP4749674

Anmeldetag

25. November 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

H01H71/12, H01H71/24

Abstract

A miniature circuit breaker (100) includes a tripping mechanism (10), a magnetic trip assembly (30), and an electronic trip unit (40). The tripping mechanism (10) includes a moving contact support (11), a moving contact (12), and first and second actuation input parts (131,132) which are adapted to drive the moving contact support (11) to move to drive the moving contact (12). The magnetic trip assembly (20) includes a coil (31) and an actuation part (32). When a main circuit current is greater than a first predetermined short-circuit current threshold, the actuation part (32) acts to apply an external force to the first actuation input part (131). The electronic trip unit (40) includes a current sensor (41), a controller (42), and an action actuator (43). The controller (42) is configured to control the action actuator (43) to apply the external force to the second actuation input part (132) in response to the main circuit current being greater than a predetermined overload current threshold and less than a second predetermined short-circuit current threshold.

Anmelder

Firma

SCHNEIDER ELECTRIC INDUSTRIES SAS

Land

🇫🇷 Frankreich