Circuit breaker with internal voltage measurement

摘要

The switch has a switch housing (1) and an electronic module (2), where a contact is provided to tap a voltage at a primary conductor (3). An adapter (4) is provided within the switch housing for reducing the measured voltage of the primary conductor, where the adapter is arranged outside of the electronic module. The adapter comprises a contact plate that is connected as the contact for performing voltage tap with the primary conductor. The contact plate is commonly fastenable with the primary conductor at the switch housing by an attaching unit (6).