A short-circuit testing device for miniature circuit breakers

Abstract

The application relates to a short-circuit testing device for miniature circuit breakers, comprising a carrier for carrying a plurality of circuit breakers in a first linear direction; a first contact module and a second contact module, which are respectively arranged on the two sides of the carrier and contact the circuit breakers carried on the carrier; wherein the first contact module comprises a base and sliding seats, the sliding seats are slidingly connected to the base and are distributed on the base in the first linear direction, the sliding seats are provided with first contacts capable of contacting the circuit breakers, elastic blocks are connected between the sliding seats and the base, and retractable limiting blocks are arranged on the base and cooperate with the sliding seats to limit the relative positions of the sliding seats and the base. When a single circuit breaker fails, the single circuit breaker is disconnected from the first contact module, thereby protecting the safety of the power supply.

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