Molded-case circuit breaker for DC
AssigneeLsis Co., Ltd.
InventorKihwan Oh
Life of this patent
Estimating the term…
Abstract
The present invention relates to a molded-case circuit breaker for direct current (DC), and more particularly, to a molded-case circuit breaker for DC that contains an internal connecting conductor connecting adjacent terminals to improve insulation performance and assemblability and reduce occupied space. There is provided a molded-case circuit breaker for DC that contains a plurality of interruption units within an outer casing, the DC circuit breaker including a two-unit connecting heater that connects fixed contacts of adjacent interruption units, the two-unit connecting heater being placed within the outer casing.
Claims11
A molded-case circuit breaker for DC that contains a plurality of interruption units within an outer casing, the DC circuit breaker comprising a two-unit connecting heater that connects fixed contacts of adjacent interruption units, the two-unit connecting heater being placed within the outer casing,
- wherein the adjacent interruption units are connected to each other as a series circuit,
- wherein the two-unit connecting heater is formed in a U-shape, and comprises:
- a pair of head portions respectively connected to the fixed contacts of the adjacent interruption units;
- a pair of body portions extending downward from the head portions;
- and
- a leg portion connecting the pair of body portions, and
- wherein one of the pair of body portions has a tripping mechanism that detects an over-current in a circuit and interrupts the circuit,
- wherein a trip portion case for receiving the two-unit connecting heater and the tripping mechanism is placed within the outer casing, and
- wherein the trip portion case has a partition for insulation between the interruption units, and a cut groove is formed on a part of the partition to insert the leg portion.
Dependencies are inferred from the claim text.