Basic parameters, working principle and purpose

DBF-1~25 pull-out free tripping single-phase circuit breaker products work on the principle of bimetallic electric thermal tripping and have temperature compensation structure, which can be used in a wide temperature range. Circuit breakers are used for overload or short circuit protection in aircraft AC/DC distribution systems.

Basic parameters:

Environmental adaptability

Surrounding medium temperature: (-55~85) ℃.

Sinusoidal vibration: frequency range (10-500) Hz, acceleration 10g

Acceleration: 10g

Impact: 50g.

Electrical performance

Extreme action current:

At 25 ℃, the maximum holding current of the product is 115% of the rated current, and the minimum tripping current is 150% of the rated current

At 85 ℃, the maximum holding current of the product is 100% of the rated current, and the minimum tripping current is 150% of the rated current

-At 55 ℃, the maximum holding current of the product is 115% of the rated current, and the minimum tripping current is 160% of the rated current.

life:

Resistive load 5000 times;

Inductive load 2500 times, COS φ=0.6~0.7

Mechanical cycle 5000 times.

Breaking ability:

DC 6000 A, AC (2000~3500)