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)
