Basic parameters, working principle and purpose：
DBB-56 and extension button DBB-5L-35L. The basic parameters of the pull-out free release single-phase new circuit breaker are as shown in Table 1. The product works on the principle of dual metal thermocouple thermal release and is used for overload or short circuit protection in aircraft AC/DC distribution systems.

Environmental adaptability:

Surrounding medium temperature: (-55 to 6i0) c

Sinusoidal vibration: frequency range (10~200) Hz, acceleration 4.5 go, acceleration 8 g.

Impact: speed of 40-100 times/min, acceleration of 4g, a total of 10 "times.

Basic parameters:

Extreme action current:

Maximum holding current of the product at 60 ℃

——DBB-5-15 is the rated current; DBB-20-35 has a rated current of 85%.

Minimum tripping current of the product at 60 ℃

——DBB-10 and 15 have a rated current of 150%; DBB-5, 20, 25, and 35 have a rated current of 160%.

-The minimum tripping current at 55 ℃ is 220% of the rated current.

(External installation dimensions)