DC Miniature Circuit Breaker

DC Miniature Circuit Breaker

Features
1. DC Circuit Breaker consists of shell, operating mechanism, heatrelease, electromagnetic release, contact systems and arc quenching system etc.
2. Unique structure and a strong permanent magnet interrupter system productsare the short-circuit capacity of 10kA. Therefore breaking the crowd will nothave excessive wear contact, small current breaking will not emerge when thearcing time.
3. Elegant design, Easy installation, Mechanical Life >20000 times, 35 x 7.5Din rail installation.
4. Designed in the former handles the top end, reliable and comfortableoperation,
5. Wire must pay attention to " ,-"polarity
6. Consistent with the characteristics of power into the line
7. For 440V line three-pole circuit breaker to connect front loop fortwo poles in series.

Application
1. The DC miniature circuit breaker (hereinafter referred to as DC MCB),is applicable to rated current 63Aand below, DC rated voltage of 250V and 440V lines.
2. This kind of electrical switch is suitable for DC power distribution systemfacilities and electrical equipment overload, short circuit protection.
3. This vacuum circuit breaker is widely applied in electric power, posts andtelecommunications, transportation, mining and other industries.

NormalWorking/Installation Conditions
(1) Max. 40oC, Min. -5oC, 24-hour period the averagetemperature of not more than 35e.
(2) Elevation of the installation location does not exceed 2000m.
(3) Environment should not lead to an explosion of media, and no corrosion ofdamage will be insulated conductive harmful gases and dust.
(4) Installed at no significant swing, impact and vibration of the place. Pollution Level 2.
(5) 35 x 7.5 Standard rail installation.