Meba mcb types MB53
Meba mcb types MB53
Meba mcb types MB53 major export to South America, Middle East market, has light weight, small size, novel structure and excellent performance. They are mounted in the metal distribution board and used in guesthouses. block of fiats, high buildings, squares, airports, railway stations, plants and enterprises etc, in AC circuits 240V(single pole)up to 415V(3poie)50Hz for protection of overload short circuit and for circuit changeover in lighting system. Breaking capacity is 3KA. The items comply with BS&NEMA STANDARD.
|ropicalization||Relative Humidity||℃||93% RH at 25℃|
|Room Temperature||℃||10℃ a 60℃|
|Electrical Properties||Rated at 40℃||A||6/10/15/20/30/40/50/63|
|Rated operating voltage at 40℃||Vac||120/240/415|
|Interrupting Capacity at 230V||kA||3|
|Operating temperature||℃||-5℃ a +40℃|
|Degree of Protection||IP20|
|Number of poles||1,2,3,4|
|Conductor cross section (minimum allowable)||mm2||25|
|Minimum number of power moves||4000|
|Minimum number of mechanical operations||6000|
|Current Trip Curve||A||Type B 3a 5 In
Type C 5 a 10 In
Type D 10 a 14 In
|Type Of Assembly||NEMA Type|
|Features||MAGNETIC COIL: ensures the switching of short-circuit, speaking within the following ranges: 5 to 10 times rated current (Type C), 10 to 14 times rated current ( Type D )|
|BIMETAL: ensures the breaker trip when overloaded.|
|ARC CHAMBER: effectively dissipates the electric arc that is generated by the opening contacts of the trigger mechanism in the presence of an overload or short circuit.|
MAGNETIC COIL: ensures the switching of short-circuit, speaking within the following ranges: 5 to 10 times rated current (Type C), 3 to 5 times rated current ( Type B ), 10 to 20 times rated current ( Type D )
BIMETAL: ensures the breaker trip when overloaded.
ARC CHAMBER: effectively dissipates the electric arc that is generated by the opening contacts of the trigger mechanism in the presence of an overload or short circuit.
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