Meba mcb current rating MB51 type  can protect and control of circuit against overload and short circuit, in building installation-such as houses, offices, commercial complex, motor system(D curve) and industrial installation-for switching, control, protection and regulation of electrical circuits. Also in switch-gear panels, railway and marine application.Applicable to terminal and pin/fork type busbar connection,Protection against both overload and short circuit High short-circuit capacity

Meba mcb current rating MB51 type

Technical parameters

Tropicalization Relative Humidity 93% RH at 25℃
Room Temperature 10℃ a 60℃
Electrical Properties Rated at 40℃ A 6/10/16/20/25/32/40/50/63
Rated operating voltage at 40℃ Vac 240/415
Nominal Frequency Hz 50/60
Interrupting Capacity at 230V kA 6
Operating temperature 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 10000
Operation curve B/C/D
Current Trip Curve A 5 a 10 In
Characteristic Intervention attach
Type Of Assembly FOR RIEL DIN 35 mm
Features 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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