Miniature Circuit Breaker Application:
AL21 miniature circuit breaker is mainly suitable for overload and shortcircuit protection, it is especially used for illumination and distribution inindustry and commerce. It is of pleasing outlook&highbreaking capacity etc. It’s frame and parts adoptsplastics of light weight, reliable performance, high inflammable resistance andshock resistance for long service life. It is mainly used for overload andshort circuit protection within the circuit of AC 50/60Hz, rated voltage ofsingle pole up to 240V, two, three or four pole up to 415V. It can alsobe used for an unfrequentswitchover of the circuit and illumination under normal conditons.
ElectricalCharacteristics of Miniature Circuit Breaker:
Current rating | 1,2,4,6,10,16,20,25,32,40,50,63Amp | ||
Tripping curve B:3-51n C:5-1O1n D: 10-201n | B:3-51n | C: 5-101n | D: 10-201n |
Breaking capacity EN 60 898 & IEC898 IEC 947-2 NEMAAB-1 | 4.5KA 6KA 10KA/C | 6KA 10KA 22KA/C | 6KA 10KA 22KA/C |
Rated voltage-50/60Hz | 230/400V | ||
Isolating voltage | 500V | ||
Electrical Life | 0.5 to 32A 20,000 times 40 to 63 A 10,000 times |
Dimensions of Miniature Circuit Breaker:
Characteristic Curve (BS / IEC) of Miniature Circuit Breaker:
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