factory low price Miniature circuit breaker-FTB2G for Malaysia Factory


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Tripping characteristic

Exterior and dimensions

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Model: FTB2G
Pole: 1P,2P,3P,4P
Rated frequency: 50HZ
Rated voltage (V): 230/400
Rated current (A)C,D 6,10,16,20,25,32,40,50,63
Breaking Capacity: 6KA
Mechanical and electrical life: 20000
Ambient temperature (°C): -5 ~ +40
Altitude (m): ≤2000m
Relative air humidity: no more than 95%
Pollution degree: 2
Installation: Used in place without obvious shock and vibration
Pollution Degree: II
Connecting wire(mm²)Min/Max 1/25
Size(L×W×H) 1P 74.2×17.8×80
2P 75.7×35.6×80
3P 75.7×53.4×80
4P 75.7×71.2×80

Found the unit shorted to ground, after testing the short was found to be in the star contactor, it either stuck in mechanically or maybe something in the control circuit went wrong.

They had a redundant unit on site so rather than spend money on a new set of contactors and then finding the compressor was faulty I swapped the used components over to see what happened.

Learn how to make a simple, but super sensitive AC voltage detector which performs as good as many high priced sensors/detectors! A minimal amount of components are required for this circuit. The full schematic, as well as a few demonstrations are shown in this video.

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