One of Hottest for Miniature circuit breaker-FTB3LE to Albania Factories

Overview:



Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

Related video

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One of Hottest for Miniature circuit breaker-FTB3LE to Albania Factories, With superb service and quality, and an enterprise of foreign trade featuring validity and competitiveness, that will be trusted and welcomed by its clients and creates happiness to its employees.


Product illustration:

FTB3LE

Technical Data

Model FTB3LE Residual current circuit-breaker
Number of poles IP+N,2P,3P,3P+N,4P
Rated frequency: AC 50/60Hz
Rated voltage (V) AC 230/400
Rated current (A) CD 6, 10, 16, 20, 25, 32, 40, 50, 636,10,16,20,25,32,40

Rated residual operating current(mA)

AC A 3030,50

Rated residual non-operating current(mA)

ACA 1515,25
Residual current breaking time 30mA≦0.1s  250mA≦0.04s
Rated short-circuit breaking capacity (KA) 40~63A6~32A 1012
Rated residual current breaking capacity(KA) 4.5
Mechanical & electrical life: 20,000 operations
Installation  
Protection rating IP20
Installation On DIN rail 35mm according to JB6525
Connection capacity: Cross-section of conductors up to 25mm², Cross-section of busbar from 0.8-2mm²,reversibility of connections
Tightening torque 2 Nm
Ambient temperature (°C) -5°C ~ +40°C
Altitude (m) ≤2000m
Relative air humidity no more than 95%
Pollution degree
Installation condition Used in place without obvious shock and vibration
Weight (g) 80 490 610 710 820

Exterior and dimensions

FTB3LE11

Number of poles width(mm) Modules
1 / 2 54 3
2 / 2 72 4
3 / 3 100 5.5
3 / 4 112.5 6.25
4 / 4 130.5 7.25




When you buy things from China they might come with a power cable that has 0.5mm2 conductors but is somehow still rated at 10A. we didn’t believe that so gave it a test.

The cable only 0.5mm2 but the rating molded onto the connectors is 250V 10A.
The conductors don’t appear to be copper. They have a high resistance.

The on load voltage at the supply end of the cable was 229.6V
8.7A at the stat and 8.39A just before it shorted out.
Surprisingly, the cable blew itself clear and did not cause the supply circuit breaker to trip.



This video covers the starting sequence of a single phase capacitor start capacitor run electric motor, as well as a common problem with the mechanical centrifugal start switch.

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