Factory source manufacturing Miniature circuit breaker-FTB2LE to Kenya Importers


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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Product illustration:


 Technical Data

Model FTB2LE Miniature 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) C


6, 10, 16, 20, 25, 32, 40, 50, 63


Rated residual operating current(mA) AC A 30


Rated residual non-operating current(mA) AC




Residual current breaking time 30mA≦0.1s  250mA≦0.04s
Max. breaking time(s) 0.1
Rated short-circuit breaking capacity(KA) 6.5
Rated residual current breaking capacity(KA) 4.5
Mechanical & electrical life: 20,000 operations
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) 340 420 530 630 710


Exterior and dimensions


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




Combining an Arduino with a 7 segment display and a RC servo motor a Parking Lot with “Available places display” is simulated.
The sensing of cars is done using cardboard and aluminium foil.
Internal pull-ups of the Arduino (ATMEGA328) was used in the sensing switch pads.
Sketch (code) available at : www.arduining.com


Gagandip Singh N. Khanduja-Laljibhai Chaturbhai Institute of Technology, Bhandu-Elements of Electrical Engineering-Safety & protection:Safety, electric shock, first aid for electric shock other hazards of electrical laboratories & safety rules, use of multimeters, grounding, importance of grounding, equipment of grounding for safety. Circuit protection devices, fuses, MCB, ELCB & relays.

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