12 Years manufacturer Miniature circuit breaker-FTB3 for Qatar Factories


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

Related video

continue to improve, to ensure product quality in line with market and customer standard requirements. Our company has a quality assurance system have been established for 12 Years manufacturer Miniature circuit breaker-FTB3 for Qatar Factories, If you are interested in any of our products or would like to discuss a customized order, please feel free to contact us.

Product illustration:


Product Features

- A breaking capacity of 12kA up to 32A and 10kA between 40 to 63A.

- Current-limiting scheme: in the event of a short circuit, are able to limit the let-through current to 60%-70% of the rated current.

- The trip mechanism ensures perfect closure every time,thereby considerably improving the performance of these devices and extending their average lifetime.

-The arc extinguishing system: allows the short-circuit currents of very high value to be interrupted extremely rapidly, the remarkable opening speed of contacts opening and the structure of the arcing chamber contribute to extinguishing the arc in the shortest possible time, ensuring reliable protection of short-circuit.

- The internal contact position allows an exact information of the circuit-breaker status: “green”,open contacts;“red”,closed contacts,independently of the toggle position.

- Sealing/locking sealable with 1 mm wire, to prevent unwanted tripping.

- The supply lines of the protected circuit can be connected to either the upper or lower terminals of the circuit-breakers(reversibility of connections).

- The double terminal of these circuit-breakers enables simultaneous connection of cables and busbars.

Technical Data


Breaking capacity(KA) 40-63A 10
6-32A 12
Mechanical and electrical life: 20,000 operation
Protection rating IP20
Installation On symmetrical DIN rail 35mm /Panel Mounting
Connection capacity: Cross-section of conductors up to 25mm², Cross-section of busbar from 0.8-2mm², reversibility of connections
Ambient temperature (°C) -5°C ~ +40°C
Altitude (m) not higher than 2000m
Relative air humidity no more than 95%
Pollution degree
Weight (g) 116 234 352 472

Tripping characteristic


Exterior and dimensions




Number of poles

1P 2P 3P 4P
a 80±0.8
b 74.2±0.8 75.7±0.8
c 17.8±0.5 35.6±0.8 53.4±0.8 71.2±0.8
d 44±0.8
e 68.7±0.8 70.2±0.8
f 45±0.8
g 35.5±0.8


Please refer to below table for the connection of wires with a cross section area

Rated current In(A) Nominal cross section area of copper wire(mm²)
1~6 1
10 1.5
16,20 2.5
25 4
32 6
40,50 10
63 16

Mark Donovan of http://www.HomeAdditionPlus.com reviews a high voltage electrical circuit tester and a digital multimeter electrical circuit tester for use in home electrical wiring. Learn how to use an electrical circuit tester in this video. See how to test your own electrical home wiring safely using an electrical circuit tester or digital multimeter.

Wylącznik nadmiarowoprądowy

Parametry techniczne:
Prąd znamionowy: 25 A
Charakterystyka wyzwalania: B
Znamionowa zwarciowa zdolność łączeniowa: 6 kA
Ilość biegunów: 1 P
Ilość modułów: 1
Znamionowe napięcie robocze Ue (AC): 230/400 V
Znamionowe napięcie izolacji Ui: 500 V
Częstotliwość: 50/60 Hz
Całkowite straty mocy dla prądu znamionowego: 3,5 W
Wytrzymałość elektryczna (ilość cykli): 10000
Wytrzymałość mechaniczna (ilość cykli): 20000

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