OEM Customized wholesale Miniature Circuit Breaker FTBD-PV for Bolivia Factories


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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We are experienced manufacturer. Wining the majority of the crucial certifications of its market for OEM Customized wholesale Miniature Circuit Breaker FTBD-PV for Bolivia Factories, We look forward to supplying you with our products in the near future, and you will find our quotation is very reasonable and the quality of our products is very excellent!

Model: FTBD-PV miniature circuit-breaker
Number of poles: 1P 2P 3P 4P
Rated operating voltage (V): DC 300 DC 600 DC 900  DC 1200
Rated current (A): 6、10、16、20、25、32、40、50、63
Rated short-circuit breaking: 10 10 7.5 7.5
capacity(KA) capacity(KA)
Rated impulse withstand
voltage Uimp(KV):
Mechanical and electrical life: 20000
Protection rating:  IP20
Installation: On DIN rail 35mm according to GB/T 19334-2003
Connection capacity: Cross-section of conductors up to 25mm²,
Cross-section of busbar from 0.8-2mm²
Ambient temperature (°C):
Altitude (m): ≦2000m

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    Green like powder on your battery, terminal, or wires is a bad sign. When engine heat slowly degrades connectors or wires, the plastic turns brittle and allows water to intrude. If this worsens, the corrosion will succumb the circuit. That green like powder will eat the copper or create an arch over time. Wires on or near a hot frame or improperly shielded MAY PRESENT RECURRING, ONGOING, OR REPEATED PROBLEMS.

    Using rust neutralizer such as Loctite on connectors or wires will impede the flow of electricity and cause inumerable problems. If you have acid corrosion or rust; take the time to rewire the wiring harness or effective methods that does not degrade the integrity of the electrical circuit, the wiring harness, or the component you are diagnosing.

    There are three strategic points. First is at the starter relay. Second is the fuse block. Third is the electrical component and wiring harness connector. These specific points allows you to take measurements and analyze your results. After you analyze the results taken, you should be able to determine what the problem is and how to remedy it.

    working principle of three phase induction motor-induction motor-How does an Induction Motor work-An electrical motor is such an electromagnetically device which converts electrical energy into a mechanical energy. In case of three phase AC operation, most widely used motor is Three phase induction motor as this type of motor does not require any starting device or we can say they are self starting induction motor.For better understanding the principle of three phase induction motor, the basic constructional feature of this motor must be known to us. This Motor consists of two major parts:
    Stator of three phase induction motor is made up of numbers of slots to construct a 3 phase winding circuit which is connected to 3 phase AC source. The three phase winding are arranged in such a manner in the slots that they produce a rotating magnetic field after 3Ph. AC supply is given to them.
    Rotor of three phase induction motor consists of cylindrical laminated core with parallel slots that can carry conductors. Conductors are heavy copper or aluminum bars which fits in each slots & they are short circuited by the end rings. The slots are not exactly made parallel to the axis of the shaft but are slotted a little skewed because this arrangement reduces magnetic humming noise & can avoid stalling of motor.

    Working of Three Phase Induction Motor

    Production of Rotating Magnetic Field

    The stator of the motor consists of overlapping winding offset by an electrical angle of 120°. When the primary winding or the stator is connected to a 3 phase AC source, it establishes a rotating magnetic field which rotates at the synchronous speed.
    Secrets Behind the Rotation:
    According to Faraday’s law an emf induced in any circuit is due to the rate of change of magnetic flux linkage through the circuit. As the rotor winding in an induction motor are either closed through an external resistance or directly shorted by end ring, and cut the stator rotating magnetic field, an emf is induced in the rotor copper bar and due to this emf a current flows through the rotor conductor.
    Here the relative speed between the rotating flux and static rotor conductor is the cause of current generation; hence as per Lenz’s law the rotor will rotate in the same direction to reduce the cause i.e. the relative velocity.

    for more information about induction motor plz go to the link below-



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