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    3 Pole Circuit Breakers

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    2 amp 3 pole Miniature Circuit Breaker

    $81.69
    SKU: ATO-MCB-3P02
    Three pole 2 amp thermal-magnetic miniature circuit breaker (MCB) in accordance with IEC standard for 35 mm DIN rail mounting with toggle actuation and 6kA interrupt capacity. C curve trip characteristic, give you the ability to configure the exact protection scheme you required.

    6 amp 3 pole Miniature Circuit Breaker

    $76.85
    SKU: ATO-MCB-3P06
    6 amp current rating miniature circuit breaker with 6kA excellent breaking capability for its compact size, is designed for the short circuit and overload protection in the AC 50Hz circuit, 230/400V 3 pole voltage.

    13 amp 3 pole Miniature Circuit Breaker

    $38.00
    SKU: ATO-MCB-3P13
    3 pole MCB circuit breaker with 6kA short circuit breaking capacity and 13A current rating at 230/400V AC, possibility for locking the toggle in ON or OFF position. High density mini circuit breaker is thermal-magnetic type supplementary overcurrent protective device.

    16 amp 3 pole Miniature Circuit Breaker

    $70.69
    SKU: ATO-MCB-3P16
    16 amp three pole thermal-magnetic mini circuit breaker meets IEC standard for 35 mm DIN rail mounting with toggle actuation and 6kA interrupt capacity. C curve trip characteristic, is designed for the short circuit and overload protection in the AC 50Hz circuit, 230/400V voltage.

    20 amp 3 pole Miniature Circuit Breaker

    $71.39
    SKU: ATO-MCB-3P20
    Three pole DIN rail mountable miniature circuit breaker is rated at 230/400V AC supply with 6kA short circuit breaking capacity. Short-circuit protection, with C curve trip characteristic.

    32 amp 3 pole Miniature Circuit Breaker

    $74.39
    SKU: ATO-MCB-3P32
    32 amp 3 pole miniature circuit breaker at lower price, standard 35 mm DIN rail mounting, easy to install. It is capable of protecting the system against short circuit current up to 6kA, with C curve trip characteristic.

    40 amp 3 pole Miniature Circuit Breaker

    $73.79
    SKU: ATO-MCB-3P40
    Economical price 3 pole 40 amp DIN rail mountable miniature circuit breaker is rated at 230/400V AC supply with 6kA short circuit breaking capacity. Short-circuit protection and overload protection, with C curve trip characteristic, DIN rail mounted.

    50 amp 3 pole Miniature Circuit Breaker

    $82.29
    SKU: ATO-MCB-3P50
    Miniature circuit breaker with 3-pole, 50 ampere current rating, excellent breaking capability of 6kA at 240/415V AC voltage, module width of only 18 mm per pole. C curve trip characteristic, can be used in IEC standard applications.

    63 amp 3 pole Miniature Circuit Breaker

    $82.29
    SKU: ATO-MCB-3P63
    63 amp 10kA mini circuit breaker is intended for the short circuit and overload protection in the 50Hz AC circuit, 230/400V AC supply. 3 pole MCB in accordance with IEC standard, c-curve trip characteristic to suit most applications.

    A 3 pole miniature circuit breaker (MCB) is an electrical device used for protecting electrical circuits from overloads and short circuits. It is designed to interrupt the flow of current when the current exceeds a predetermined value, thus preventing damage to the circuit and the connected devices.

    The 3 pole configuration indicates that the MCB has three separate poles or contacts that can be connected to three different phases of a three-phase electrical system. Each pole consists of a thermal and a magnetic trip unit, which detect abnormal current conditions.

    The thermal trip unit measures the heat generated by the current passing through the MCB and trips the circuit breaker when the current exceeds a certain threshold for a sustained period. The magnetic trip unit, on the other hand, detects high current surges that occur during short circuits and trips the breaker instantaneously.

    ATO provides 2 amp, 6 amp, 16 amp, 20 amp, 32 amp, 40 amp, 50 amp, 63 amp 3 pole miniature circuit breaker with DIN rail mounting for different load requirements. The 3 pole MCB provides protection for three-phase electrical installations, ensuring safe and reliable operation. It is commonly used in industrial and commercial applications where three-phase power is utilized.