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    350 Amps Isolator Switch, 3 Pole/ 4 Pole

    High performance 350 Amps Isolator switch for sale, can choose from 3 pole or 4 pole, rated insulation voltage 690V. Widely used in power distribution systems and automation systems in construction, electric power, petrochemical and other industries.
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    Delivery date: 6-12 days

    3 Pole or 4 pole isolator switch rate current 350A, used for infrequent connection and segmentation circuit and electrical isolation. Good quality and low price, manufacturer direct sale.

    350A Isolator Switch Specifications

    Basics Model ATOHGL-350A
    Pole 3 Pole/4 Pole
    Weight 3 Pole 4.3 kg
    4 Pole 4.3 kg
    Technical Parameters Rated current 350A
    Rated insulation voltage Ui 690V
    Dielectric strength 1890V
    Rated surge-resistant voltage Uimp kV (installed category IV) 6
    Rated working current le 380V AC-21 315A
    AC-22 315A
    AC-23 315A
    660V AC-21 315A
    AC-22 315A
    DC-23 125A
    220V DC-21 315A
    DC-22 315A
    DC-23  315A
    440V DC-21 315A
    DC-22 315A
    DC-23 315A
    Motor power P(380V) kW 380V 160 kW
    660V 185 kW
    Rated short-time withstand current lcw (kA rms)0.1s/ 1.0s 12.5
    Rated breaking capability Icn (Arms) AC23 380VA 2520
    Rated making capacity Icm (Arms) AC23 380V 3150
    Rated short-current making capacity Icm' (Kapeak value) 25.2
    Mechanical durability (number of cyclic operation) 10000
    Electric durability Ue=660V, Rated current COSφ=0.95AC21 1700
    COSφ=0.65AC22 100
    COSφ=0.35AC23 500
    Working Environment Moment of operation 1.2 Nm
    Temperature -5℃~+55℃
    Way of working Continuously working
    Operating Handle
    Installation form Vertical
    Altitude ≤2000m
    Pollution level 3
    Overvoltage level
    IP level IP 20


    160A-630A  isolator switch dimension

    Current A B C D D1 E ΦL J K N P R S U ΦX Y F H
    350A/3P 230 240 179 50 137 115 7 210 140 135 65 32 40 206 11 37 95 20
    350A/4P 290 240 179 520 137 114 7 210 140 135 65 32 40 206 11 37 95 20

    Operation Mode

    Load Isolator Disconnect Switch


    350 Amps Isolator Switch Details

    Tip: Precautions for isolator switch operation

    1. During the overhaul of electrical equipment, provide an electrical interval and a clearly visible disconnection point to ensure the personal safety of maintenance personnel.
    2. Isolating switch cannot be operated with load: it cannot be operated with rated load or large load, load current and short-circuit current cannot be divided or combined, but the circuit with small load and no-load circuit can be operated with arc extinguishing chamber.
    3. In general power transmission operation: first close the isolating switch, then close the circuit breaker or load switch; when the isolating switch is powered off: disconnect the circuit breaker or load switch first, and then disconnect the isolating switch.
    4. The selection is the same as other electrical equipment, and its rated voltage, rated current, dynamic stable current, thermal stable current, etc. must meet the needs of the use occasion.

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