VIOX Electric
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VIOX CJX2s High-Current AC Contactor

Three-pole high-current contactors for AC motor starting and
control.

  • 120–800 A AC-3 at 380/400 V, depending on model
  • 55–450 kW motor ratings at 380/400 V
  • 1000 V rated insulation voltage
  • Dual-coil control and 2NO + 2NC auxiliary contacts

Overview

VIOX CJX2s high-current AC contactors are designed for frequent AC
motor starting, control and remote circuit switching. The model range
listed below covers 120–800 A AC-3 at 380/400 V, with three main poles
and a rated insulation voltage of 1000 V. Suitable thermal overload
relays can be combined with the contactors to form motor starters.

Features

  • Dual-coil control circuit with separate pull-in and holding
    characteristics.
  • Bottom drawer-type coil construction for maintenance access.
  • Standard 2NO + 2NC auxiliary contacts.
  • Rail or screw mounting, with model-specific installation
    dimensions.
  • Optional front dust cover and arc barriers for applicable
    configurations.

Technical Specifications

Model AC-3 current at 380/400 V AC-3 motor power at 380/400 V AC-3 current at 660/690 V AC-3 motor power at 660/690 V
CJX2s-120 120 A 55 kW 86 A 80 kW
CJX2s-160 160 A 75 kW 107 A 100 kW
CJX2s-185 185 A 90 kW 107 A 100 kW
CJX2s-225 225 A 110 kW 118 A 110 kW
CJX2s-265 265 A 132 kW 170 A 160 kW
CJX2s-330 330 A 160 kW 235 A 200 kW
CJX2s-400 400 A 200 kW 303 A 300 kW
CJX2s-500 500 A 250 kW 353 A 335 kW
CJX2s-630 630 A 335 kW 400 A 350 kW
CJX2s-800 800 A 450 kW 470 A 375 kW
Parameter Specification
Main poles 3P
Rated insulation voltage Ui 1000 V
Rated operating voltage Ue in the rating table 380/400 V; 660/690 V
Auxiliary contacts 2NO + 2NC
Rated AC coil voltage options 110 V, 127 V, 220/230 V, 380/400 V
Coil frequency options 50 Hz; 50/60 Hz
Enclosure protection IP00
Referenced standards GB/T 14048.1 / IEC 60947-1; GB/T 14048.4 / IEC 60947-4-1

Select the contactor by the motor voltage, utilization category and
model-specific rating. Coil supply voltage is a separate selection from
main-circuit operating voltage. The contactor is used with appropriate
motor and circuit protection.

Dimension

Match the frame size and fitted accessories to the installation
drawing. Dimensions for CJX2s-120–160 and CJX2s-185–800 are shown
separately.

CJX2s high-current contactor installation dimension drawings

Ordering Information

For a quotation, provide the model, motor voltage and power, coil
voltage and frequency, overload-relay and accessory requirements, and
quantity.

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