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185 amp 3 phase AC Magnetic Contactor, 24V/110V/220V Coil

$296.16
Low price 3 phase 3 pole AC magnetic contactor is used in electric motor control and DIN rail or panel mounting, with 110V/220V/380V coils. Different contact form are available, intended for frequently switching on and off 3 phase loads up to 185 amps.
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SKU: ATO-ACCON-185A
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Delivery date: 6-12 days

ATO 3 pole AC magnetic contactor is used in 3 phase units. This contactor relay works between power source and high load electrical motor to balance changes in electrical frequency which may come from a power supply.

Specification

Model ATO-CJX2-F185
Rated Current le max AC-3 (Ue≤440V) 185A
le max AC-1 (θ≤40°C) 275A
Coil Rated Voltage (Optional) 110V AC, 220V AC, 380V AC
Contact Form 3NO
Auxiliary Contact (Optional) 2NO, 2NC, 1NO+1NC, 2NO+2NC, 1NC+3NO, 4NO, 4NC
Frequency 50Hz/ 60Hz
Rated Insulated Voltage (Ui) 1000V
Rated Impulse Withstand Voltage (Uimp) 8kV
Rated Operational Voltage 440V
Conventional Thermal Current (θ≤40°C) 275A
Operation Frequency AC-1, AC-2, AC-3 1200 times/h
AC-4 300A
Rated Power (AC-3) 220/240V 55kW
380/400V 90kW
415V 100kW
440V 100kW
500V 110kW
660/690V 110kW
1000V 100kW
Connection/ Wiring Number of Lines 2
Line Size 25x3mm2
Cable with Splicing 150mm2
Cable with Connector 150mm2
Screw Diameter φ8
Tightening Torque 18N.m
Standards-Compliant IEC60947-4-1, GB14048.4, EN60947-4-1
Dimensions 174 x 168.5 x 181mm
Weight 9.5kg

Details

185 amp 3 phase AC Magnetic Contactor Details

Tips: Reasons for poor contact of the AC magnetic contactor

Poor contact of the AC contactor will increase the contact resistance between the moving and static contacts, resulting in excessively high temperature of the contact surface, and causing the surface contact to become a point contact, or even non-conduction. The reasons for this failure are:  

  • There are oil stains, flower hairs, and foreign objects on the contacts.   
  • Because of long-term use, the surface of the contact is oxidized.   
  • Defects, burrs or metal swarf particles caused by arc ablation.
  • There is jamming in the moving part.
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