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NDC5K Series Contactors
Updated：July 17,2026 17:55PM

This product is mainly used in the photovoltaic and wind power industryfor remote connecting and breaking of the circuit. The contactor can also be used in the industrial control sector for remote connecting controlling AC motors which can control the inverse operation or reverse brake of the AC motors.
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NDC5K
NDC5K

Features of NDC5K Series

  • Rated current up to 1720A and rated operational voltage up to AC1000V.
  • Mechanical life up to 3,000,000 operations, with strong short-circuit coordination and wide operating temperature range.

Technology data of NDC5K Series

Specification NDC5K-630 NDC5K-630H NDC5K-800 NDC5K-800H NDC5K-1450R NDC5K-1450R/H NDC5K-1700R NDC5K-1700R/H
Number of poles 3
Agreed thermal current of the free air Ith/A 1050 1310 1450 1720
Rated current(A) AC-1
Ue≤1000V		 θ≤40°C 1050 1310 1450 1720
θ≤50°C 931 1250 1450 1720
θ≤55°C 888 1155 1450 1720
θ≤65°C 850 1100 1450 1450
θ≤70°C 700 900 1080 1350
AC-3 380/400V 630 800  
 
/		  
 
/
660/690V 630 800
1000V 420 580
AC-4 380/400V 510 650
660/690V 510 650
1000V 345 465
Rated  power(KW) AC-1,+40℃ 380/400V 650 766 914 1071
660/690V 1130 1330 1576 1861
1000V 1712 2015 2044 2417
AC-3 380/400V 355 450  
 
/		  
 
/
660/690V 630 750
1000V 600 800
AC-4 380/400V 280 355
660/690V 494 633
1000V 509 678
Average Power consumption of each pole(W) At Ith 69 96 135 188
Rated operational voltage Ue AC380/400V/415V,AC660/690V,AC1000V
Insulation voltage Ui AC1000V
Impulse withstand voltage Uimp 8kV
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