500A High Voltage DC Contactor, 9-36V Coil Voltage

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$289.08

Reliable 500A high voltage DC contactor comes with 9-36V coil voltage range, NO contact form, non-polarity, and NO or NC auxiliary contact. It can withstand the continuous loads of DC and the intense arcing that occurs during disconnection.

Auxiliary Contact *
Auxiliary Contact Form *

SKU: ATO-DCCON-500

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Delivery date: 6-12 days

Overview

500A high-voltage DC contactor for sale online. The DC magnetic contactor features a 9-36V coil voltage, NO contact form, and normally open or normally closed auxiliary contact switch, CE、CCC, and RoHS certifications.

Features

500A DC contactor adopts high-strength epoxy resin sealing with nitrogen-based gas filling, eliminating arc leakage risks, preventing contact oxidation, and ensuring safe operation without fire or explosion during its service life.
It provides reliable performance with 500A continuous current at 85℃, IP67 contact protection, insulation resistance up to 100MΩ (1000V DC), and dielectric strength of 3.5kV between contacts and coil.
High voltage DC contactor meets IEC 60664-1, GB/T14048.1, GB/T14048.4 standards, complies with RoHS (2015/863/EU) and REACH (1907/2006/EC), and is certified by CE, CCC, and RoHS.

Specifications

Model		ATO-ADH-500
Main Contact Specification
Contact Arrangement		1K (1NO)
Contact Polarity		Non-polarity
Contact Resistance		≤0.5mΩ
Contact Voltage Drop		≤0.1V (at 200A)
Max. Switching Voltage		1,500V DC
Max. Breaking Current		4,000A (320V DC) 1 Ops
Electrical Endurance (Resistive Load)		2,000 Ops (1,000V DC, 500A)
		3,000 Ops (750V DC, 500A)
		5,000 Ops (450V DC, 500A)
Mechanical Endurance		200,000 Ops
Withstand Current		500A, Continuous
		750A, 90s
		1,000A, 40s
		2,100A, 1s
		18,000A, 10ms
Performance Parameter (at 23℃)
Pickup Voltage		See Coil Parameter Tables
Dropout Voltage		See Coil Parameter Tables
Pickup Time		≤40ms
Contact Bounce Period		≤5ms
Dropout Time		≤10ms
Dielectric Strength	Between Main Contacts	10,000V DC 1 min, Leakage Current≤1mA
	Between Main Contact and Coil	3,500V DC 1min, Leakage Current≤1mA
Insulation Resistance	Initial State	1,000MΩ (1,500V DC 1min)
	After Electrical Life	500MΩ (1,500V DC 1min)
Shock	Stability	20g (Power On)
	Strength	50g
Vibration		20g, 80~2,000Hz, 1/2 Sine Wave (Power On)
Relative Humidity		5%~95%RH
Temperature		-40℃~85℃
Load Terminal		External Thread M10
Weight		About 1000g
Dimension		67x75.5x104mm
Installation Method		Bottom Installation
Temperature Rise		Main Contact Temperature Rise≤50K (370mm2, 500A Continuous)
Auxiliary Contact Parameter
Aux. Contact Arrangement		FK/FB/FZ (1NO/1NC/1CO)
Aux. Contact Rated Current		5A
Aux. Contact Max. Breaking Voltage		120V DC
Coil Parameter
Coil Voltage		9-36V
Pickup Voltage (DC)		9-36V
Dropout Voltage (DC)		5-7V
Coil Resistance		1.8Ω±10%
Starting Current		≤4A
Holding Power		≤8W

Dimensions (Unit: mm)

500A high voltage DC contactor without auxiliary switch dimension

Wiring Diagram

Note: A1&A2 main terminals with non-polarity; 3&4&5 auxiliary contact terminals; 1&2 Circuit diagram 9-36V.

Applications

High voltage DC contactors are widely applied in electric vehicles (EVs), renewable energy systems (solar and wind), energy storage systems (ESS), DC charging stations, uninterruptible power supplies (UPS), and industrial equipment that requires safe and reliable DC switching.

$500A high\ voltage DC contactor applications$

Tips: How does a high-voltage DC contactor extinguish arcs?

Since DC arcs do not naturally cross zero like AC, special arc-extinguishing techniques are required. High voltage DC contactors typically use sealed chambers filled with inert gases (like nitrogen), permanent magnets, or arc-suppression materials to quickly dissipate and quench the arc when contacts open.

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