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500 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO

500 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
500 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
500 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
500 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
500 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
500 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
500 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
  • Stock: In Stock
  • Model: PEACO-ADH500
Ex Tax: $257.57

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High voltage DC contactor comes with 500A continuous duty rating, normally open type, 12V dc coil contactor and 24v dc coil contactor are optional, other coil rated voltages can be customized for your special needs. 1NO auxiliary contact can be chosen. High duty contactor / relay is sealed by epoxy resin, widely used in harsh environment for electric control systems.

For more DC contactors and datasheet, please visit here Peaco Support DC contactor catalogue.pdf.


  • Epoxy sealed. Epoxy resin encapsulated seal structure allows the working in explosive and harmful environment and coils and contacts will not be oxidized and polluted.
  • High efficiency coil. The energy-saving coil holds 1.7~2.0W power, counter electromotive force up to 0V.
  • Non-polarity. There is no polarity requirement for contacts and coil connections.
  • No electromagnetic counter force. Low energy consumption, low heat.
  • Compact design, low noise.
  • Meet CCC, RoHS, CE and ISO9001 conformance requirements.

Applications: 1000V dc contactor is normally open type (SPST-NO, 1NO) contact form, which is used in electric control systems such as automotive electric winches, telecommunication equipment, construction machinery, battery trucks, electric forklifts, trains, ships, uninterrupted power supplies, etc.


Basic Specification Model PEACO-ADH500
Weight 1250g
Dimension 88*86*102mm
Certification CCC, RoHS, CE and ISO9001
Application Continuous operation
Contact Specification Contact Arrangement* SPST-1NO Contact
Contact Resistance ≤ 30 mΩ (@6V DC 20A)
Rated Load Voltage 12V~1000V DC
Maximum Switching Power / Current 1600 kW / 3000A 320VDC (>1 time)
Auxiliary Contact Form (Optional)* NO
Rated Load Current 500A
Mechanical Life 1,000,000 times
Electrical Endurance (Resistance) 3,000 times (500A, 750V DC)
Min. Load 1A 12VDC
Standard Continuous (Carry) Current (40mm2 Leads) 500A
Short Time Overload Current (40mm2 at 40℃) 400A 5min, 500A 2min, 600A 30s
Load Terminal and Center Distance M12 External Thread / 32mm
Auxiliary Contact Specification Auxiliary Contact Form (Optional)*
Max. Current
30V DC 2A, 125V AC 3A
Min. Current
8V DC, 100mA
Contact Resistance
Coil Specification Coil Type Energy Saving Type
Voltage 12/24VDC
Working Voltage 8~36V
Max. Voltage 36V
Action Voltage 7~8V
Release Voltage 5~6V
Coil Resistance 3.1Ω
Transient Surge Current 2.5A (0.1s)
Average Holding Current 0.14A in 12V contactor
Min Start Current 2.0A
Steady State Power 1.7~2.0W
Actuation Times ≤30ms
Release Times & Bounce Times ≤10ms & ≤5ms
1. Auxiliary Contact Form: NO - Normally Open Auxiliary Contact.
2. The parameters above are the initial values measured at 23℃. Other coil rated voltages can be customized.
Electrical Specification
  • Insulation Resistance: 1,000MΩ (500VDC) between contacts, between coil and contacts and between shell and contacts.
  • Dielectric Strength: 2,500VAC, ≤ 1mA between contacts and 2,500VAC, ≤ 1mA between coil and contacts
Mechanical Specification
  • Impact: 196m/s2 (6 ms) stability and 490m/s2 (6 ms) strength.
  • Vibration: Sine 80Hz~2000Hz (20G Max.)
  • IP Grade: IP67
Life Expectancy
  • Mechanical Life: 1,000,000 times
  • Electrical Endurance (Resistance): 3,000 times (500A 750VDC)
Usage Conditions
  • Humidity: 5~95% RH
  • Temperature: -40℃~85℃

500A DC Contactor Dimension (unit: mm)

Energy Saving Type

High Voltage DC Contactor Dimension
Re: Sizes of some products are noted without dimensional tolerance. So, consider the tolerance of ±0.3 mm for dimensions less than 10mm, ±0.5 mm for dimensions 10-50mm and ±0.8 mm for dimensions more than 50 mm.
500A DC Contactor wiring Diagram
DC Contactor Connection Diagram
  • Resistive load includes the maximum inductance up to 300 uH.
  • It is recommended to do test for different situations according to the extrapolation.
  • Dielectric strength drops to lower than 100mΩ at 1000VDC after life time.
  • The maximum attracting current is 650A.

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