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

300 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
300 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
300 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
300 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
300 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
300 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
300 Amps High Voltage DC Contactor, 12V/24V Coil, 1 NO
  • Stock: In Stock
  • Model: PEACO-ADH300
Ex Tax: $178.21

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1000V dc contactor provides 300A continuous duty rating, high switching power, 12V to 1000V DC rated load voltage, 12V dc coil contactor & 24V dc coil contactor for option. 1 NO auxiliary contact can be customized. High duty contactor/relay with energy saving board for use with power distributions systems for telecommunications, concrete mixers, and other applications.

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. Magnetic arcing.
  • 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. Standard type and energy saving type DC contactors available.
  • Meet CCC, RoHS, CE and ISO9001 conformance requirements.

Applications: 300A high voltage 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-ADH300
Weight 480g
Dimension 80*65*74 mm
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 950 kW / 3000A 320VDC (>1 time)
Auxiliary Contact Form (Optional)* NO
Rated Load Current 300A
Mechanical Life 1,000,000 times
Electrical Endurance (Resistance) 6,000 times (300A, 750V DC)
Min. Load 1A 12VDC
Standard Continuous (Carry) Current (40mm2 Leads) 300A
Short Time Overload Current (40mm2 at 40℃) 400A 5min, 500A 2min, 600A 30s
Load Terminal and Center Distance M10 External Thread
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 PCB
Standard 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: 10,000VAC, ≤ 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): 6,000 times (300A 750VDC)
Usage Conditions
  • Humidity: 5~95% RH
  • Temperature: -40℃~85℃

High Voltage 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.
DC Contactor Circuit Schematic
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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