Close
(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories
Preferences
Search

400A DC Contactor, 12V/24V/48V/220V

$158.61
Single pole DC contactor with 12V, 24V, 48V, 220V coil voltage for choice, has one normal open contact (SPST 1NO), contact circuit rated load current of 400A, offers exceptional performance in an extremely small and lightweight device. 400A DC contactor is suitable for switch control of system circuits such as battery cars, cleaning cars, communication power supplies and automobile air conditioners.
*
SKU: ATO-DCCON-C400
30-day Returns
Free Shipping
Delivery date: 2-12 days

High performance 400A DC contactor with normally open type. This 400 amps contactor is available in coil voltage 12V, 24V, 48V, 220V. 400A DC contactor with high-performance quality, low cost and manufacturer direct sale. The single pole 400A DC contactor is suitable for switch control of electric circuits such as electric forklifts, battery trucks, tractors, excavators, brick making machines, etc.

Features

  • 400A DC contactor has the characteristics of small size, large load capacity, long service life and simple maintenance, and is very popular among users.
  • 400 amps contactor complies with the requirements of the ministry standards JB2286-78, JB3974-85, YD/585-92, YD/T512-92. It has been tested in the factory and by relevant testing units and meets the requirements of the ministry standards. It has been used by users for many years to satisfy users to the maximum extent. Needed, reliable quality.
  • Single coil 400A DC contactor are suitable for electric forklifts, battery trucks, tractors, excavators, brick making machines, cleaning vehicles, automotive air conditioners, communication power supplies, switch control of electronic control circuits of uninterruptible power supplies, electroplating power supplies and other systems.

Specifications

Model ATO-SZJ400A-D
Contact Form Normally open
Coil Rated Voltage (DC V) 12V, 24V, 36V, 48V, 60V, 72V, 84V, 120V, 150V, 220V
Contact Rated Voltage (DC V) ≤80V
Contact 48V Circuit Rated Load Current (DC-1) 400A
Main Contact Contact Voltage Drop under 100A Load ≯80mV
Cooling pull-in voltage (V), (20±5)℃ ≯70%
Cooling Release Operating Voltage (V), (20±5)℃ ≯35%, ≮5%
40℃ Coil Operating Voltage Range 0.8-1.2Us
Power-on Action Time 35ms
Power off Release Time 10ms
Maximum Bounce Time of Contact Connection 10ms
Maximum Bounce Time of Contact Disconnection 3ms
Insulation Resistance 20MΩ
Dielectric Strength 50Hz/60Hz 1000VAC 1minute
Maximum Breaking Capacity of Main Contact (Power on for 5ms) 1000A/5ms at 48V/DC
Coil Power Consumption (W) 9-18
Coil Temperature Rise (K) ≤60
Terminal Temperature Rise (K) ≤65
Electrical Life 20000times
Mechanical Life 300,000 times
Work Specifications Continuous
Contact Material Silver alloy
Load Terminal Type M10 screw
Coil Terminal Type M4 screw
Auxiliary Contact Rated Load (Optional) 2A/48VDC, 5A/24VDC
Testing Agency Certification CCC, CE, FCC, RoHS


Load Characteristic Curve

400A DC contactor estimated electric life

400A DC contactor estimated contact performance
Installation Dimension Diagram

400A DC contactor installation dimension drawing

400A DC contactor micro installation dimension drawing

400A DC contactor e2 installation dimension drawing

SZJ400A-D Wiring Diagram & Coil Temperature Rise Curve Graph

400A DC contactor d wiring diagram

One way is normally open (SPST 1NO)
1 and 2 are contact terminals
A1 and A2 are coil terminals

400A DC contactor d coil temperature rise curve graph

Mechanical Capabilities and Usage Environment

Contact Terminal M8 Tightening Torque (Nm) ≯20.5 is appropriate
Coil Lead-out M4 Tightening Torque (Nm) ≯1.2 is appropriate
Ambient Temperature -25~+70℃
Relative Humidity +20℃ 98%
Vibration Frequency at Fixed Location 3G, 1~50Hz, amplitude 0.5mm
Impact (60~100) times/min, acceleration ≤4g
Altitude 2000 meters
Installation Direction Arbitrary
Protection Level IP40 (equivalent to IEC60947)

Tips: How to judge the quality of DC contactor?

  • Appearance: Check the DC contactor for abnormal wear, deformation or corrosion.
  • Electrical performance: Use a multimeter or rack test equipment to test the continuity of the circuit and check for damage or open circuits.
  • Mechanical performance: Check the sensitivity, operating force and reset condition of the DC power contactor switch to see if there are any problems that are too large or too small.
  • Insulation performance: Test the DC contactor to check whether there is leakage or load current drop.
  • DC contact material: The material of the contacts determines the service life of the DC power contactor. The cost of really good contacts is relatively high and is made of silver alloy. Some inferior contacts are made of copper alloy, or a layer of silver is electroplated on the copper contacts. Alloys have a very short service life.
 
Write your review for 400A DC Contactor, 12V/24V/48V/220V
  • Only registered users can write reviews
  • Bad
  • Excellent