30A DC contactor

FOB Reference Price:Get Latest Price
  • 1 - 9 Units
    $30.00
  • >=10 Units
    $28.00
Report Suspicious Activity
Overview
Quick Details
Place of Origin:
Jiangsu, China (Mainland)
Brand Name:
KEJIA
Model Number:
SJD-30
Supply Ability
Supply Ability:
100 Unit/Units per Month
Packaging & Delivery
Packaging Details
carton
Port
shanghai

The scope of products:
1. it is used for the driving and controlling system of mining equipment and mechanical vehicles.
2. it is used for power control and circuit insulation of industrial machinery.
3. for DC switch equipment.
4. for battery distribution and backup.
5. for the charging of hybrid electric vehicles and electric vehicles

 

The characteristics of the product:
1. reliable sealing makes the product used in bad and explosion-proof environment for a long time, and its coil, contact and other internal components are not oxidized.
At the same time, the product has the advantages of low energy consumption, little heating, long life, small volume, light weight and so on.
2. control high voltage and large current
3. energy saving
Some specifications of the products are used for energy saving.
4. smaller arcs are more effective and safer when the product is used
Using an inert gas seal, the product has no arc between the contacts when the product moves, and the magnetic blow out arc is used.
All is guaranteed.
5. high stability
The internal mechanism and structure are completely sealed in the inert gas and are not disturbed by external factors, and the contact resistance is stable for a long time.
6. a wide range of applications
The use includes: DC power control, battery switch control, circuit safety protection and so on.

 

Coil parameters

Rated working voltage (Us)

12VDC 

24VDC

Working voltage range (20)

(85%—110%)Us 

(85%—110%)Us

Absorption voltage (20)

75% Us Max

75% Us Max

Keep the voltage (20)

85% Us Min 

85% Us Min

Release voltage (20)

10% Us Min 

10% Us Min

Coil resistance (20 degrees )

45Ω±5% 

          167Ω±5%

Coil power (20 degrees )

3.2W 

              3.2W

Coil polarity

nothing  nothing

 

Main contact parameters

Maximum persistent overcurrent

(6 mm Min cross-sectional area of external connecting wires)

30A

Contact voltage

12-900VDC

Rated control capacity

20A 450VDC

Short-term current tolerance

90A 30S

150A 10S

 Contact suction time

25ms  max

Contact release time

10ms  max

Maximum disconnecting current (more than once)

300A 350V

Contact Form

A group of often open

Contact polarity

Polar or infinity

Contact resistance

≤2mΩ

Life

Mechanical life

1X10second

Electrical life (L/R ≤1ms)

1X104second

Dielectric property parameters

Contact between points

2500V AC/ 60 Sec/1mA

Between Contacts and coils

2500V AC/ 60 Sec/1mA

Mechanical properties

Impact

20G peak, 11ms 1/2 sine wave (coil electrified)

Vibration

20G peak, 80 ~ 2000Hz, sine wave

Usage environment

Ambient temperature

-40℃~+85

Humidity

5%~85% RH.

Altitude

<4000m

weight:           110g

 

 

Matters needing attention:
1. when installing the contactor, the washer should be used to prevent the screw from loosening.
2. the products with the polarity should be connected according to the marking on the end of the product. The position of the non polar products is not required.
3. do not install this product in a strong magnetic field (near a transformer or magnet) or close to a thermal radiation source.
4. this product has its own electrical life, do not use in excess of its switching capacity and life parameters.
5. ensure the use of the environment temperature in the range of -40~+85 C, high temperature is easy to accelerate the diffusion of internal inert gas, avoid storage.
Use the product in a high temperature environment.
When 6. resistance load is used, it is used in accordance with the rated parameters of the main contact. If the connection of the inductive load (L load) is L/R > 1ms, this sense should be used.
A shunt surge current protection device with a parallel load.
When 7. wiring is installed, attention should be paid to ensuring the cleanliness of the main elicited end and connection head, and tighten to avoid excessive heating at the lead end connection.

You May Like
Not exactly what you want? 1 request, multiple quotations Get Quotations Now >>
You May Like