SZJB300A-D DC contactor

This product have one normally close contact, for electric vehicles, telecommunication equipment, engineering machinery, car batteries, electric forklift trucks, trains, ships, electronic control systems such as uninterruptible power supply.

Category:

FEATURES:

 

Suitable for electric forklift, battery cars, tractors, excavators, brick machine, cleaning vehicles, automotive air-conditioning, communication power supply, uninterruptible power supply, power supply switches such as electroplating electronic control system control circuit, has the advantages of small volume, large load capacity, long service life, easy maintenance and other characteristics, welcomed by users. The products in accordance with the standard of the JB2286-78, JB3974-85, YD / 585-92, YD / T512-92 requirements; the plant and related test unit test, meet the standard requirements, the user use for many years, the maximum to meet user needs, quality and reliable.

 

MODEL IMPLICATION:

 

USES:

This product have one normally close contact, for electric vehicles, telecommunication equipment, engineering machinery, car batteries, electric forklift trucks, trains, ships, electronic control systems such as uninterruptible power supply.

 

TECHNICAL PARAMETERS:  (Version 1.81)

 SAYOON Product Type

 SZJB300A-D

 Contact form  1 NC
 Coil Rated voltage(DC V)  6V,12V,24V,36V,48V,60V,72V,84V,120V,150V,220V etc.
 Contact voltage(DC V)  ≤80V
 Rated load current of contact 48V circuit (DC-1)  300A
 Typical voltage drop across contacts per 100A  ≯80mV
 the cooling pull-in voltage at (20±5)℃ (V)  ≯70%
 the cooling drop-out voltage at (20±5)℃(V)  ≯35%,≮5%
 Working voltage range of 40 degrees celsius coil  0.8-1.2Us
 Drop-out time(n/o contacts to open)  10ms
 Pull-in time (n/o contacts to close)  20ms
 connect the maximum contact bounce time  10ms
 Disconnect the maximum contact bounce time  3ms
 Insulation resistance  20MΩ
 Electric strength to resist  50Hz/60Hz 1000VAC 1minute
 Typical fault currents which can be ruptured  1000A/5ms at 48V/DC
 Coil power (W)  7-15
 Temperature rise of coil (K)  ≤80
 Temperature rise on outgoing terminal (K)  ≤65
 Electric life  20000 times
 Mechanical life  300 thousand times
 Work specification  Continuous
 Contact material  Ag alloy
 Load terminal type  M8 Rose
 Coil terminal type  M4 Rose
 Auxiliary contact rated load (choose)  2A/48VDC, 5A/24VDC,1NO 1NC
 Testing organization certification  CCC,CE,FCC,RoHS

Note:As regarding to the different using environments of customers which requires different focus of the functions,and in order to improve the comprehensive properties of our products,sayoon may adjust the coil parameters,temperature rise and so on. The above parameters are for reference only, For details, please refer to the guidelines for selection and use of the SAYOON DC contactor.

 

LOAD CHARACTERISTIC CURVE:

 

INSTALLATION DIAGRAM:

 

WIRING DIAGRAM:

COIL TEMPERATURE CURVE:

 

 

MECHANICAL ABILITY and USE of the ENVIRONMENT:

 Contact lead M8 tightening torque(N.m)  ≯9.0 appropriate
 Coil lead M4 tightening torque (N.m)  ≯1.2 appropriate
 Ambient temperature  -25~+70℃
 Relative humidity  +20℃ 98%
 Vibration freq. atthe fixed position  3G, 1~50Hz amplitude 0.5mm
 concussion  (60~100) time/minute、Acceleration≤4g
 Altitude  2000米
 Installation direction  Random
 International Protection  IP40 (According IEC60947)

 

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