CZW352A Normally Open DC Contactor

CZW352A Normally Open DC Contactor

Discover the CZW352A Normally Open DC Contactor for reliable power control. Ideal for various applications ensure efficiency and performance in your projects
Overview

SAYOON MODEL IMPLICATION

The high current carrying capacity of normally open DC contactors makes them an ideal choice for many critical applications. In modern industry, the reliability and stability of equipment directly affect production efficiency. Therefore, contactors that can withstand high currents play an important role in motor control, heavy machinery, and power distribution systems. In addition, with the advancement of Industry 4.0 and smart manufacturing, the demand for high-performance control equipment is increasing, and the application prospects of normally open DC contactors are becoming broader.

SAYOON MODEL IMPLICATION

CZW

352A

-S

-K

-2L

-□

/24V

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Product type

2

Rated current: 350A

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Auxiliary switch: None-Without auxiliary switch; S-With auxiliary switch

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Magetic holding structure: K-Two joint magnetic retention (Single coil, Two joint self-locking); 2K-Three joint magnetic retention (Double coil, Three joint self-locking)

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Mounting bracket type: 2L-Two vertical (default); M-Horizontal; X-Oblique; 1LW-One vertical horizontal; 2N-Rear

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Other function codes: l-With suppressor diode; R-With pre-charged resistance; CO-Continuous; IN-Intermittent

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Coil rated voltage: 12V, 24V, 36V, 48V, 60V, 72V etc.

Uses

This product have one normally open 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 1.06)

 SAYOON Product Type

 CZW352A

 Contact form  1 NO
 Coil Rated voltage (DC V)  6V,12V,24V,36V,48V,60V,72V,84V,120V,150V,220V etc.
 Contact voltage (DC V)  ≤60V
 Rated load current of contact 48V circuit (DC-1)  350A
 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℃ coil  0.8-1.2Us
 Drop-out time (n/o contacts to open)  50ms
 Pull-in time (n/o contacts to close)  15ms
 Maximum bounce time for contact connection  10ms
 Maximum bounce time for contact disconnection  3ms
 Insulation resistance  20MΩ
 Electric strength to resist  50Hz/60Hz 1000VAC 1minute
 Typical fault currents which can be ruptured  1200A/5ms at 48V DC
 Coil power (W)  20-35
 Temperature rise of coil (K)  ≤80
 Temperature rise on outgoing terminal (K)  ≤65
 Electrical life  10,000 times
 Mechanical life  300,000 times
 Work specification  Continuous or Intermittent(default)
 Contact material  Ag alloy
 Load terminal type  2-M8 Screw
 Coil terminal type  6.3mm spade terminals
 Auxiliary contact rated load (optional)  2A/48VDC, 5A/24VDC

 

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

  • fzsm-300-20k
  • fzsj-300-1000

Installation Diagram

czw352aczw352a_1czw352a_2czw352a_3

Wiring Diagram

szj-10-d_e

Temperature Curve

xqws-czw100a

Mechanical Ability And Use Of The Environment

 Contact lead M8 tightening torque (N.m)  ≯9.0 appropriate
 Coil lead-out torque (N.m)  ≯0.8 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  2000m
 Installation direction  Random
 International protection  IP40 (According IEC60947)

Order Instruction

 SAYOON Product Type

 CZW352A

 Mounting bracket type  2L Two vertical(default), M Horizontal , 1L One vertical,

 

When ordering, please state the following: name, full model, control coil voltage specification, installation frame type, whether with auxiliary contact, order quantity. For example: DC Contactor CZW352A/24V 100pcs, indicating the load rated current 350A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.

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+86 130 5791 2357
Email
sayoon@sayoon.com