QZJB100A Normally Closed DC Contactor

QZJB100A Normally Closed DC Contactor

Discover the QZJB100A Normally Closed DC Contactor for reliable performance and safety in your electrical applications. Ideal for seamless operation and efficiency!
Overview

FEATURES

 In addition to safety, normally closed DC contactors provide robust fault protection. These contactors can quickly cut off the power supply when abnormal conditions such as short circuit or overload occur. This rapid response is critical to protecting equipment and personnel from potential harm. In safety systems and emergency stop applications, the ability to quickly disconnect power can prevent catastrophic failure and ensure operators can effectively respond to emergencies. Integrating a normally closed DC contactor into a safety protocol increases the overall reliability of the electrical system.

SAYOON MODEL IMPLICATION

QZJB

100A

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Product type

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Rated current

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

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Mounting bracket type: M-Horizontal (default)

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Other function codes

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Other special functions: V-With capacitive load

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

Uses

This product have one normally close contact, for 5G cabinet, telecommunication equipment, engineering machinery, car batteries, electric forklift trucks, trains, ships, electronic control systems such as uninterruptible power supply.

Technical Parameters:  (Version 1.26)

 SAYOON Product Type

 QZJB100A

 Contact form  1 NC
 Coil Rated voltage (DC V)  6V,12V,24V,36V,48V,60V,72V,96V etc.
 Contact voltage (DC V)  ≤150V
 Rated load current of contact 48V circuit (A)  100A
 Rate load current of contact circuit  ≯80mV
 The cooling pull-in voltage at (20±5)℃ (V)  ≯70%
 The cooling drop-out voltage at (20±5)℃ (V)  ≯50%,≮5%
 Working voltage range of 40℃ coil  0.8-1.2Us
 Drop-out time (n/o contacts to open)  12ms
 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  800A/5ms at 48V DC
 Coil power (W)  Start: 35-65, Keep: 2-5
 Temperature rise of coil (K)  ≤40
 Temperature rise on outgoing terminal (K)  ≤65
 Electrical life  20,000 times
 Mechanical life  300,000 times
 Work specification  Continuous
 Contact material  Ag alloy
 Load terminal type  M6 Screw
 Coil terminal type  M3 Screw

 

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

  • SEV100AD HV DC Contactor detial (4)
  • SEV100AD HV DC Contactor detial (3)

Installation Diagram

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Wiring Diagram

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Temperature Curve

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Mechanical Ability And Use Of The Environment

 Contact lead M6 tightening torque (N.m)  ≯4.5 appropriate
 Coil lead M3 tightening 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

 QZJB100A

 Mounting bracket type  M Horizontal (default)

 

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 QZJB100A/24V 100pcs, indicating the load rated current 100A, 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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Téléphone
+86 130 5791 2357
Courriel
sayoon@sayoon.com