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DC Molded Case Circuit Breaker

  • DC Molded Case Circuit Breaker

Key attributes

Brand HK Electrical
Model NO. DC Molded Case Circuit Breaker
Rated frequency 50/60Hz
Series DCM
Description

Description

DC molded case circuit breakers are suitable for circuits with a rated operating voltage up to DC1500V, a rated insulation voltage of 1500V, a rated impulse withstand voltage of 12kV, and a rated current ranging from 10A to 630A. They can be installed either vertically or horizontally and are resistant to environments containing humid air, salt spray, oil mist, mold, and the like.

Product Features

  • The GYM7DC series DC molded case circuit breaker (hereinafter referred to as "circuit breaker") has a rated operating voltage up to DC1500V, a rated insulation voltage of 1500V, a rated impulse withstand voltage of 12kV, and a rated current ranging from 10A to 630A.

  • This circuit breaker can be installed vertically (i.e., vertical installation) or horizontally (i.e., horizontal installation).

  • This circuit breaker complies with the following standards:

  • IEC 60947-1 and GB/T 14048.1 (General Rules)

  • IEC 60947-2 and GB/T 14048.2 (Low-Voltage Circuit Breakers)

Technical Parameter

Rated Operating Voltage
Ue(V,AC)
DC250V DC1000V DC1500V DC1500V DC1500V
Rated insulation voltage
Ui (V):
1000V 1500V 1600V 1600V 1600V
Rated Shock Withstand Voltage
Uimp (kV):
0.8kV 0.8kV 1.2kV 1.2ky 1.2ky
Rated Operating Short Circuit Segmentation Capability
LCS (%LCU)
DC110V 35kA



DC250V 25kA



DC500V
35kA


DC750V
25kA 85kA 85kA 85kA
DC1000V
15kA 50kA 50kA 50kA
DC1200V

35kA 35kA 35kA
DC1500V

20kA 20kA 20kA
Rated Limit Short-Circuit Segmentation
Capability lcu
(kA):
DC110V 35kA



DC250V 25kA



DC500V
35kA


DC750V
25kA 85kA 85kA 85kA
DC1000V
15kA 50kA 50kA 50kA
DC1200V

35kA 35kA 35kA
DC1500V

20kA 20kA 20kA
Operational
performance
(times)
Electrical examination 5000 times 2000 times DC1000V2000 times
DC1500V1000 times
DC1000V2000 times
DC1500V1000 times
DC1000V2000 times
DC1500V1000 times
Mechanical examination Exemption from maintenance and examination 10,000 times 10,000 times 10,000 times 10,000 times 10,000 times
It can maintain the life of the exam 20,000 times 20,000 times 20,000 times 15,000 times 15,000 times

Normal working conditions

  • For altitudes of 2000m and below, the capacity reduction coefficient at high altitude is shown in the volume reduction coefficient table;

Model Shell Grade Current Rating (A) 50℃ 55℃ 60℃ 65℃ 70℃
GYM7DC-125/2300 250  1  0.95  0.93  0.91  0.88 
GYM7DC-250/2300 250  1  0.95  0.93  0.91  0.88 
GYM7DC-320/2300 250  1  0.95  0.93  0.91  0.88 
GYM7DC-400/2300 400  1  0.93  0.91  0.89  0.85 
GYM7DC-630/2300 630  1  0.92  0.90  0.89  0.83 
  • Storage temperature -40°C ~+75°C;

  • The relative humidity of the air at the installation site should not exceed 50% at the temperature of +40°C, and it can be at lower temperaturesHigher relative humidity, e.g. 90% at 20°C. Measures should be taken against occasional condensation due to temperature changes;

  • TH (three-proof type) meets the requirements of GB/T2423.4 and GB/T2423.18 standards, and can withstand humid air, salt spray,the influence of oil mist and mold;

  • The inclination is ±22.5°;

  • In a medium without explosion hazard, and the medium is not enough to corrode the metal and destroy the insulation of gas and conductive dust Place;

  •  In a place where there is no rain and snow.

Product Dimensions

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Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 1000m² Total staff: 100 Highest Annual Export(usD): 300000000
Services
Business Type: Sales
Main Categories: Power Wire and Cables/Medium and High Voltage Switchgear/Low Voltage Electrical Components/Renewable Energy and EV Charging/Electrical Testing and Metering/Power Generation and Backup Systems/Overhead Line Hardware/Instrument Transformers and Sensors/Transformer and Switchgear Parts/Construction Equipment and Tools/Electrical Manufacturing and Factory Automation/Cable Accessories/Lightning Protection and Electrical Insulation/Substations and E-Houses/Power Electronic Equipment/Electrical Panel and Controlgear/Grid Care and Automation/Power Quality Equipment
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