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EBS204 Earth Leakage Protection Circuit Breaker 250A 4 Poles ELCB MCCB

EBS250 Series Earth Leakage Circuit Breaker

The EBS250 Series Residual Current Circuit Breaker is a high-tech product designed for the 21st century. It features an advanced design and high-performance specifications, with an aesthetically pleasing, compact form factor for easy installation.

This product complies with international standards IEC60947-2, GB/T14048.2, and their appendix B for circuit breakers with residual current protection, as well as IEC755 and GB/T6829 for general requirements of residual current operating protectors.

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Key Features

  • Standardized Dimensions: Features identical external and installation dimensions as the ABS203 and ABS204 models, ensuring easy interchangeability and replacement for users.
  • Universal Accessories: Shares compatibility with accessories for the ABS203 and ABS204, simplifying procurement, inventory management, and maintenance.
  • Easy & Safe Accessory Installation: Accessories can be installed conveniently by simply removing the front cover, eliminating the need to open the entire circuit breaker. This design prevents safety risks associated with foreign objects falling into the internal components during installation.
  • Adjustable Protection: Offers multi-level adjustable residual current sensitivity and tripping time, allowing users to customize protection settings based on their specific application needs.

Applications

  • Commercial & Public Buildings

Provides safe power distribution for high-density loads like HVAC, lighting, and elevators in shopping malls, office buildings, and hotels. Offers critical protection in damp areas such as kitchens and laundries.

  • Industrial & Manufacturing Facilities

Safeguards production line motors, machinery, and cold chain equipment in factories, workshops, and warehouses. Prevents unexpected downtime and leakage risks caused by insulation damage.

  • Residential & Civil Facilities

Acts as main or zonal protection for residential complexes, schools, and hospitals. Ensures daily electrical safety and reliable operation for medical and laboratory precision equipment.

  • Critical Infrastructure

Deployed in data centers, transportation hubs, and water supply/drainage facilities. Protects server power lines, critical lighting systems, and pump motors to prevent data loss and ensure continuous public service operation.

Main Technical Parameter
Frame Class Rated Current Inm (A) 250 250
Model Type EBS203 EBS204
Rated Current (A) 100, 125, 150, 175, 200, 225, 250 100, 125, 150, 175, 200, 225, 250
Poles 3 4
Rated Insulation Voltage AC 690V 50Hz
Rated Working Voltage AC 415V 50Hz
Arcing Distance (mm) ≤50
Rated Ultimate/Service Breaking Capacity (Icu/Ics) Icu: 25kA, Ics: 50% Icu
Rated Residual Operating Current IΔn (mA) 100/200/500mA Adjustable
Residual Current Operating Time ≤0.1s
Rated Residual Non-Operating Current IΔn (mA) 1/2 IΔn
Rated Residual Short-Circuit Making & Breaking Capacity IΔm (kA) 1/4 Icu
Operation Characteristic (times) NO: 1000

OFF: 7000

NO: 1000

OFF: 7000

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