QIHANG 4000 Series 2500A Universal Circuit Breaker (400V / 50Hz)
The QIHANG 4000 Series 2500A Universal Circuit Breaker is built for main low-voltage distribution systems where high current capacity and dependable protection are essential. With a rated current of 2500A and operating voltage of 400V, it is well-suited for main switchboards in factories, commercial complexes, infrastructure projects, and heavy-duty distribution panels.
Equipped with LSIG protection (long-time, short-time, instantaneous, and ground fault), this breaker supports accurate fault protection and better coordination within complex electrical networks. The high breaking capacity (100kA) helps ensure safe interruption performance under severe fault conditions, improving system safety and reducing downtime risks in critical power applications.
Key Features
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Series: 4000 Series
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Rated current: 2500A
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Rated voltage / frequency: 400V / 50Hz
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Protection: LSIG
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Breaking capacity: 100kA
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Designed for main distribution and high-load applications
Typical Applications
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Main distribution boards and switchboards
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Industrial plants and manufacturing facilities
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Commercial buildings and large load centers
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Infrastructure and EPC power projects
Product Attributes
| Breaking Capacity | 100kA | Rated Voltage | 400V |
|---|---|---|---|
| Working Current | 2500A | Application | Industrial, Protection, Households |
| Protection Functions | Li / LSI / LSIG | Rated Frequency (Hz) | 50Hz |
| Place of Origin | Zhejiang, China | Model Number | QHW1 4000 / 3P 2500A |
| Brand Name | QIHANG | Support | ODM / OEM |
| Poles | 3P | Product Name | Universal Circuit Breaker |
Packaging & Delivery
| Selling Units | Single item | Single Package Size | 100 × 100 × 100 cm |
|---|---|---|---|
| Single Gross Weight | 130.000 kg | ||









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