Universal Circuit Breaker QHW1-4000/3P
The Smart 4000A Universal Circuit Breaker is engineered for large-scale power distribution systems requiring advanced protection, operational reliability, and high current capacity. Designed for rated currents up to 4000A, this model is ideal for industrial facilities, commercial complexes, infrastructure projects, and utility applications.
Built for low-voltage distribution systems operating at 400V, the breaker provides dependable protection against overload, short circuit, and system faults. Its robust arc control structure and precision protection mechanism ensure stable operation under heavy load conditions.
The smart protection system enhances monitoring accuracy and coordination within complex electrical networks, helping reduce downtime and improve overall system safety. Manufactured with high-quality insulating materials and durable metal components, the unit offers long service life and consistent performance in demanding environments.
Key Features
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Rated current up to 4000A
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Rated voltage: 400V
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High breaking capacity for industrial applications
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Advanced protection and monitoring capability
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Designed for main switchboards and distribution panels
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Durable construction for long-term reliability
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Suitable for industrial and infrastructure projects
Typical Applications
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Main distribution boards
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Industrial manufacturing plants
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Commercial and high-rise buildings
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Generator and transformer protection
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EPC and utility power projects
Product Attributes
| Breaking Capacity | 100kA | Rated Voltage | 400V |
|---|---|---|---|
| Working Current | 4000A | Application | Industrial, Protection, Households |
| Protection Functions | Li / LSI / LSIG | Rated Frequency (Hz) | 50Hz |
| Place of Origin | Zhejiang, China | Model Number | QHW1-4000/3P |
| Brand Name | QIHANG | Installation Method | Drawer type |
| Quality | Insulating materials and metal parts | Mechanical Life | 1500 times |
| Electrical Life | 500 times | Support | ODM / OEM |
Packaging & Delivery
| Selling Units | Single item | Single Package Size | 100 × 100 × 100 cm |
|---|---|---|---|
| Single Gross Weight | 130.000 kg | ||








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