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NA8 Air Circuit Breaker

Circuit Breaker · Electrical Components & Switchgear

Class-certified type (DNV register) · technical data sheet not yet verified
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Download NA8 Air Circuit Breaker datasheet, manual, and related Main Power Distribution product catalogs from CHINT Global

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Rated operational voltage Ue380/400/415/440、690、800、1000/1150V🔖
Rated insulation voltage Ui1000、1250、1500 V🔖
Rated impulse withstand voltage Uimp12 kV🔖
Rated frequency50/60 Hz🔖
Breaking time20 ~ 30 ms🔖
Closing time30 ~ 40 ms🔖
Pdf standardHorizontal connection
pdf_Undervoltage time delay releaseUVTD
pdf_Undervoltage instantaneous releaseUVT
pdf_a.By power supply CTthis mode can satisfy protections upon overload or short circuit at CB load side;
Pdf connectionupper and lower buses of phase N and phase B to the same as those of phase A
📄
Download datasheet (PDF) (4717 KB)
Manufacturer documentation

Images from manufacturer documentation.

Photos, drawings and page previews from this model’s datasheet or catalog.

Chint NA8 Air Circuit Breaker – Photo (Chint datasheet S. 1)
Photo · Chint datasheet · S. 1
Chint NA8 Air Circuit Breaker – Photo (Chint datasheet S. 1)
Photo · Chint datasheet · S. 1
Chint NA8 Air Circuit Breaker – Photo (Chint datasheet S. 2)
Photo · Chint datasheet · S. 2
Chint NA8 Air Circuit Breaker – Drawing (Chint datasheet S. 2)
Drawing · Chint datasheet · S. 2
Chint NA8 Air Circuit Breaker – Drawing (Chint datasheet S. 3)
Drawing · Chint datasheet · S. 3
Chint NA8 Air Circuit Breaker – Drawing (Chint datasheet S. 4)
Drawing · Chint datasheet · S. 4
Chint NA8 Air Circuit Breaker – Page preview (Chint datasheet S. 1)
Page preview · Chint datasheet · S. 1
Chint NA8 Air Circuit Breaker – Page preview (Chint datasheet S. 1)
Page preview · Chint datasheet · S. 1
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