Ratings & Specifications Operating Environment Product Solutions External Dimensions

Item Parameter

Rated voltage 12 kV

Power frequency withstand voltage 42/48 kA

Impulse withstand voltage 75/85 kV

Rated current 630 A

Rated short circuit breaking current 20 kA

Rated short circuit making current 50 kA

Rated short time withstand current 20/4 kA/s

Mechanical life Circuit breaker 10000 times / Isolating 5000 times / Earthing 5000 times

Item Parameter

Ambient temperatureMaximum temperature +40℃；
Maximum temperature (24h average) +35℃；
Minimum temperature -45℃；
Comply with Mining Electrical Apparatus for Non-hazardous Area

HumidityMaximum average relative humidity (24 hours ≤ 95%; monthly ≤ 90%)

IACAFLR 20kA 1s

Service continuity categoryLSC 2A

Cable bushing standardDIN47636T and T2/EDF HN 525-61

Altitude≤ 2000m (under standard inflation pressure)

Immersion test0.3 bar pressure underwater 24h

Protection degreeTank IP67
Explosion-proof enclosure IP54

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