Malaysia 
Air Circuit Breaker HWS2 66kA 1250A 3P Drawout LSI HWS2E312D1AE
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Technical characteristics
Electric current
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Rated current IN1250 A
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Rated ultimate short-circuit breaking capacity Icu under 400 V AC IEC 60947-266 kA
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Rated service breaking capacity Ics under 230 V AC according to IEC 60947-266 kA
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Rated service breaking capacity Ics under 400 V AC according to IEC 60947-266 kA
Endurance
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Electric endurance in number of cycles8000
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Number of mechanical operations12000
Voltage
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Rated insulation voltage Ui1000 V
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Rated impulse withstand voltage Uimp12 kV
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Type voltage supplyAC
Resistance
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Internal resistance18,3 µΩ
Architecture
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Number of poles3
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Number of protected poles3
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Device construction typeDrawout
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Type of pole3P
Tripping
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Time of response when closing40 ms
Power
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Power dissipation at IN100 W
Environmental value
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Certifications and documents
Downloads
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Product datasheet
Hager Product data sheet HWS2E312D1AE
Air Circuit Breaker HWS2 66kA 1250A 3P Drawout LSI
PDF -
Installation manual
Installation manual International 2025-04-25
PDF16,07 MB -
Manual
Installation and operating manual
HWS2 / HWS4 Air circuit breakers 630 A to 4000 A
PDF86,00 MB
Technical catalogue
HWS2 / HWS4 Air circuit breakers 630 A to 4000 A
PDF61,28 MB -
Declaration of conformity
Declaration of conformity en-US 2026-07-15
PDF893,41 kB
More documentation
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