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Range
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ComPact
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Product name
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ComPact NSX
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Range of product
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ComPact NSX400...630
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Device short name
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NSX400N
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Product or component type
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Circuit breaker
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Device application
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Motor
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Number of poles
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3P
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Protected poles description
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3t
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[In] rated current
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320 A at 65 °C
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[Ue] rated operational voltage
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690 V AC 50/60 Hz
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Network type
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AC
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Network frequency
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50/60 Hz
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Suitability for isolation
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Yes conforming to EN/IEC 60947-2
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Utilisation category
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Category A
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[Icu] rated ultimate short-circuit breaking capacity
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85 kA at 240 V AC 50/60 Hz conforming to UL 508
22 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2
85 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
10 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
30 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2
20 kA at 600 V AC 50/60 Hz conforming to UL 508
50 kA at 480 V AC 50/60 Hz conforming to UL 508
50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
42 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
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Performance level
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N 50 kA 415 V AC
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Trip unit name
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MicroLogic 1.3 M
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Trip unit technology
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Electronic
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Trip unit protection functions
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I
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Control type
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Toggle
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Circuit breaker mounting mode
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Fixed
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[Ui] rated insulation voltage
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800 V AC 50/60 Hz
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[Uimp] rated impulse withstand voltage
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8 kV
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[Ics] rated service short-circuit breaking capacity
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11 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2
85 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2
10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
30 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2
42 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2
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Mechanical durability
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15000 cycles
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Electrical durability
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3000 cycles at 690 V In
6000 cycles at 690 V In/2
6000 cycles at 440 V In
12000 cycles at 440 V In/2
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Mounting support
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Backplate
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Upside connection
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Front
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Downside connection
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Front
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Connection pitch
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45 mm
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Protection type
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I : for short-circuit protection (magnetic)
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Trip unit rating
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320 A at 65 °C
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Short-time protection pick-up adjustment type Isd
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Adjustable 9 settings
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[Isd] Short-time protection pick-up adjustment range
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3840 A
3200 A
2880 A
2560 A
1600 A
4160 A
3520 A
1920 A
2440 A
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Short-time protection delay adjustment type tsd
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Fixed
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Instantaneous protection pick-up adjustment type Ii
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Fixed
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[Ii] instantaneous protection pick-up adjustment range
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4800 A
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Earth-leakage protection
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Without
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Zone selective interlocking ZSI
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Without
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Number of slots for electrical auxiliaries
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6 slot(s)
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Local signalling
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Flashing LED (green) for ready to operate
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Width (W)
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140 mm
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Height (H)
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255 mm
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Depth (D)
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110 mm
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Net weight
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6.05 kg
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REACh Declaration