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Range
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ComPacT new generation
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Range of product
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ComPacT NSX100...250 new generation
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Product or component type
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Trip unit
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Trip unit name
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MicroLogic 4.2
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Trip unit technology
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Electronic
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Range compatibility
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ComPacT new generation NSX160
ComPacT new generation NSX250
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Device application
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Distribution
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Poles description
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3P
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Protected poles description
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3D
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Trip unit protection functions
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LSoIR
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Protection type
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L : for overload protection (long time)
So : for short time short-circuit protection with fixed delay
I : for instantaneous short-circuit protection
R : for earth-leakage protection
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Trip unit rating
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160 A at 40 °C
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[Ue] rated operational voltage
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440 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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Circuit breaker mounting mode
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Fixed
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Long-time pick-up adjustment type Ir (thermal protection)
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Adjustable 9 settings
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[Ir] long-time protection pick-up adjustment range
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63...160 A
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Long-time protection delay adjustment type tr
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Fixed
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[tr] long-time protection delay adjustment range
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11 s at 7.2 x Ir
16 s at 6 x Ir
400 s at 1.5 x Ir
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Thermal memory
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20 minutes before and after tripping
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Short-time protection pick-up adjustment type Isd
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Adjustable
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[Isd] Short-time protection pick-up adjustment range
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1.5...10 x Ir
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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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2400 A
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Earth-leakage protection
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Integrated
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Earth-leakage protection class
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Class A
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Earth-leakage protection sensitity adjustment type IΔn
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Adjustable
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[IΔn] earth-leakage protection sensitivity adjustment range
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0.03 A
0.1 A
0.3 A
0.5 A
1 A
3 A
5 A
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Earth-leakage protection specific mode
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OFF using the IΔn rotary switch
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Earth-leakage protection time delay adjustement type Δt
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Adjustable
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[Δt] Earth-leakage protection time delay adjustment range
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0 ms
60 ms
150 ms
500 ms
1 s
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Zone selective interlocking ZSI
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Without
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Local signalling
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Flashing LED (green) for ready to operate
LED 105 % Ir (red) for overload
LED 90 % Ir (orange) for overload
Color indicator (yellow) for residual current
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REACh Declaration