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Range
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ComPact
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Product name
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ComPact NSXm
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Range of product
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ComPact NSXm
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Device short name
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NSXm 125B
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Product or component type
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Circuit breaker
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Device application
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Distribution
Protection
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Number of poles
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4P
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Protected poles description
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3D
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Neutral position
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Left
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[In] rated current
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125 A at 40 °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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50 kA Icu at 220...240 V AC 50/60 Hz conforming to IEC 60947-2
25 kA Icu at 380...415 V AC 50/60 Hz conforming to IEC 60947-2
20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2
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Performance level
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B 25 kA 415 V AC
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Trip unit name
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TM-D
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Trip unit technology
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Thermal-magnetic
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Trip unit protection functions
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LI
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Control type
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Toggle
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Circuit breaker mounting mode
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By screws
Clip-on
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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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50 kA at 220...240 V AC 50/60 Hz conforming to IEC 60947-2
25 kA at 380...415 V AC 50/60 Hz conforming to IEC 60947-2
20 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2
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Mechanical durability
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20000 cycles
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Electrical durability
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10000 cycles at 440 V In
20000 cycles at 440 V In/2
5000 cycles at 690 V In
10000 cycles at 690 V In/2
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Mounting support
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Plate
DIN rail
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Connection terminals
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1 Everlink lug wire size 2.5…70 mm², flexible copper
1 Everlink lug wire size 2.5…95 mm², rigid or stranded copper
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Connection pitch
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35 mm with spreaders
27 mm without spreaders
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9 mm pitches
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12 module
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Protection type
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L : for overload protection (thermal)
I : for short-circuit protection (magnetic)
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Trip unit rating
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125 A at 40 °C
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Long-time pick-up adjustment type Ir (thermal protection)
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Adjustable
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[Ir] long-time protection pick-up adjustment range
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0.7...1 x In
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Long-time protection delay adjustment type tr
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Fixed
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[Im] magnetic protection pick-up range
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1250 A
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Earth-leakage protection
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Without
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Number of slots for electrical auxiliaries
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1 slot(s) for auxiliary switch OF
1 slot(s) for alarm switch SD
1 slot(s) for voltage release MN or MX
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Width (W)
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108 mm
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Height (H)
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137 mm
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Depth (D)
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80 mm
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Product weight
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1.42 kg
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Colour
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Grey (RAL 7016)
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SCIP Number
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266401fd-2db7-458f-b0c1-34d573cc83b3
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REACh Regulation
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 REACh Declaration
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EU RoHS Directive
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Compliant with Exemptions
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Mercury free
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Yes
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RoHS exemption information
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Yes
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China RoHS Regulation
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China RoHS declaration
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Environmental Disclosure
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Product Environmental Profile
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Circularity Profile
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No need of specific recycling operations
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WEEE
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The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
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California proposition 65
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WARNING: This product can expose you to chemicals including: DINP, which is known to the State of California to cause cancer, and DIDP, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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Carbon footprint (kg CO2 eq, Total Life cycle)
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397
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