The Hager MCB 3P D-20A 10kA/15kA 3-module circuit breaker protects three-phase circuits against overloads and short-circuits. Its D-curve suits high inrush loads (motors). Rated 400 V AC, Icn 10 kA (IEC 60898-1) and Icu 15 kA (IEC 60947-2), Uimp 6 kV. Screw/biconnect terminals for 1-35 mm², IP20, 50-60 Hz. Durable 20,000 mechanical/4,000 electrical cycles, -25 to 70 °C, 360° mounting.
EAN
3250614619250
Packaging
4
MCB 2P C16 10kA Icn, 15kA Icu 400V, 2M NDN320A
Complete your system
Optional accessories
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Terminal cover 1 products available -
AOB type A-HI 1 products available -
Modular phase busbar 3 products available -
AOB type AC 3 products available -
Protective cap/strip for phase busbar 1 products available
Complete your system
Technical properties
Electric current
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Rated current20 A
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Rated ultimate short-circuit breaking capacity Icu AC IEC 60947-215 kA
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Rated ultimate short-circuit breaking capacity Icu under 400 V AC IEC 60947-215 kA
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Rated current -15°C23.98 A
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Rated current -10°C23.57 A
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Rated current -5°C23.16 A
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Rated current at 0°C22.73 A
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Rated current 5°C22.30 A
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Rated current 10°C21.86 A
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Rated current 15°C21.41 A
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Rated current at 20°C20.95 A
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Rated current 25°C20.48 A
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Rated current 30°C20 A
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Rated current 35°C19.48 A
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Rated current at 40°C18.94 A
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Rated current at 45°C18.39 A
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Rated current at 50°C17.81 A
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Rated current 55°C17.22 A
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Rated current 60°C16.61 A
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Rated current 65°C15.98 A
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Rated current 70°C15.32 A
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Rated service breaking capacity Ics AC according to IEC 60898-17.50 kA
Architecture
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Type of pole3P
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CurveD
Capacity
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Number of modules3
Main electrical attributes
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Rated short-circuit breaking capacity Icn AC according to IEC 60898-110 kA
Installation, mounting
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Nominal tightening torque top terminal2.80 - 2.80 Nm
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Nominal tightening torque down terminal2.80 - 2.80 Nm
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Nominal tightening torque2.80 - 2.80 Nm
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Type of bottom connection for modular devicesbiconnect
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Type of top connection for modular devicesScrew terminal
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360° mounting position possibleYes
Voltage
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Rated operational voltage Ue400 - 400 V
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Type voltage supplyAC
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Rated insulation voltage Ui500 V
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Rated impulse withstand voltage Uimp6000 V
Frequency
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Frequency50 - 60 Hz
Connection
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Cross-section of input and output with screws, for massive conductors1 - 35 mm²
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Cross-section of input and output with screws, for flexible conductors1 - 25 mm²
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Cross-section of input with screws, for flexible conductors1 - 25 mm²
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Cross-section of input with screws, for massive conductors1 - 35 mm²
Safety
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Ingress Protection (IP) classIP20
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Grid distance60 mm
Use conditions
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Degree of pollution according to IEC 60664 / IEC 60947-22
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Operating temperature-25 - 70 °C
Power
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Total power loss under IN8.04 W
Connectivity
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Type of connectionScrew terminal
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Top connection alignment for modular devicesAligned terminal
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Down connection alignment for modular devicesAligned terminal
Dimensions
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Height83 mm
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Width52.50 mm
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Depth70 mm
Environmental value
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Certifications and documents
Downloads
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Product datasheet
Hager Product data sheet NDN320A
MCB 3P 10kA/15kA D-20A 3M
PDF -
Declaration of conformity
UKCA Declaration of Conformity
Declaration of conformity en-GB 2024-10-02
PDF653,93 kB
More documentation