Ireland 
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3250614507243
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MCB 3P 6kA B-20A 3M MT320A
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Mechanic accessories for low-voltage components 1 product.page.accessories.products-available
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Electric current
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Rated current IN20 A
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Rated short-circuit breaking capacity Icn under 230 V AC according to IEC 60898-110 kA
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Rated current at -15°C23.91 A
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Rated current at -10°C23.47 A
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Rated current at -5°C23.04 A
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Rated current at 0°C22.6 A
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Rated current at 5°C22.17 A
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Rated current at 10°C21.74 A
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Rated current at 15°C21.3 A
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Rated current at 20°C20.87 A
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Rated current at 25°C20.43 A
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Rated current at 30°C20 A
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Rated current at 35°C19.5 A
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Rated current at 40°C19.01 A
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Rated current at 45°C18.51 A
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Rated current at 50°C18.02 A
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Rated current at 55°C17.52 A
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Rated current at 60°C17.02 A
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Rated current at 65°C16.53 A
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Rated current at 70°C16.03 A
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Rated short-circuit breaking capacity Icn under 400 V AC according to IEC 60898-16 kA
Architecture
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Type of pole3P
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CurveB
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 60898-16 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 possiblecatalog.pageproduct.attribute_boolean.yes
Voltage
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Rated operational voltage Ue230 - 400 V
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Rated insulation voltage Ui500 V
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Rated impulse withstand voltage Uimp4,000 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
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Cross-section flexible conductor1 - 25 mm²
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Cross-section rigid conductor1 - 35 mm²
Safety
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Ingress Protection (IP) classIP20
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Grid distance35 mm
Use conditions
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Degree of pollution according to IEC 60664 / IEC 60947-22
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Class of energy limitation I²t3
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Air humidity protectionFor all climates
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Operating temperature-25 - 70 °C
Power
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Power dissipation at IN8.70 W
Connectivity
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Top connection alignment for modular devicesAligned terminal
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Down connection alignment for modular devicesAligned terminal
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Type of connectionScrew terminal
Dimensions
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Height83 mm
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Width52.50 mm
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Depth70 mm
Endurance
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Electric endurance in number of cycles4,000
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GeneratedProductDatasheet
Hager Product data sheet MT320A
MCB 3P 6kA B-20A 3M
PDF -
ProductECDeclaration
UKCA Declaration of Conformity
PDF753,40 kB
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