MCB 3P 6kA B-40A 3M MT340A
EAN-Nr.
3250614507274
Packaging
4 Pieces
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Complete your system
Optional accessories
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Mechanic accessories for low-voltage components 1 products available -
Undervoltage and overvoltage release 1 products available
Complete your system
Technical characteristics
Electric current
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Rated current40 A
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Rated short-circuit breaking capacity Icn under 230 V AC according to IEC 60898-16 kA
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Rated ultimate short-circuit breaking capacity Icu under 400 V AC IEC 60947-26 kA
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Rated current -15°C48,70 A
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Rated current -10°C47,80 A
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Rated current -5°C46,90 A
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Rated current at 0°C46 A
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Rated current 5°C45 A
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Rated current 10°C44,10 A
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Rated current 15°C43,10 A
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Rated current at 20°C42,10 A
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Rated current 25°C41,10 A
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Rated current 30°C40 A
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Rated current 35°C38,90 A
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Rated current at 40°C37,80 A
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Rated current at 45°C36,60 A
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Rated current at 50°C35,40 A
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Rated current 55°C34,20 A
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Rated current 60°C32,90 A
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Rated current 65°C31,80 A
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Rated current 70°C30,60 A
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 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 Uimp4000 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
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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Total power loss under IN18,70 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 MT340A
MCB 3P 6kA B-40A 3M
PDF -
Catalogue
Technical specification 24/25
Catalogue en-GB 2025-12-16
PDF3,27 MB -
Declaration of conformity
EU Declaration of Conformity
Declaration of conformity en-GB 2025-12-08
PDF808,67 kB
UKCA Declaration of Conformity
Declaration of conformity en-GB 2025-11-13
PDF813,16 kB
More documentation