الوصف
MCB 3P 6kA B-20A 3M • MT320A
EAN: 3250614507243
Packaging: 4 Pieces
Technical properties
Electric current
Rated current: 20 A
Rated current -15°C: 23.90 A
Rated current -10°C: 23.50 A
Rated current -5°C: 23.10 A
Rated current at 0°C: 22.70 A
Rated current 5°C: 22.20 A
Rated current 10°C: 21.80 A
Rated current 15°C: 21.40 A
Rated current at 20°C: 20.90 A
Rated current 25°C: 20.50 A
Rated current 30°C: 20 A
Rated current 35°C: 19.50 A
Rated current at 40°C: 19 A
Rated current at 45°C: 18.50 A
Rated current at 50°C: 18 A
Rated current 55°C: 17.50 A
Rated current 60°C: 16.90 A
Rated current 65°C: 16.40 A
Rated current 70°C: 15.90 A
Architecture
Type of pole: 3P
Curve: B
Capacity
Number of modules: 3
Main electrical attributes
Rated short-circuit breaking capacity Icn AC according to IEC 60898-1: 6 kA
Installation, mounting
Nominal tightening torque top terminal: 2.80 – 2.80 Nm
Nominal tightening torque down terminal: 2.80 – 2.80 Nm
Nominal tightening torque: 2.80 – 2.80 Nm
Type of bottom connection for modular devices: biconnect
Type of top connection for modular devices: Screw terminal
360° mounting position possible: Yes
Voltage
Rated operational voltage Ue: 230 – 400 V
Rated insulation voltage Ui: 500 V
Rated impulse withstand voltage Uimp: 4,000 V
Frequency
Frequency: 50 – 60 Hz
Connection
Cross-section of input and output with screws, for massive conductors: 1 – 35 mm²
Cross-section of input and output with screws, for flexible conductors: 1 – 25 mm²
Cross-section of input with screws, for flexible conductors: 1 – 25 mm²
Cross-section of input with screws, for massive conductors: 1 – 35 mm²
Cross-section flexible conductor: 1 – 25 mm²
Cross-section rigid conductor: 1 – 35 mm²
Safety
Ingress Protection (IP) class: IP20
Use conditions
Degree of pollution according to IEC 60664 / IEC 60947-2: 2
Class of energy limitation I²t: 3
Air humidity protection: For all climates
Operating temperature: -25 – 70 °C
Power
Total power loss under IN: 8.70 W
Connectivity
Type of connection: Screw terminal
Top connection alignment for modular devices: Aligned terminal
Down connection alignment for modular devices: Aligned terminal
Dimensions
Height: 8.3 cm
Width: 5.25 cm
Depth: 7 cm














