SIEMENS 3WN6 SERIES AIR CIRCUIT BREAKER

The Siemens 3WN6 series air circuit breaker delivers high-performance protection and reliability for electrical distribution systems. Engineered for demanding industrial environments, this breaker ensures safe power control and fault interruption.

Manufacturer: Siemens
Type: Air Circuit Breaker
Series: 3WN6
Model: 3WN6671-0KB56-1HA2
Alternative Model: 3WN6 681-0KB56-1HA2-Z
Size: 2
Number of Poles: 3

Technical Information

• Rated Current (In): 2500 A
• Rated Surge Voltage Resistance (Uimp): 8 kV
• Rated Operating Voltage (Ue): 690 V AC
• Rated Breaking Capacity (Icu):
  • 75 kA at 500 V AC
  • 50 kA at 690 V AC
• Operating Frequency: 50 / 60 Hz
• Mounting: Fixed
• Standards: IEC 947-2 / EN 60947-2 / VDE 0660
• Protection Class: IP20
• Dimensions (W x D x H): 420 x 410 x 485 mm
• Ambient Operation Temperature: -20 / 70 °C