SIEMENS AIR CIRCUIT BREAKER 3WT8121-3F, 1250A, 3P ,66KA , LSI ,FIXED , ACB

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Product Description:

The SIEMENS 3WT8121-3F Air Circuit Breaker provides reliable protection for low-voltage power systems with a rated current of 1250A and a breaking capacity of 66kA. Featuring LSI protection (Long-time, Short-time, Instantaneous) and a 3-pole fixed design, this ACB ensures safe, stable, and efficient power distribution suitable for industrial and commercial applications.


Key Features:

  • Rated Current: 1250A

  • Poles: 3P (Three Pole)

  • Breaking Capacity: 66kA

  • Protection Type: LSI (Long-time, Short-time, Instantaneous)

  • Mounting Type: Fixed

  • Durable construction for long service life

  • High fault interruption capability

  • Complies with IEC safety standards

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