The SIEMENS 3WT8406-4D Air Circuit Breaker is a heavy-duty 4000A, 4-pole ACB built for superior performance in demanding power distribution systems. With a high 66kA breaking capacity and integrated LSI protection, this drawout-type breaker ensures maximum safety, flexibility, and reliability in industrial and large commercial installations.
Key Features:
Rated Current: 4000A
Configuration: 4 Pole (4P)
Breaking Capacity: 66kA
Protection Function: LSI (Long-Time, Short-Time, Instantaneous)
Mounting Type: Drawout
Type: Air Circuit Breaker (ACB)
Brand: Siemens – Global Standard in Electrical Engineering