3WT8121-5UN30-0AA1-ZA01

Product ID:222967
Updated: 2026/8/18
Siemens 3WT8121-5UN30-0AA1-ZA01

Key Features

  • 1Deliver 1250A rated current and 66kA breaking capacity for efficient power distribution.
  • 2Provide comprehensive protection with L, S, I, and G tripping operations.
  • 3Feature a mechanical ON/OFF button and status indicators for easy operation.
  • 4Allow easy retrofitting of auxiliary releases and electronic trip units.
  • 5Meet IEC 60947-2 standards for climate-proof operation and high quality.

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Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
N
AL
N
Model Number
3WT8121-5UN30-0AA1-ZA01

Specifications may be subject to change without notice

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