3WT8121-5KU20-0AA1

Product ID:105029
Updated: 2026/7/3
Siemens 3WT8121-5KU20-0AA1

Key Features

  • 1Enhance safety with overcurrent, short-circuit, and ground-fault protection.
  • 2Easily retrofit electronic trip units and current transformers.
  • 3Ensure clear operation with ON-OFF and ready-to-close indicators.
  • 4Handle up to 66 kA across a 400 A to 4000 A range.
  • 5Meet international standards for top-tier quality and reliability.

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Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
N
AL
N
Model Number
3WT8121-5KU20-0AA1

Specifications may be subject to change without notice

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