3WL1240-3AA77-4GA4-ZR21T40

Product ID:196047
Updated: 2026/7/8
Siemens 3WL1240-3AA77-4GA4-ZR21T40

Key Features

  • 1Handle currents up to 6300 A AC and 4000 A DC reliably.
  • 2Retrofit communication modules and accessories easily with modular design.
  • 3Integrate seamlessly via PROFINET IO, PROFIBUS DP, Modbus TCP, or Modbus RTU.
  • 4Serve as incoming-feeder, distribution, tie, or outgoing-feeder circuit breakers.
  • 5Operate reliably in harsh climates per IEC 60068-2-30 standards.

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Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1240-3AA77-4GA4-ZR21T40

Specifications may be subject to change without notice

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