3WL1120-4AA66-5FA4-ZR21T40

Product ID:105061
Updated: 2026/7/3
Siemens 3WL1120-4AA66-5FA4-ZR21T40

Key Features

  • 1Handle currents up to 6300 A (AC) and 4000 A (DC) with full IEC 60947-2 compliance.
  • 2Cover a wide performance range from 630 A to 6300 A with three versatile frame sizes.
  • 3Integrate seamlessly via PROFINET IO, PROFIBUS DP, Modbus TCP, or Modbus RTU.
  • 4Retrofit modules easily for Electronic Trip Units, sensors, and accessories.
  • 5Enhance diagnostics with metering functions and ground-fault modules.

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Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1120-4AA66-5FA4-ZR21T40

Specifications may be subject to change without notice

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