3WL1120-3AA66-4GA4-ZR21T40

Product ID:222527
Updated: 2026/6/18
Siemens 3WL1120-3AA66-4GA4-ZR21T40

Key Features

  • 1Handle currents up to 6300A AC and 4000A DC with full IEC compliance.
  • 2Apply flexibly to incoming, distribution, tie, and outgoing feeder circuits.
  • 3Integrate seamlessly via PROFINET, PROFIBUS, Modbus TCP, and Modbus RTU.
  • 4Retrofit easily with modular ETUs, ground-fault modules, and rating plugs.
  • 5Enhance safety and monitoring with comprehensive protective devices and accessories.
Product Details
3WL1120-3AA66-4GA4-ZR21T40
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1120-3AA66-4GA4-ZR21T40

Specifications may be subject to change without notice