3WL1120-3AA66-4GA4-ZR21T40

Product ID:222527
Updated: 2026/4/5
Siemens 3WL1120-3AA66-4GA4-ZR21T40

Key Features

  • 1Handle currents up to 6300A AC and 4000A DC with full IEC compliance. 2、Apply flexibly to incoming, distribution, tie, and outgoing feeder circuits. 3、Integrate seamlessly via PROFINET, PROFIBUS, Modbus TCP, and Modbus RTU. 4、Retrofit easily with modular ETUs, ground-fault modules, and rating plugs. 5、Enhance 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