3WL1240-3MB77-4GA4-ZF12R21T40

Product ID:149610
Updated: 2026/4/22
Siemens 3WL1240-3MB77-4GA4-ZF12R21T40

Key Features

  • 1Handle up to 4000 A with an 80 kA Icu rating for robust protection. 2、Adapt easily with retrofittable modules for Electronic Trip Units. 3、Ensure climate-proof operation per IEC 60068-2-30 standard. 4、Integrate seamlessly via PROFINET, PROFIBUS, or Modbus protocols. 5、Deploy in commercial, residential, and industrial electrical installations.
Product Details
3WL1240-3MB77-4GA4-ZF12R21T40
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1240-3MB77-4GA4-ZF12R21T40

Specifications may be subject to change without notice