Product Model

3WL1240-2FB77-4GA4-ZF12F37R21R55T40

In Stock
Last updated: 2025/4/27
Siemens 3WL1240-2FB77-4GA4-ZF12F37R21R55T40

Selling Points

  • 1High-performance air circuit breaker for applications up to 4000 A.
  • 2Modular design allows easy retrofitting of communication components.
  • 3Advanced communication capabilities via PROFINET IO, PROFIBUS DP, and Modbus.
  • 4Climate-proof according to IEC 60068-2-30 for reliable operation.
  • 5Compatible with a wide range of electrical installations, including motors and transformers.
Product Details
3WL1240-2FB77-4GA4-ZF12F37R21R55T40
Siemens

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1240-2FB77-4GA4-ZF12F37R21R55T40

Specifications may be subject to change without notice