3WL1120-4NB66-4GA4-ZF37K07R21T40

Product ID:144051
Updated: 2026/4/21
Siemens 3WL1120-4NB66-4GA4-ZF37K07R21T40

Key Features

  • 1Handle high currents up to 2000A at 690V for demanding applications. 2、Ensure compliance with international IEC safety and performance standards. 3、Provide reliable overcurrent protection with an Icu rating of 66kA at 500V. 4、Simplify installation and maintenance via a horizontal rear connection design. 5、Achieve long-lasting durability in tough environments with a robust guide frame.
Product Details
3WL1120-4NB66-4GA4-ZF37K07R21T40
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1120-4NB66-4GA4-ZF37K07R21T40

Specifications may be subject to change without notice