3WL1120-3MB66-4GA4-ZF37K07R21T40

Product ID:147265
Updated: 2026/4/22
Siemens 3WL1120-3MB66-4GA4-ZF37K07R21T40

Key Features

  • 1Handle currents up to 2000 A at 690 V AC for demanding applications. 2、Provide advanced overcurrent protection with an Icu rating of 66 kA at 500 V. 3、Utilize a compact Size 1 design ideal for space-constrained electrical panels. 4、Connect easily with flexible rear horizontal connection options for quick setup. 5、Ensure compliance with international IEC safety and performance standards.
Product Details
3WL1120-3MB66-4GA4-ZF37K07R21T40
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1120-3MB66-4GA4-ZF37K07R21T40

Specifications may be subject to change without notice