3WL1240-4NB77-4GA4-ZF12R21T40

Product ID:168922
Updated: 2026/4/24
Siemens 3WL1240-4NB77-4GA4-ZF12R21T40

Key Features

  • 1Handle up to 6300 A (AC) and 4000 A (DC) with full IEC compliance. 2、Deploy across incoming, distribution, tie, and outgoing feeder applications. 3、Utilize Electronic Trip Units for precise monitoring and advanced diagnostics. 4、Retrofit communication modules and accessories easily for future upgrades. 5、Operate reliably in diverse climates per IEC 60068-2-30 standard.
Product Details
3WL1240-4NB77-4GA4-ZF12R21T40
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1240-4NB77-4GA4-ZF12R21T40

Specifications may be subject to change without notice