3WL1220-3EB66-4GN4-ZF12R21T40

Product ID:154721
Updated: 2026/4/23
Siemens 3WL1220-3EB66-4GN4-ZF12R21T40

Key Features

  • 1Handle up to 2000 A with an Icu=80kA at 500V for robust protection. 2、Comply with IEC 60068-2-30 for reliable operation in diverse climatic conditions. 3、Integrate seamlessly with PROFINET IO, PROFIBUS DP, Modbus TCP, and Modbus RTU networks. 4、Deploy as incoming-feeder, distribution, tie, or outgoing-feeder circuit breakers. 5、Retrofit accessories like ETUs, ground-fault modules, and rating plugs easily.
Product Details
3WL1220-3EB66-4GN4-ZF12R21T40
Siemens

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1220-3EB66-4GN4-ZF12R21T40

Specifications may be subject to change without notice