3WL1220-3MB66-4GN4-ZF12F36R21T40

Product ID:186814
Updated: 2026/7/9
Siemens 3WL1220-3MB66-4GN4-ZF12F36R21T40

Key Features

  • 1Protect high-current circuits with 100kA Icu rating at 500V.
  • 2Deploy in Size II applications per IEC standards up to 2000A.
  • 3Ensure reliable performance across 50/60Hz AC power systems.
  • 4Simplify installation using the horizontal rear connection design.
  • 5Enhance safety with advanced built-in protective features.

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Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1220-3MB66-4GN4-ZF12F36R21T40

Specifications may be subject to change without notice

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