3WL1112-3MB66-4GA4-ZF12R21T40

Product ID:143256
Updated: 2026/7/10
Siemens 3WL1112-3MB66-4GA4-ZF12R21T40

Key Features

  • 1Provide high-quality protection with a 4-pole, Size 1 design.
  • 2Ensure compatibility for systems up to 1250 A and 690 V AC.
  • 3Simplify installation via rear horizontal connections.
  • 4Enhance safety with an Icu of 55 kA at 500 V.
  • 5Gain peace of mind with a 12-month warranty.

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Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1112-3MB66-4GA4-ZF12R21T40

Specifications may be subject to change without notice

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