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SiemensAir Circuit Breaker
Product Model

3WL1212-4FB66-4GA4-ZF12R21T40

Manufacturer

Siemens

Category

Air Circuit Breaker

Product ID

206479

In Stock
Last updated: 2025/5/12
View Specifications
Siemens 3WL1212-4FB66-4GA4-ZF12R21T40

Selling Points

  • 1High current rating up to 1250 A for robust electrical systems.
  • 23-pole design with slide-in module frame for easy installation and maintenance.
  • 3IEC In=1250 A up to 690 V, 50/60 Hz AC, ensuring reliable operation in various environments.
  • 4Overcurrent release ETU45 with adjustable protection settings (0.4-1 in) and display.
  • 5Motorized/manual operating mechanism with spring charging motor for efficient operation.
Product Details
3WL1212-4FB66-4GA4-ZF12R21T40
Siemens

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Lifecycle
P.M300
Country of Origin
China
ECCN
9N9999
AL
N
Model Number
3WL1212-4FB66-4GA4-ZF12R21T40

Specifications may be subject to change without notice