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SiemensAir Circuit Breaker
Product Model

3WL1120-2NB66-4GA4-ZF12R21T40

Manufacturer

Siemens

Category

Air Circuit Breaker

Product ID

166455

In Stock
Last updated: 2025/7/10
View Specifications
Siemens 3WL1120-2NB66-4GA4-ZF12R21T40

Selling Points

  • 1High Current Rating: Supports up to 2000 A at 690 V AC.
  • 2Enhanced Safety: Icu=55 kA at 500 V for superior overcurrent protection.
  • 3Flexible Operation: Motorized/manual operating mechanism with spring charging motor.
  • 4Advanced Monitoring: Graphic display for LSI protection adjustment (0.4-1 in) and breaker status sensor.
  • 5Comprehensive Connectivity: Ready indicator, COM35 module, PROFINET IO, Modbus TCP, and metering capabilities.
Product Details
3WL1120-2NB66-4GA4-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
3WL1120-2NB66-4GA4-ZF12R21T40

Specifications may be subject to change without notice