A-B 140U-L3D3-D40L Molded Case Circuit Breaker – Breaker Module
The A-B 140U-L3D3-D40L Molded Case Circuit Breaker is designed for industrial applications requiring reliable overcurrent protection and efficient circuit breaking. It is suitable for environments where safety and performance are critical.
Brand:A-B
Model:140U
Submodel:L3D3-D40L
Type:Molded Case Circuit Breaker
Rated Current:400A
Voltage Rating:600V
Interrupting Rating:200kA
Mounting Type:Panel Mount
Operating Temperature Range:-30°C to +70°C
Certifications:UL, CSA, IEC
The Allen Bradley 140U-L3D3-D40L Molded Case Circuit Breaker is built for demanding industrial environments.
Designed to handle high currents and provide precise overload protection, this circuit breaker ensures safe and efficient operation in your electrical systems.
Its thermal-magnetic tripping mechanism guarantees quick response to faults, minimizing damage.
The L3 frame size allows for versatile mounting options, including panel mounting, providing flexibility for different installations.
Easy to install and maintain, this breaker is a reliable choice for upgrading or building new industrial electrical setups.












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