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Siemens CQD Series CQD340

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CQD340

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Siemens offers the CQD340, a reliable circuit breaker specifically designed for multi-phase electrical systems. With a rated amperage of 40 Amps and a voltage rating of 480/277 Volts AC, this unit is suited for demanding applications.

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Technical specifications for CQD340

ManufacturerSiemens
Product TypeCircuit Breaker
Product LineCQD Series
Part NumberCQD340
UPC783643277786
Pole Configuration3 Poles
Panel Mounting MethodDIN Rail
Dielectric Withstand Level600 Volts
Conductor Termination MethodScrew Clamp
Rated Amperage40 Amps
Voltage Rating480/277 Volts AC
System Phases3 Phase
Maximum Interrupting Capacity14 kA at 480V AC
Trip Mechanism TypeThermal-Magnetic
Actuator MechanismMagnetic Actuation
Maximum Ambient Temperature40 Degrees Celsius

The Siemens CQD340 circuit breaker is designed to provide robust protection in complex electrical installations. This unit includes three poles, making it ideal for 3-phase systems, and is rated for 40 Amps, ensuring reliable operation under various load conditions. The voltage rating of 480/277 Volts AC positions the CQD340 effectively for substantial electrical applications.

This breaker employs a thermal-magnetic trip mechanism, offering comprehensive protection against overloads and short circuits. It possesses a maximum interrupting capacity of 14 kiloamperes at 480V AC, granting it the ability to manage significant electrical faults safely. With a dielectric withstand level of 600 Volts, this breaker provides additional assurance of reliability against insulation failures.

It features a DIN rail mounting method, simplifying installation in panel boards. The screw clamp method allows for secure conductor terminations, facilitating easy wiring. Operating within a maximum ambient temperature of 40 degrees Celsius, this circuit breaker is engineered for dependable performance in a variety of environments.