QOB390 | Schneider Electric Mini Circuit Breaker

Description 

The QOB390 is a mini circuit breaker from the QO series by Schneider Electric. It is rated for 90 amps and features three poles, suitable for 120/240 volts AC applications. With a 10kA interrupting capacity, it provides reliable protection against electrical faults. Designed for bolt-on installation, this breaker ensures secure and efficient connections in electrical panels, making it ideal for residential and light commercial use.

Technical Specifications 

Information About QOB390

The QOB390 is a mini circuit breaker from Schneider Electric's QOB Series. This breaker is designed for three-phase systems, operating at a voltage of 240 volts AC, and has a current rating of 90 amps. It features three poles, making it suitable for various industrial and commercial applications requiring robust circuit protection.

The QOB390 provides Long-Time (LI) and Instantaneous trip functions, offering comprehensive protection against both prolonged overloads and sudden short circuits. Its thermal magnetic protection mechanism ensures effective response to different types of electrical faults, combining thermal elements for gradual overload protection and magnetic elements for quick reaction to short circuits.

With an AIC (Ampere Interrupting Capacity) rating of 10kA at 240 volts, the QOB390 can safely interrupt high fault currents, ensuring system safety and reliability. The bolt-on connection design facilitates secure and straightforward installation in electrical panels, enhancing ease of use and maintenance.

In summary, the Schneider Electric QOB390 mini circuit breaker delivers reliable thermal magnetic protection, high interrupting capacity, and convenient bolt-on installation, making it an excellent choice for protecting electrical circuits in three-phase systems.

Manufacturer information

Schneider Electric, a global leader in energy management and automation, offers innovative solutions for efficiency and sustainability. With a diverse portfolio spanning power distribution, automation, and renewable energy, Schneider Electric is committed to shaping a more connected and sustainable future.

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