SQUARE D QO340 Miniature Circuit Breaker, 40A, 3 Pole, 120/240VAC, 10KA, Plug In Mount

Square D QO340 plug-in circuit breaker is used in NQ panelboards and QO load centres. It does not require DIN rail or bolts for installation process and can effectively interrupt current flow upon detecting low-level faults within the circuit. This circuit breaker is linked to the power supply through bus bars, removing the necessity for wire pigtail connections and aiding in the organisation of the panelboard or load centre.

Working Mechanism:

• This circuit breaker is easily mounted into compatible panelboards or load centres.
• It is then connected to power supply through bus bars, eliminating pigtail connections.
• The circuit breaker then constantly monitors circuit current and triggers when fault or overload occurs.
• It then contacts rapidly open to interrupt current flow and is manually reset for temporary faults.

Features:

• This 3-pole circuit breaker has a DC voltage rating of 48VDC.
• It has an interrupt capacity of 10kAIC at 120 / 240VAC.
• This circuit breaker offers plug-in mounting for easy installation in hard-to-reach areas.
• It is equipped with a paddle actuator, allowing for convenient manual operation.
• This circuit breaker is integrated with a lug connection terminal for safe and secure operation.

Compatible Accessories:

• Square D QO Series Load Centres: These load centres find common application across commercial and industrial settings for the distribution of electrical current. They work in conjunction with the brand's QO series circuit breakers to ensure protection against overcurrents and short circuits within electrical systems.

Frequently Asked Questions:

Q. Does Raptor Supplies offer similar Square D circuit breakers with different amperage ratings?

A. Yes, Raptor Supplies offers Square D QO350, QO360 and QO310 circuit breakers having same voltage rating of 240VAC but with different amperage rating of 50, 60 and 10A, respectively.

Q. What safety precautions should I take while choosing a plug-in circuit breaker?

A.

• Check compatibility with your electrical panel.
• Match the breaker's current rating to your circuit's load.
• Ensure proper voltage rating for your electrical system.
• Choose the right type: standard, AFCI, GFCI or combination.

Q. How do I maintain this plug-in circuit breaker?

A.

• Regularly inspect for signs of wear or damage.
• Clean away dust and debris to ensure proper connections.
• Tighten any loose connections if identified.
• Check for overheating or unusual smells during operation.
• Test the breaker's functionality periodically.
• Replace if malfunctioning or damaged beyond repair.