SQUARE D QO235 Miniature Circuit Breaker, 35A, 2 Pole, 120/240VAC, 10KA, Plug In Mount

Square D QO235 plug-in circuit breaker is used to protect circuits from overloads and short circuits. Its compact design allows for easy installation into compatible load centres and panels. This breaker is favoured for its reliability, quick reset capabilities and a broad range of amperage options. It safeguards wiring and appliances by interrupting power flow during abnormal conditions, preventing potential damage or hazards.

Working Mechanism:

• Square D QO235 Plug-In circuit breaker uses a thermal-magnetic system for protection. It has a bimetallic strip that bends if the current surpasses its limit, causing a shutdown.
• Additionally, its electromagnetic coil responds to high surges like short circuits, forcing the contacts to open and halt the circuit. This mechanism safeguards the electrical system and devices from overloads and faults effectively.

Frequently Asked Questions:

Q. What are the reasons for frequent tripping of the mini circuit breaker?

A. A ground fault, circuit overload, short-circuiting, defective circuit breaker or an arc fault can cause tripping of the circuit breaker.

Q. What are the points to inspect before operating the MCB breaker?

A.

• Inspect the unit for any cracks, chipping, discolouration or any sign of overheating. Tighten the terminals & connectors. Check the mounting hardware.
• Keep the area around the breaker clean by using an enclosure. Remove the dust, dirt, grease, moisture, foreign contaminants or any safety hazards near the circuit breaker area.
• Press the optional push-to-trip button at the bottom side of the unit to mechanically test the circuit breaker.
• Check that the unit's mechanical linkages, like the toggle actuator, are free to move by switching the unit ON & OFF several times.

Q. How do I select the right amperage rating for my complete moulded circuit breaker?

A. The amperage rating should be equal to or greater than the maximum current flowing through the circuit.