Square D QO335 - 35A, 3-Pole, Miniature Circuit Breaker (MCB)

Square D QO335 - 35A, 3-Pole, Miniature Circuit Breaker (MCB) is engineered to provide reliable overcurrent protection in three-phase electrical systems. This compact, dependable MCB is designed for use in panelboards, switchboards, and control panels where space, safety, and performance matter.

• Current rating: 35A, delivering targeted protection for feeders and circuits without sacrificing performance
• Poles: 3-Pole configuration supports three-phase systems, enabling synchronized protection across all phases
• Type: Miniature Circuit Breaker (MCB) designed to interoperate with standard Square D QO family equipment
• Applications: Ideal for industrial, commercial, and OEM applications requiring dependable protection in distribution panels and motor control centers
• Installation and compatibility: Suited for use in panelboards, switchboards, and control panels where a compact, reliable MCB is needed

Why the QO335 matters for your project? Its three-pole design delivers unified protection across all three phases, simplifying panel design and reducing wiring complexity in crowded rooms. With a 35A rating, it protects motors, feeders, and other critical loads from overcurrent events that can cause equipment damage and downtime.

This MCB is a practical choice for professionals who value dependable operation in demanding environments. It’s well-suited for:

• Industrial facilities deploying three-phase power in distribution panels and motor control centers
• Commercial electrical installations that require robust, space-efficient protection
• OEM applications where a reliable, standard-format MCB integrates into control panels and equipment

Compared to other protection options, the Square D QO335 provides a streamlined, three-pole solution in a single device, helping you maintain clean wiring schemes and straightforward maintenance routines. It’s built to perform consistently in everyday use, delivering the protection your circuits rely on while supporting safe, uninterrupted operation of connected equipment.