Product Overview
The Square D QO340 3-Pole Circuit Breaker is a durable, high-performance thermal magnetic molded case circuit breaker built to deliver reliable circuit protection in residential, commercial, and industrial applications. With a current rating of 40 amps and voltage rating of 120/240VAC (also 48VDC), this breaker is engineered for efficiency and longevity.
It features a plug-in connection for easy installation and supports both long-time and instantaneous trip functions, ensuring your electrical system is protected from overloads and short circuits. Its 10kAIC interrupting capacity at 120/240VAC offers powerful defense against fault currents, and it fits seamlessly into QO load centers and panelboards.
Trust in Square D by Schneider Electric, a leader in electrical protection, for dependable circuit safety and code-compliant performance.
? Key Features (Bullet Points):
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3-Pole Circuit Breaker – Manages three-phase circuits or split-phase configurations
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40 Amp Rating – Suitable for medium to high-load electrical systems
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120/240VAC and 48VDC – Versatile voltage handling for various applications
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Thermal Magnetic Protection – Combines long-time and instantaneous trip features
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10kAIC Interrupt Rating – High fault current interruption capacity
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Plug-In Mounting – Quick, tool-free installation in QO panels
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Durable Molded Case Design – Built for demanding residential and commercial use
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UL Listed – Meets safety and quality assurance standards
