Overview
This listing is for a Square D / Schneider Electric QO Series Circuit Breaker, model QO340.
It is a 40A, 3-pole, plug-on style breaker designed for use in QO load centers and panelboards.
The QO line is known for fast trip response and reliable protection in residential, commercial, and light-industrial applications.
Breaker is new, never installed, and comes from the original factory box.
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Key Features
Manufacturer: Square D / Schneider Electric
Series: QO — Premium Plug-On Breaker Line
Model / Part No.: QO340
Amperage Rating: 40A
Poles: 3-Pole
Voltage Rating: 120/240V AC
Interrupt Rating: 10 kAIC
Connection Type: Plug-On
Mounting: QO Panelboards and Load Centers
Certifications: UL Listed • CSA Approved
Condition: New — from original OEM box
⸻
Applications
• Commercial & residential sub-panels
• HVAC & mechanical equipment disconnect
• Small machinery & pumps
• MRO and electrical service upgrades
• QO load centers requiring 3-phase or multi-circuit protection
⸻
Shipping & Handling
• Ships within 1 business day from Chicago, IL (60632)
Overview
This listing is for a Square D / Schneider Electric QO Series Circuit Breaker, model QO340.
It is a 40A, 3-pole, plug-on style breaker designed for use in QO load centers and panelboards.
The QO line is known for fast trip response and reliable protection in residential, commercial, and light-industrial applications.
Breaker is new, never installed, and comes from the original factory box.
⸻
Key Features
Manufacturer: Square D / Schneider Electric
Series: QO — Premium Plug-On Breaker Line
Model / Part No.: QO340
Amperage Rating: 40A
Poles: 3-Pole
Voltage Rating: 120/240V AC
Interrupt Rating: 10 kAIC
Connection Type: Plug-On
Mounting: QO Panelboards and Load Centers
Certifications: UL Listed • CSA Approved
Condition: New — from original OEM box
⸻
Applications
• Commercial & residential sub-panels
• HVAC & mechanical equipment disconnect
• Small machinery & pumps
• MRO and electrical service upgrades
• QO load centers requiring 3-phase or multi-circuit protection
⸻
Shipping & Handling
• Ships within 1 business day from Chicago, IL (60632)