Overview
The Square D QO240VH is a 40-amp, 2-pole QO miniature circuit breaker for compatible Square D QO load centers and NQ panelboards. It provides standard thermal-magnetic overcurrent protection with a 22 kA interrupting rating at 120/240V AC.
Key Features
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Protection: Standard thermal-magnetic trip with Visi-Trip visual trip indication.
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Installation: Plug-in QO mounting with box-lug terminals accepting 8–2 AWG copper or aluminum conductors.
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Compatibility: Designed for compatible Square D QO load centers and NQ panelboards; verify equipment labeling before installation.
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Performance: Rated 40A, 2-pole, 120/240V AC with 22 kAIC interrupting capacity and a 104°F (40°C) ambient rating.
Specifications
- Manufacturer: Square D by Schneider Electric
- Catalog Number: QO240VH
- Series: QO
- Amperage: 40 A
- Poles / Phase: 2-pole / single-phase
- Voltage: 120/240V AC
- Interrupting Rating: 22 kAIC
- Protection: Thermal Magnetic
- Mounting: Plug-In
- Terminal: Box Lug
- Wire Range: 8–2 AWG copper or aluminum
- Ambient Rating: 104°F (40°C)
- Certifications: UL Listed, CSA Certified, HACR Rated
- UPC: 785901054955
Common Applications
Suitable for source-supported residential and light-commercial two-pole branch circuits and HVAC applications in compatible Square D QO equipment. A qualified electrical professional should verify panel compatibility, conductor sizing, and applicable electrical codes before installation.
