Square D QOB340 Miniature Circuit Breaker – 40A – 3-Pole – 240V – 10kA – Bolt-On – QO Series

The Square D QOB340 is a 40A, 3-pole bolt-on miniature circuit breaker from the QO Series. It features thermal-magnetic protection and a Visi-Trip indicator for visible trip status. The breaker is rated for 240VAC applications and provides a 10kA AC interrupting rating, with a 5kA interrupting rating at 48VDC. It uses box-type lugs that accommodate 8–2 AWG copper or aluminum conductors.

Specifications:

• Manufacturer : Schneider Electric / Square D
• Product Type : Miniature Circuit Breaker
• Catalog No. : QOB340
• Alternate Model : Q0B340
• Product Family : QO Series
• Breaker Type : Standard Circuit Breaker
• Current Rating : 40A
• Voltage Rating : 240VAC
• Number of Poles : 3-Pole
• Phase : 3-Phase
• Protection Type : Thermal-Magnetic
• Mounting Type : Bolt-On
• Electrical Connection : Box Lugs
• Trip Indication : Visi-Trip
• Ratings : HACR Rated
• Interrupting Rating : 10kA at 120/240VAC, 240VAC, and 120VAC; 5kA at 48VDC
• Number of Panel Spaces : 3
• Wire Size : AWG 8–AWG 2 Copper or Aluminum
• Ambient Rating : 40°C / 104°F
• Dimensions (H × W × D) : 3.12" × 2.25" × 2.91"
• Application : Branch Circuit Overload and Short-Circuit Protection
• Brand : Square D
• Authenticity : Genuine Schneider Electric / Square D Product

Part Numbers & Identification:

• Manufacturer Part Number (MPN) : QOB340
• Catalog Number : QOB340
• Alternate Model : Q0B340
• Product Family : Square D QO Miniature Circuit Breakers
• Series : QO
• Brand : Square D
• Manufacturer : Schneider Electric
• Product Type : Bolt-On Miniature Circuit Breaker
• Model : QOB340
• Breaker Configuration : 3-Pole, 40A
• upc:785901417149

Compatibility:

Designed for use with compatible Square D / Schneider Electric QO Series electrical distribution equipment that accepts QO bolt-on circuit breakers. The QOB340 is a 3-pole, 40A, 240VAC bolt-on breaker intended for compatible three-phase electrical distribution applications.

The breaker uses box-type lugs and accommodates 8–2 AWG copper or aluminum conductors. The integrated Visi-Trip indicator provides visible indication of a tripped breaker. Always verify the specific panelboard or load center model, approved breaker type, system voltage, pole configuration, interrupting rating, wire size, and installation requirements before installation.

Certifications:

• QO Series
• 40A Rating
• 3-Pole / 3-Phase
• 240VAC Rated
• Thermal-Magnetic Protection
• Bolt-On Mounting
• Box-Lug Electrical Connection
• Visi-Trip Indicator
• 10kA AC Interrupting Rating
• 5kA at 48VDC
• HACR Rated
• 3 Panel Spaces
• AWG 8–AWG 2 Copper or Aluminum
• CSA Approved
• UL Listed
• Genuine Schneider Electric / Square D Product

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You may return items within 10 days of delivery for a refund.

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