Square D QO2150 Miniature Circuit Breaker – 150A – 2 Pole – 120/240V – Plug-In – QO Series

The Square D QO2150 is a high-capacity residential and light commercial miniature circuit breaker designed for use in QO load centers. It provides fast-acting thermal magnetic protection against overloads and short circuits. Engineered for reliability, it ensures rapid fault interruption to protect electrical systems and connected equipment in residential distribution applications.

Electrical Ratings

• Current Rating: 150 A
• Voltage Rating: 120/240 VAC
• Phase: 1 Phase
• Poles: 2 Pole
• Interrupting Rating: 10 kA

Protection and Function

• Trip Technology: Thermal Magnetic
• Trip Function: Common Trip (Overload + Instantaneous Protection)
• Protection Type: Short-Circuit and Overload Protection
• Application: Residential and light commercial circuit protection

Configuration and Function

• Series: QO Series (Square D / Schneider Electric)
• Model: QO2150
• Frame Type: QO Miniature Frame
• Mounting Style: Plug-In
• Compatibility: Square D QO residential load centers
• Phase Connection: Single-phase distribution systems

Mechanical and Physical Characteristics

• Compact miniature breaker construction
• Plug-in installation for fast panel mounting
• Standard QO-series VISI-TRIP indicator (typical feature)
• Designed for residential load center integration
• Lightweight molded case design for branch circuit use

Standards and Certifications

• UL Listed
• CSA Certified
• Manufactured by Schneider Electric / Square D
• Designed for North American residential electrical standards

Features

• Fast-acting thermal magnetic trip protection
• Compact plug-in design for QO panels
• Reliable 150A residential circuit protection
• High-speed fault interruption capability
• Designed for use in Square D QO load centers
• Durable molded case construction
• Suitable for branch circuit and feeder applications
• Proven Square D reliability for residential systems