Eaton Thermal-Magnetic Circuit Breaker 40A Three-Pole 240V 22kAIC Bolt-On QBHW

Eaton Quicklag Industrial Thermal-Magnetic Circuit Breaker

Professional Three-Pole Electrical Protection Equipment

The Eaton Quicklag Industrial Thermal-Magnetic Circuit Breaker delivers exceptional electrical power management and control performance for commercial and industrial electrical systems. This 40A three-pole circuit breaker provides reliable electrical protection designed for professional electricians, electrical contractors, and facility managers, offering the proven reliability and advanced technology that professionals trust from the global leader in intelligent power management.

Professional Features & Benefits

Superior Electrical Protection Performance

• 40 Ampere Current Rating - Provides robust electrical protection for medium-duty commercial and industrial circuits with reliable overcurrent protection
• 22 kAIC Interrupt Rating - Delivers high interrupting capacity for safe fault current interruption in demanding electrical applications
• 240V Voltage Rating - Engineered for standard commercial voltage systems with precise voltage protection capabilities
• Three-Pole Configuration - Ensures comprehensive protection across all three phases for balanced electrical distribution systems

Professional Installation & Protection

• Bolt-On Mounting Method - Secure mechanical connection ensures reliable installation in electrical panels and switchgear applications
• QBHW Circuit Breaker Type - Professional-grade Quicklag design optimized for industrial thermal-magnetic protection requirements
• Non-Interchangeable Trip Type - Factory-calibrated trip mechanism provides consistent and reliable overcurrent protection performance

Quality Construction & Compliance

• CSA Certified Quality - Meets rigorous Canadian Standards Association requirements for electrical safety and performance standards
• HACR Rated Design - Heating, Air Conditioning, and Refrigeration rated for specialized HVAC electrical protection applications

Technical Specifications

Amperage Rating: 40A, Voltage Rating: 240V, Interrupt Rating: 22 kAIC, Number of Poles: Three-pole, Circuit Breaker Type: QBHW, Trip Type: Non-Interchangeable, Mounting Method: Bolt-on, Dimensions: 4.7" H x 3.2" W x 3.8" D, Weight: 1.1 lb, Certifications: CSA Certified, Special Rating: HACR rated for HVAC applications

Installation & Usage

1. Verify electrical panel compatibility and ensure proper voltage rating match for 240V three-pole applications
2. Turn off main power supply and verify de-energized state using appropriate electrical testing equipment
3. Position circuit breaker in designated panel slot ensuring proper alignment with bus bars
4. Secure bolt-on connection following manufacturer torque specifications for reliable mechanical and electrical contact
5. Connect load conductors to circuit breaker terminals using proper wire sizing and connection methods
6. Test circuit breaker operation and verify proper electrical protection functionality before energizing system

Professional Applications

Ideal for:

• Commercial Electrical Systems - Office buildings, retail facilities, and commercial properties requiring reliable 40A three-phase protection
• Industrial Power Distribution - Manufacturing facilities, processing plants, and industrial operations with 240V electrical systems
• HVAC Electrical Protection - Heating, ventilation, and air conditioning systems requiring HACR-rated circuit protection
• Motor Control Centers - Three-phase motor protection and control applications in industrial and commercial facilities
• Electrical Panel Upgrades - Replacement and upgrade applications in existing electrical distribution systems
• Switchgear Applications - Integration into commercial and industrial switchgear assemblies requiring bolt-on mounting
• Load Center Protection - Three-pole protection for balanced electrical loads in commercial distribution panels
• Electrical Safety Systems - Critical overcurrent protection for electrical systems requiring high interrupt capacity

Thermal-Magnetic Protection Advantage

The thermal-magnetic trip mechanism combines the benefits of thermal protection for overload conditions and magnetic protection for short-circuit faults, providing comprehensive electrical protection. This dual-protection technology ensures reliable operation across the full range of overcurrent conditions, from sustained overloads to high-magnitude fault currents, making it ideal for demanding commercial and industrial electrical applications.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers the reliability and performance that electrical professionals demand. Our commitment to electrical safety, rigorous CSA certification standards, and proven track record in commercial and industrial applications make Eaton circuit breakers the trusted choice for electricians, electrical contractors, and facility professionals worldwide. Every Eaton circuit breaker represents decades of engineering excellence and manufacturing precision.