Eaton Thermal Magnetic Circuit Breaker Type BQ Four-Pole 30A/40A 10kAIC 120/240V Plug-On CTL

Eaton Thermal Magnetic Circuit Breaker Type BQ Four-Pole 30A/40A 10kAIC 120/240V Plug-On CTL

Professional Electrical Circuit Protection Equipment

The Eaton Type BQ Thermal Magnetic Circuit Breaker delivers exceptional electrical power management and control performance for residential and commercial electrical distribution systems. This four-pole circuit breaker with dual amperage ratings of 30A and 40A 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

Advanced Circuit Protection Performance

• Dual Amperage Configuration - Features one two-pole 30A and one two-pole 40A section in a single four-pole unit for versatile electrical load management
• 10 kAIC Interrupt Rating - Provides reliable short-circuit protection with 10,000 ampere interrupting capacity for residential and light commercial applications
• 120/240V Voltage Rating - Engineered for standard residential and commercial electrical systems with dual voltage capability
• Thermal Magnetic Trip Technology - Independent trip mechanism provides precise overcurrent protection with reliable thermal and magnetic operation

Professional Installation Features

• CTL Plug-On Design - 1-inch CTL (Circuit Total Limitation) plug-on connection ensures proper installation in Type BR loadcenters
• Rejection Tab Feature - Built-in rejection tab prevents incorrect installation and ensures proper circuit breaker compatibility
• Wire Compatibility - Accepts #14-4 AWG copper and aluminum conductors for flexible wiring applications

Technical Specifications

Amperage Rating: (1) Two-Pole 30A, (1) Two-Pole 40A | Voltage Rating: 120/240V | Interrupt Rating: 10 kAIC | Number of Poles: Four-pole | Circuit Breaker Type: BQ | Trip Type: Independent | Mounting Method: Plug-on | Wire Size: #14-4 AWG Cu/Al | Used With: Type BR Loadcenters | Certifications: UL 489 | Compliances: Federal Specifications Classification W-C375 | Dimensions: 3.5" L x 2.5" W x 3.1" H | Weight: 2.5 lb

Installation & Usage

1. Verify power is OFF and test electrical system before beginning installation work
2. Confirm Type BR loadcenter compatibility and available space for four-pole installation
3. Align circuit breaker with bus bars and press firmly until plug-on connection is secure
4. Connect branch circuit conductors to appropriate amperage terminals (30A or 40A sections)
5. Verify rejection tab is properly seated to prevent incorrect installation
6. Test circuit breaker operation and verify proper electrical connections before energizing system

Professional Applications

Ideal for:

• Residential Electrical Systems - Main and branch circuit protection in residential electrical panels and loadcenters
• Multi-Circuit Applications - Dual amperage capability for protecting different electrical loads in single installation
• Commercial Light Duty - Small commercial and light industrial electrical distribution systems
• HVAC System Protection - Circuit protection for heating, ventilation, and air conditioning equipment
• Appliance Circuit Protection - Dedicated circuits for major appliances requiring different amperage ratings
• Electrical Panel Upgrades - Replacement and upgrade applications in existing Type BR electrical systems
• Multi-Family Housing - Electrical distribution in apartments, condominiums, and multi-unit residential buildings
• Electrical Safety Systems - Overcurrent protection for critical electrical circuits requiring reliable operation

Type BQ Technology Advantage

The Type BQ circuit breaker features advanced thermal magnetic protection technology with independent trip mechanisms for each pole section. The CTL plug-on design ensures proper installation while the rejection tab feature prevents incorrect mounting, providing enhanced electrical safety and system reliability for professional electrical installations.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers unmatched quality and reliability in circuit protection technology. This UL 489 listed circuit breaker meets rigorous electrical safety standards and provides the dependable performance that electricians, electrical contractors, and facility professionals trust worldwide for critical electrical protection applications.