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

Eaton BQ Thermal Magnetic Circuit Breaker

Professional Four-Pole Circuit Protection Solution

The Eaton BQ Thermal Magnetic Circuit Breaker delivers exceptional electrical protection performance for residential and commercial electrical systems. This 30A four-pole circuit breaker provides reliable thermal-magnetic 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

Electrical Protection Performance

• 30 Ampere Four-Pole Configuration - Provides comprehensive circuit protection with dual two-pole design for 120/240V electrical systems
• 10 kAIC Interrupt Rating - Delivers reliable short-circuit protection and fault current interruption for residential and light commercial applications
• Thermal-Magnetic Trip Technology - Independent trip mechanism provides precise overcurrent protection with both thermal and magnetic response characteristics
• CTL Plug-On Design - One-inch width with convenient plug-on mounting for quick professional installation in Type BR loadcenters

Installation & Safety Features

• Rejection Tab Feature - Prevents improper installation and ensures compatibility only with appropriate Type BR loadcenters for enhanced electrical safety
• Wire Compatibility - Accommodates #14-4 AWG copper and aluminum conductors for versatile wiring applications
• UL 489 Listed - Meets rigorous safety standards and Federal Specifications Classification W-C375 for professional electrical installations

Technical Specifications

Amperage Rating: (2) Two-Pole 30A configuration in four-pole design, Voltage Rating: 120/240V, Interrupt Rating: 10 kAIC, Number of Poles: Four-pole, Circuit Breaker Type: BQ, Trip Type: Independent, Wire Size: #14-4 AWG Cu/Al, Mounting Method: Plug-on, Special Features: Includes rejection tab feature, Dimensions: 3.2" W x 3.1" H x 1.4" D, Weight: 2.5 lb, Certifications: UL 489, Compliances: Federal Specifications Classification W-C375, Used With: Type BR Loadcenters

Installation & Usage

1. Verify power is completely disconnected and lockout/tagout procedures are followed before beginning installation
2. Confirm circuit breaker compatibility with Type BR loadcenter and verify proper amperage rating for intended circuit
3. Align circuit breaker with loadcenter bus bars and firmly press plug-on connection until fully seated
4. Connect circuit conductors to breaker terminals ensuring proper wire size (#14-4 AWG Cu/Al) and secure connections
5. Verify rejection tab feature is properly engaged to prevent improper 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 loadcenters and electrical panels
• Light Commercial Applications - Circuit protection for small commercial buildings, offices, and retail establishments
• Multi-Wire Branch Circuits - Four-pole configuration ideal for protecting multiple circuits with shared neutral conductors
• HVAC System Protection - Reliable protection for heating, ventilation, and air conditioning equipment circuits
• Appliance Circuit Protection - Dedicated protection for major appliances requiring 240V power supply
• Electrical Panel Upgrades - Professional replacement and upgrade applications in existing Type BR loadcenters
• Code Compliance Projects - Meeting electrical code requirements for proper circuit protection and safety
• Electrical Contractor Applications - Professional installations requiring reliable thermal-magnetic protection technology

Thermal-Magnetic Protection Advantage

The independent thermal-magnetic trip mechanism provides superior overcurrent protection by combining thermal response for sustained overloads with magnetic response for short-circuit conditions. This dual-protection technology ensures reliable circuit interruption while minimizing nuisance tripping, making it ideal for professional electrical installations requiring dependable performance.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers the quality construction and dependable performance that electrical professionals trust worldwide. Every BQ circuit breaker meets rigorous UL safety standards and is engineered for reliable electrical protection, backed by Eaton's commitment to electrical safety and professional-grade reliability that electricians, electrical contractors, and facility managers depend on for critical power protection applications.