Eaton Quicklag BAB Series Single-Pole Thermal-Magnetic Circuit Breaker

Eaton Quicklag BAB Series Single-Pole Thermal-Magnetic Circuit Breaker

The Eaton Quicklag BAB Series is a line of single-pole, thermal-magnetic circuit breakers built for industrial and commercial electrical distribution panels. This family is available in 20A and 40A amperage ratings to match branch circuit and feeder current requirements, and every breaker in the series carries a 10 kAIC interrupting rating and a 120/240V voltage rating for standard single-phase panelboard applications. Each Quicklag BAB breaker uses a non-interchangeable trip design, with the trip unit fixed at the factory-set rating so it cannot be swapped or altered in the field, which helps maintain the integrity of the circuit protection scheme over the life of the installation. The combination of thermal and magnetic trip elements allows these breakers to respond to both slow, sustained overloads and fast, high-current short-circuit events, providing layered protection for connected branch circuits, feeders, and equipment.

Key Features

• Single-Pole Configuration: Provides single-pole circuit protection for 120/240V branch circuits and feeders.
• Thermal-Magnetic Trip Mechanism: Combines a thermal element for overload protection with a magnetic element for instantaneous short-circuit protection.
• Amperage Options: Available in 20A and 40A ratings to suit a range of branch circuit and feeder current demands.
• 10 kAIC Interrupting Rating: Rated to safely interrupt fault currents up to 10,000 amps (kAIC), helping protect downstream equipment and wiring during fault conditions.
• 120/240V Voltage Rating: Compatible with standard 120/240V single-phase panelboards and load centers.
• Non-Interchangeable Trip Design: The trip unit on each BAB Series breaker is factory-set and non-interchangeable, reducing the risk of unauthorized field adjustment of the breaker's protective settings.
• Quicklag Series Construction: Built as part of Eaton's Quicklag line of industrial thermal-magnetic breakers, designed for dependable performance in demanding electrical environments.

Technical Specifications

• Configuration: 1-Pole
• Amperage Rating: 20A or 40A (select from available options)
• Interrupt Rating: 10 kiloamps
• Voltage Rating: 120/240V
• Product Details: Quicklag Industrial Thermal-magnetic Circuit Breaker

Typical Applications

• Industrial and Commercial Panelboards
• Branch Circuit Overcurrent Protection
• Load Center and Distribution Panel Installations
• Replacement Breaker for BAB-Series Panelboards
• New Construction and Electrical Retrofit Projects

Why Eaton?

Eaton's Quicklag BAB Series combines a thermal-magnetic trip mechanism, a 10 kAIC interrupting rating, and a non-interchangeable trip design to deliver consistent, code-compliant circuit protection across 20A and 40A single-pole breakers rated for 120/240V branch circuits. This construction is intended to help electrical professionals maintain reliable, long-term overcurrent protection across industrial and commercial installations. Choosing an Eaton Quicklag breaker means specifying a component built to a defined single-pole, thermal-magnetic protection standard for demanding panelboard applications.