Eaton BAB2040D Thermal Magnetic Circuit Breaker - UL Listed
Part Number: BAB2040D
Quick Summary
Eaton BAB2040D thermal magnetic circuit breaker protects industrial panels by interrupting fault currents in control and power circuits. Too often installers struggle with mis-sizing, difficult mounting, and unreliable performance that derail production schedules. UL Listed and CSA Certified ensure regulatory compliance, while the HACR rating supports HVAC applications and equipment in demanding facilities. Designed for 120/240 V two-pole circuits, it provides precise 40 A protection with a 10 kAIC interrupt rating to minimize damage from faults. Engineers appreciate the compact bolt-on package, which simplifies panel assembly and reduces installation time, delivering measurable cost savings over competing solutions.
Product Information
Extended Description
BAB2040D Eaton: Eaton BAB thermal magnetic circuit breaker,Quicklag industrial thermal-magnetic circuit breaker,Moisture-fungus treatment,40 A,10 kAIC,Two-pole,120/240 V,Non-Interchangeable,Q7,BAB
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BAB2040D
UPC
786679660218
Product Length/Depth
3.8 in
Product Height
4.8 in
Product Width
2.2 in
Product Weight
0.65 lb
Warranty
1 year
Certifications
UL Listed CSA Certified
Catalog Notes
HACR rated
Circuit breaker type
BAB
Mounting Method
Bolt-on
Number of poles
Two-pole
Type
Quicklag industrial thermal-magnetic circuit breaker
Amperage Rating
40 A
Interrupt rating
10 kAIC
Trip Type
Non-Interchangeable
Voltage rating
120/240 V
Quantity
7
Special features
Bolt-on mountingHigh intensity discharge
Feature → Thermal magnetic protection with Quicklag operation delivers precise, fast fault clearing for both overloads and short circuits. Business Impact → Reduces nuisance trips and protects critical equipment, improving line uptime and reducing unplanned maintenance costs. Application → Motor control circuits and distribution panels in manufacturing environments benefit from predictable trip behavior and robust protection. Feature → Bolt-on mounting and a two-pole design simplify installation and alignment in crowded panels. Business Impact → Speeds up commissioning, minimizes field labor, and enables streamlined retrofits in existing control cabinets. Application → Industrial automation panels and switchgear assemblies where space is at a premium. Feature → 10 kAIC interrupt rating provides strong fault-clearing capability for high-energy applications. Business Impact → Enhances system safety and reduces arc energy exposure during faults, supporting safer maintenance windows. Application → Heavy machinery, conveyors, and process lines with elevated fault current potential. Feature → UL Listed, CSA Certified, and HACR rated characteristics ensure regulatory compliance and compatibility with HVAC-related equipment. Business Impact → Lowers compliance risk, simplifies procurement, and supports cross-industry deployment. Application → Buildings, manufacturing plants, and HVAC control panels requiring certified protection. Feature → Compact dimensions (3.8 in L, 4.8 in H, 2.2 in W) and 40 A rating enable efficient integration in new builds and panel upgrades. Business Impact → Frees up panel space, reduces enclosure costs, and accelerates project timelines. Application → New installations and retrofit projects across industrial sites.
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FAQs
The BAB2040D uses a bolt-on mounting method and is a two-pole device designed for 120/240 V circuits. Plan for secure panel mounting, verify clearances around the device, and ensure space for the breaker to accommodate its 3.8 in depth and 4.8 in height. This layout supports quick retrofits and simplified serviceability in compact control panels.
Yes. The BAB2040D is UL Listed and CSA Certified, confirming compliance with widely recognized safety standards. These certifications simplify procurement for regulated facilities and support cross-border deployments, reducing qualification time during audits and ensuring alignment with industry best practices for electrical protection equipment.
Ideal for control panels, motor circuits, and distribution boards in manufacturing and process environments, the BAB2040D offers reliable overload and short-circuit protection. Its HACR rating also supports HVAC-related applications, making it suitable for facilities with mixed electrical load profiles while maintaining regulatory compliance and energy reliability.
A 10 kAIC interrupt rating means the breaker can safely interrupt high-energy fault currents, reducing fault energy and protecting conductors, equipment, and personnel. This capability is crucial for preventing damage during faults in machines, conveyors, and power distribution, contributing to safer maintenance windows and longer equipment life.
The BAB2040D carries a 1-year warranty, reflecting Eaton’s confidence in its durability. For ROI, rely on its low-maintenance design, solid fault protection, and simple bolt-on installation to minimize downtime during replacements. Regular visual inspections and periodic testing per site maintenance practices are advised to maintain peak protection performance.