Eaton BAB3040HI Thermal Magnetic Circuit Breaker - 10 kAIC
Part Number: BAB3040HI
Quick Summary
Eaton BAB3040HI thermal magnetic circuit breaker protects three-phase distribution panels in industrial facilities, delivering reliable overload and short-circuit protection for critical equipment. For engineers and maintenance teams, the challenge is selecting a device that prevents nuisance trips while fitting existing panel footprints and wiring schemes. UL Listed and CSA Certified with HACR rated performance, it meets rigorous electrical standards while simplifying service and maintenance. Bolt-on mounting and a robust 240 V three-phase design streamline retrofit projects, reducing downtime and total cost of ownership across expanding electrical systems.
Product Information
Extended Description
BAB3040HI Eaton: Eaton BAB thermal magnetic circuit breaker,Quicklag industrial thermal-magnetic circuit breaker,Bolt-on mounting,40 A,10 kAIC,Three-pole,240 V,Non-Interchangeable,Q32,BAB,120/208/240 V Shunt trip
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BAB3040HI
UPC
782114313121
Product Length/Depth
2.563 in
Product Height
3 in
Product Width
3 in
Product Weight
0.95 lb
Warranty
1 year
Compliances
HACR Rated
Certifications
UL Listed CSA Certified
Catalog Notes
HACR rated
Circuit breaker type
BAB
Number of poles
Three-pole
Number of wires
4
Type
Quicklag industrial thermal-magnetic circuit breaker
Amperage Rating
40 A
Interrupt rating
10 kAIC
Phase
Three-phase
Trip Type
T196
Voltage rating
240 V - 240 V
Quantity
32
Shunt trip
120-240V
Special features
Bolt-on mounting
Used with
Distribution panels 240 V (Three-phase, four-wire maximum)
Circuit Protection, Miniature Circuit Breakers and Supplementary Protectors, Volume 4, Tab 1
Circuit Breakers Explained
Eaton Specification Sheet - BAB3040HI
The BAB3040HI provides a 40 A amperage rating with a 10 kAIC interrupt capability, assuring fast fault clearance in 3-phase power networks. This performance minimizes nuisance trips during motor starts and protects sensitive equipment across industrial processes. Designed for 240 V distribution panels, it integrates with standard three-phase wiring to maintain continuous production.Bolt-on mounting simplifies retrofit projects by enabling direct panel mounting without custom hardware. The Quicklag industrial thermal-magnetic design provides precise, rapid trip response for motor and feeder protection. This translates to shorter commissioning cycles and lower field repair costs in new builds or upgrades.Shunt trip capability rated at 120-240 V enables remote-trip control for safety interlocks and emergency stops. This feature supports coordinated shutdowns in complex electrical rooms while maintaining compliance with energy management requirements. Compatibility with control circuits simplifies integration with BMS and PLC-based protection schemes.UL Listed and CSA Certified status confirms compliance with global electrical standards for industrial protection devices. HACR rated performance ensures safe operation in HVAC and other appliances. Together, these certifications reduce procurement risk and support regulatory acceptance in diverse markets.Compact dimensions (3 x 3 in), light weight (0.95 lb), and a 1-year warranty simplify inventory, shipping, and service planning. The BAB3040HI’s compatibility with 240 V three-phase systems and four-wire distributions minimizes integration challenges and ensures reliable uptime.
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FAQs
When installing the BAB3040HI, ensure compatibility with 240 V three-phase panels and four-wire configurations. Use the bolt-on mounting for direct panel attachment, verify clearance for front access during maintenance, and confirm shunt-trip wiring if remote triggering is required. The device should be mounted in a manner that facilitates easy terminal access and safe wiring practices.
The 10 kAIC interrupt rating provides a high fault-current carrying capability, enabling rapid opening of the circuit during short-circuit events. This reduces arcing duration, minimizes equipment damage, and lowers downtime in motors and feeders. It also supports coordination with upstream protection devices to maintain system reliability in industrial environments.
Yes. The BAB3040HI is designed for 3-phase, 4-wire systems and 240 V distribution panels. Its three-pole construction aligns with typical 4-wire layouts, and the shunt-trip option adds remote trip capability to accommodate safety interlocks in complex installations.
This device carries UL Listed and CSA Certified status, with HACR rated performance for HVAC and related equipment. These certifications support regulatory compliance, facilitate supplier qualification, and reduce procurement risk across North American and global projects.
Expect lower downtime due to reliable fault clearance, easier retrofits with bolt-on mounting, and predictable maintenance costs thanks to standard catalog parts and a 1-year warranty. The device’s compact footprint and compatibility with common 240 V panels simplify inventory management and long-term total cost of ownership.