Eaton BAB2040S Thermal Magnetic Circuit Breaker - HACR Rated
Part Number: BAB2040S
Quick Summary
The Eaton BAB2040S thermal magnetic circuit breaker protects industrial panels by interrupting fault currents across two poles. When panel downtime is caused by nuisance trips or unclear fault indications, reliable, well-documented trip characteristics matter. UL Listed and CSA Certified with HACR rating provide confidence for commercial and industrial installations requiring strict compliance, while bolt-on mounting simplifies retrofit and maintenance. This device's 40 A rating, 120/240 V capability, and 10 kAIC interrupt rating translate to predictable protection, faster approvals, and lower total cost of ownership. In short, it combines robust electrical protection with installation efficiency and long-term reliability for demanding environments.
Product Information
Extended Description
BAB2040S Eaton: Eaton Quicklag Industrial Thermal-Magnetic Circuit Breaker, Two-pole, 120V, 208V, 240V shunt trip, 40A, 10 kAIC, 120/240V, Non-Interchangeable, Bolt-on mounting
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BAB2040S
UPC
786679369784
Product Length/Depth
3.8 in
Product Height
4.9 in
Product Width
3.2 in
Product Weight
0.95 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 mounting
Feature → Business Impact → Application: The BAB2040S employs a two-pole thermal-magnetic trip mechanism that rapidly clears faults while minimizing nuisance trips, reducing equipment damage and unplanned downtime in production lines and processing plants. This translates to improved uptime and lower maintenance costs in mission-critical machinery. Feature → Business Impact → Application: Bolt-on mounting enables straightforward field upgrades and panel upgrades, cutting installation time and minimizing retrofit disruption in control cabinets and motor starter assemblies. Feature → Business Impact → Application: A 40 A, 120/240 V rating supports common industrial loads with predictable protection, while the optional shunt-trip capability adds remote-disconnect control for safety interlocks in automated systems. Feature → Business Impact → Application: A 10 kAIC interrupt rating provides robust fault current handling in high-energy industrial environments, improving equipment protection and reducing the likelihood of catastrophic failures in switchgear and MCCs. Feature → Business Impact → Application: UL Listed and CSA Certified, with HACR rating, streamline compliance reporting and regulatory approvals for HVAC, machine control, and process equipment installations, reducing project risk and accelerating commissioning.
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FAQs
The BAB2040S uses bolt-on mounting for straightforward panel integration. Start by powering down the panel, then remove the existing breaker, align the device with the mounting points, and secure it to the rail or backplane as specified. Connect the line and load conductors per the wiring diagram, verify the two-pole configuration, and test the trip function with a calibrated source. This approach minimizes downtime and ensures a clean, code-compliant installation.
Key specs include a 40 A amperage rating, 120/240 V voltage rating, 10 kAIC interrupt capacity, two-pole configuration, and bolt-on mounting. The device is HACR rated and UL Listed CSA Certified, with optional shunt-trip capability. Dimensions are approximately 3.8 in (L) × 3.2 in (W) × 4.9 in (H), and weight is ~0.95 lb, which informs enclosure space planning and retrofit timelines.
Yes. The BAB2040S is HACR-rated and UL Listed/CSA Certified, making it suitable for HVAC equipment, machine control panels, and other industrial loads. Its 120/240 V two-pole configuration and 40 A rating align with common industrial circuits, while the 10 kAIC interrupt capacity provides robust fault protection in high-energy environments.
The BAB2040S carries UL Listed and CSA Certified markings, along with HACR rating. UL and CSA certifications indicate compliance with widely recognized safety and performance standards, which simplifies procurement, accelerates regulatory approvals, and enhances overall system reliability in regulated industrial settings.
Using the BAB2040S can reduce downtime from nuisance trips and short-circuit faults, thanks to its fast-responding thermal-magnetic mechanism and high interrupt capacity. Its bolt-on design speeds installation and retrofit projects, while UL/CSA certifications and HACR rating minimize compliance risk, leading to faster commissioning and longer service intervals, improving overall total cost of ownership.