Eaton BAB2045S1 Thermal Magnetic Circuit Breaker - UL Listed HACR Rated
Part Number: BAB2045S1
Quick Summary
Eaton BAB2045S1 thermal magnetic circuit breaker provides reliable overcurrent protection for industrial control panels. Designed for bolt-on mounting in compact enclosures, it helps minimize nuisance trips and unplanned downtime that plague mission-critical equipment. UL Listed and CSA Certified with HACR rating ensure compliance across North American installations, while a 10 kAIC interrupt level supports high fault current environments. Coupled with 45 A protection and 24/48 V DC shunt trip, this device supports scalable safety strategies and streamlined maintenance in automation and machinery applications. Its compact 5 in × 3 in × 1 in footprint, 0.5 lb weight, and 1-year warranty simplify spare-part planning and field replacements for engineering teams.
Product Information
Extended Description
BAB2045S1 Eaton: Quicklag Industrial Thermal-Magnetic Circuit Breaker, Two-pole, 24,48V/dc shunt trip, 45A, 10 kAIC, 120/240V, Non-Interchangeable
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BAB2045S1
UPC
786679369883
Product Length/Depth
5 in
Product Height
1 in
Product Width
3 in
Product Weight
0.5 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
Thermal magnetic circuit breakers
Amperage Rating
45 A
Interrupt rating
10 kAIC
Trip Type
Non-Interchangeable
Voltage rating
120/240 V
Quantity
7
Special features
24,48V/dc shunt trip
Feature → Business Impact → Application: Two-pole bolt-on design simplifies installation, reduces panel depth requirements, and speeds field replacements, cutting downtime and labor costs in new builds and retrofits. Application: control stations, conveyors, and machine panels benefit from fast, secure mounting without special hardware. Feature → Business Impact → Application: 45 A nominal rating with a 10 kAIC interrupt capacity delivers reliable protection for moderate loads while tolerating high fault currents, reducing fuse/breaker churn and protecting downstream equipment. Application: automation panels and power feeders in manufacturing lines. Feature → Business Impact → Application: 120/240 V voltage rating ensures compatibility with standard European and North American systems, simplifying procurement and reducing wiring errors. Application: power distribution blocks and switchgear assemblies. Feature → Business Impact → Application: 24/48 V DC shunt trip provides remote trip capability for safety interlocks and emergency stops, improving safety coordination in machine rooms and robotics cells. Application: programmable logic controllers and safety circuits. Feature → Business Impact → Application: HACR rating, UL Listed, CSA Certified verify compliance and reliability, supporting audits and long-term maintenance planning. Application: HVAC controls, lighting panels, and industrial controls with strict safety standards.
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FAQs
Yes. The BAB2045S1 uses a bolt-on mounting method which aligns with standard electrical panels and control enclosures. This design simplifies field installation, reduces the need for specialized hardware, and enables quick, secure mounting on flat surfaces. For best results, verify panel clearance and torque specifications per Eaton guidance during commissioning.
The device is rated for 120/240 V AC operation with a 45 A nominal rating and a 10 kAIC interrupt capacity, suitable for typical automation feeders and motor circuits. It also features a 24/48 V DC shunt trip for remote disengagement, enabling safe integration with safety interlocks and control systems, especially in DC control environments.
The BAB2045S1 is appropriate for motor control panels and feeder protection where moderate currents and high fault-current conditions are expected. Its 45 A rating and 10 kAIC interrupt capacity provide reliable short-circuit protection while the DC shunt trip adds a safety layer for motor-related safety circuits and remote trip scenarios.
The BAB2045S1 is UL Listed and CSA Certified, with HACR rating for heating, air conditioning, and refrigeration equipment. These certifications support regulatory compliance in North America, simplify audit readiness, and ensure compatibility with safety and energy management standards in industrial facilities.
Expect lower maintenance due to solid-state thermal-magnetic design and reliable trip characteristics. The 1-year warranty provides initial protection against manufacturing defects, while the 10 kAIC interrupt rating helps prevent nuisance trips under fault events. Over time, predictable performance reduces downtime, extends equipment life, and lowers total cost of ownership in automation ecosystems.