Eaton BAB2040S1 Circuit Breaker - UL Listed, CSA Certified
Part Number: BAB2040S1
Quick Summary
The Eaton BAB2040S1 thermal magnetic circuit breaker protects two-pole circuits in industrial control panels. A common pain point is nuisance trips or unreliable remote-tripping in systems that require DC shunt-trip control. This device carries UL Listed and CSA Certified approvals and is HACR rated, with a 10 kAIC interrupt rating and 120/240 V mains, plus a 24/48 V DC shunt trip option. For panel builders and OEMs, the compact 5 in x 3 in x 1 in footprint, bolt-on mounting, and 0.5 lb weight simplify installation in tight spaces while maintaining robust protection across standard industrial environments. The BAB2040S1 is well suited for space-constrained panels demanding dependable protection with straightforward compliance.
Product Information
Extended Description
BAB2040S1 Eaton: Quicklag Industrial Thermal-Magnetic Circuit Breaker, Two-pole, 24,48V/dc shunt trip, 40A, 10 kAIC, 120/240V, Non-Interchangeable
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BAB2040S1
UPC
786679369807
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
40 A
Interrupt rating
10 kAIC
Trip Type
Non-Interchangeable
Voltage rating
120/240 V
Quantity
7
Special features
24,48V/dc shunt trip
Feature: Two-pole thermal magnetic operation provides fast, coordinated protection for motor and control circuits. Business impact: Reduces nuisance trips and limits arc fault risk, enabling more reliable system uptime in manufacturing lines and equipment racks. Application: Ideal for panel feeders and MCCs where both AC and DC shunt-trip control are required. Feature: 24/48 V DC shunt trip capability adds remote trip functionality for enhanced safety. Business impact: Improves machine safety interlocks and emergency shutdown coordination, meeting safety policies without added operator intervention. Application: Suitable for automated lines and safety-critical machinery that rely on DC control logic. Feature: 40 A rating with a 10 kAIC interrupt capacity delivers strong protection for typical industrial loads while maintaining selectivity. Business impact: Minimizes conductor damage and downtime during fault events, lowering maintenance costs over the life of the panel. Application: Panel feeders, coil and motor control circuits in harsh environments. Feature: UL Listed and CSA Certified with HACR rating ensures conformance to global standards. Business impact: Simplifies compliance documentation and reduces panel rework for code-adherence, accelerating approvals in regulated facilities. Application: New builds and retrofit projects in manufacturing, HVAC, and process industries. Feature: Bolt-on mounting and compact footprint (5 in x 3 in x 1 in) with 0.5 lb weight support quick, tool-friendly installation. Business impact: Lowers installation time and labor costs, enabling easier retrofits in existing enclosures. Application: Space-constrained electrical panels and control cabinets where dimensional fit matters.
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FAQs
The BAB2040S1 uses a bolt-on mounting method and is designed for standard industrial panels. Its compact footprint (5 in length x 3 in width x 1 in height) helps fit in space-constrained enclosures. Ensure adequate clearance for wiring and service access, and follow manufacturer guidelines for panel depth and fastener torque to maintain a secure, code-compliant installation.
The device is a two-pole thermal-magnetic circuit breaker rated at 40 A with an interrupt capacity of 10 kAIC, and a voltage rating of 120/240 V. It features a 24/48 V DC shunt trip option for remote signaling, and a non-interchangeable trip characteristic to preserve specific protection settings within a panel.
Yes. The BAB2040S1 includes a 24/48 V DC shunt trip, making it suitable for DC control circuits and safety interlock scenarios. It is commonly used in industrial control panels, motor control centers (MCCs), and equipment racks where reliable overcurrent protection and remote trip capability are required.
The BAB2040S1 is UL Listed and CSA Certified and HACR rated. These certifications verify compliance with safety and performance requirements for electrical protection devices in North American facilities, aiding regulator approvals and reducing compliance risk during panel fabrication.
The BAB2040S1 offers dependable protection with a 1-year warranty and a compact bolt-on design that simplifies retrofits. Its 10 kAIC capability minimizes fault-related downtime, while the shunt-trip option supports enhanced safety interlocks. Combined, these features reduce maintenance costs and improve panel reliability over time.