Eaton BAB2055S1 Thermal Magnetic Circuit Breaker - HACR
Part Number: BAB2055S1
Quick Summary
The Eaton BAB2055S1 thermal magnetic circuit breaker protects electrical circuits in industrial control panels, with two poles and a 55 A rating. Engineers often contend with nuisance trips and misconfigured protection settings that drive downtime and maintenance costs. CSA Certified and UL Listed with HACR rating, the unit meets common compliance requirements for commercial and industrial environments. Bolt-on installation and a 120/240 V rating streamline retrofits in existing panels, while the 24/48 V DC shunt trip option supports remote trips in automation systems. In practice, this translates to safer, more reliable power protection with reduced total cost of ownership for control cabinets and machinery.
Product Information
Extended Description
BAB2055S1 Eaton: Quicklag Industrial Thermal-Magnetic Circuit Breaker, Two-pole, 24,48V/dc shunt trip, 55A, 10 kAIC, 120/240V, Non-Interchangeable
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BAB2055S1
UPC
786679377109
Product Length/Depth
5 in
Product Height
1 in
Product Width
3 in
Product Weight
0.5 lb
Warranty
1 year
Certifications
CSA Certified UL Listed
Catalog Notes
HACR rated
Circuit breaker type
BAB
Mounting Method
Bolt-on
Number of poles
Two-pole
Type
Thermal magnetic circuit breakers
Amperage Rating
55 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: The BAB2055S1 uses a two-pole design with bolt-on mounting, delivering robust circuit protection while simplifying panel upgrades and replacements in existing installations. This translates to faster commissioning, reduced labor costs, and lower risk of wiring errors during retrofits in automation and power distribution applications. Real-world use cases include control panels for conveyors and machine tooling where space efficiency and reliable trip performance are critical. The 55 A rating and 10 kAIC interrupt capability enable dependable fault clearance for moderate-to-heavy loads, reducing downtime and protecting downstream equipment. In automation environments, the DC shunt trip of 24/48 V supports remote-trip safety interlocks, enhancing operator protection and system safety without sacrificing responsiveness. This design also aligns with CSA UL HACR standards, helping you stay compliant across multiple jurisdictions while maintaining consistent protection across mechanical and electrical interfaces. Its compact footprint and lightweight profile ease mounting in crowded panels and retrofits, supporting faster upgrades and predictable maintenance cycles.
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FAQs
The BAB2055S1 uses a bolt-on mounting method and is a two-pole device with a 5 inch depth, 3 inch width, and 1 inch height footprint. Ensure panel cutouts align with the device mounting dimensions, secure the breaker with mounting hardware, and connect line/load conductors per the UL/CSA wiring diagrams. This approach reduces installation time and minimizes wiring errors in industrial cabinets.
The BAB2055S1 is rated for 55 A with a 10 kAIC interrupt rating, suitable for 120/240 V systems. It also features a 24/48 V DC shunt trip for remote trip capabilities. The device is designed as a non-interchangeable, two-pole thermal-magnetic breaker, providing reliable protection for medium-load circuits in automation panels.
Yes, the BAB2055S1 is HACR rated, meaning it’s approved for use with motors and motor-driven equipment. It carries CSA Certification and UL Listing, ensuring compliance with North American electrical safety standards for industrial applications and control panels.
This two-pole thermal-magnetic breaker is ideal for control panels, motor control circuits, and power distribution sections in automation environments. Its bolt-on mounting, DC shunt trip option, and 120/240 V rating make it suitable for machine builders, conveyors, and robotics installations that require reliable protection, quick fault clearance, and straightforward retrofits.
With a 1-year warranty and a robust 10 kAIC interrupt rating, the BAB2055S1 offers low maintenance risk and predictable protection. Its compact footprint saves panel space and reduces enclosure costs, while compliant certifications minimize regulatory review time during audits. Operators typically experience reduced nuisance trips and improved uptime, contributing to lower total cost of ownership over the equipment lifecycle.