Eaton BAB2125S Circuit Breaker - UL Listed CSA Certified
Part Number: BAB2125S
Quick Summary
The BAB2125S circuit breaker from Eaton provides reliable overcurrent protection for 2-pole industrial panels and switchgear. When downtime costs productivity, a stable trip profile and fast reset are crucial. It carries CSA Certified and UL Listed marks, ensuring safety and compliance in industrial environments. The design aligns with bolt-on installations for robust, field-friendly protection, while a 125 A rating and 240 V operating range support a wide range of equipment. Its shunt-trip option adds remote disconnect capability for critical safety scenarios, reducing mean time to repair. Engineers rely on its clear labeling, compact footprint, and documented datasheet for fast, compliant panel designs.
Product Information
Extended Description
BAB2125S Eaton: Quicklag Industrial Thermal-Magnetic Circuit Breaker, 120, 208, 240V shunt trip, 125A, Bolt-on, Non-interchangeable trip, Two-pole, 240V rating, 10 kAIC
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BAB2125S
UPC
786679377543
Product Length/Depth
3.9 in
Product Height
4.8 in
Product Width
2.2 in
Product Weight
1 lb
Warranty
1 year
Certifications
CSA Certified UL Listed
Circuit breaker type
BAB
Mounting Method
Bolt-on
Number of poles
Two-pole
Type
Quicklag industrial thermal-magnetic circuit breaker
Amperage Rating
125 A
Interrupt rating
10 kAIC
Trip Type
Non-interchangeable
Voltage rating
240 V - 240 V
Shunt trip
120-240V
Thermal-magnetic protection combines fast reaction to overloads with stable performance across 120–240V systems used in industrial settings. This arrangement reduces nuisance trips, improves circuit selectivity, and minimizes unplanned downtime in motor starts and equipment racks. For panel builders, the BAB2125S delivers predictable coordination with a wide operating window while staying compact. The shunt trip option provides remote disconnect capability, which enhances safety during maintenance and emergency shutdowns. In practice, it supports compliant lockout/tagout procedures and rapid isolation of critical loads on manufacturing lines and data centers. Wiring is straightforward within bolt-on, two-pole assemblies and integrates with standard control circuits. Bolt-on mounting combined with a two-pole design streamlines retrofits and new installations alike. The mechanical footprint fits compact switchgear and control panels, while the bolt-on method reduces hand-tightening time and simplifies field service. Engineers appreciate the clear labeling and robust enclosure fit that helps maintain panel integrity. With a 125 A amperage rating and 240 V voltage rating, the unit handles typical industrial feeders and machine circuits, backed by a 10 kAIC interrupt capacity for high fault events. The non-interchangeable trip preserves protection coordination, avoiding mismatched devices in multi-breaker panels. The 3.9 x 4.8 x 2.2 inch form and 1 lb weight support flexible layout without increasing cabinet depth. CSA Certified and UL Listed marks provide regulatory confidence, while the one-year warranty and Eaton datasheet support procurement and lifecycle planning. The included specifications sheet and video resource help design teams specify the BAB2125S with confidence across projects.
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FAQs
Yes. The BAB2125S is a two-pole, bolt-on thermal-magnetic breaker designed for standard industrial panels. It supports 125 A at 240 V with a 10 kAIC interrupt rating and offers an optional 120–240 V shunt trip. For retrofit or new builds, ensure adequate mounting space, proper bus bar alignment, and enclosure compatibility to maintain safe wiring and serviceability.
Key specifications include a 125 A amperage rating, 240 V voltage rating, 10 kAIC interrupt capacity, and a non-interchangeable trip type. It features a bolt-on mounting method and a shunt trip option (120–240 V), enabling remote disconnection when safety or process requirements demand it.
The BAB2125S provides reliable overcurrent protection suitable for motor control panels and feeders in industrial settings. While it supports motor-related protection, consult your motor starter coordination and inrush characteristics to confirm compatibility with your specific motor load and starting profile.
The device carries CSA Certified and UL Listed marks, validating compliance with recognized North American electrical safety standards. This makes it suitable for global deployment where these certifications are required for panel builds and safety approvals.
With its durable bolt-on design and well-documented datasheet, maintenance is straightforward and downtime is minimized. The 1-year warranty plus reliable electrical performance reduces replacement frequency and supports lifecycle cost planning, helping protect investments in control panels and machine protection across multiple projects.