ABB SU UL489 Miniature Circuit Breaker, CSA/UL Listed
The ABB SU UL489 Miniature Circuit Breaker is engineered to deliver dependable overcurrent protection for branch circuits in commercial, industrial, and light-duty electrical systems. This breaker series is offered across a range of amperage options from 2 amperes to 60 amperes, with a choice of C or K trip type, allowing electrical contractors and facility managers to select the exact protection profile for a given panelboard or distribution application. As a miniature circuit breaker (MB), every option in this family is designed to automatically interrupt current flow during an overload or fault condition, helping safeguard wiring, panelboards, and connected equipment from damage. This breaker meets CSA 22.2 No. 5, IEC/EN 60947-2, and UL 489 standards across the full amperage and trip-type range, giving electrical professionals confidence that it has been evaluated against recognized North American and international safety benchmarks. ABB's engineering background stands behind the design, construction, and testing of this circuit protection device, making it a practical choice for new installations, panel upgrades, and maintenance replacements alike. Each unit ships individually packaged for easy handling on the jobsite or in inventory, regardless of the amperage or trip type selected.
Key Features
- Circuit Protection Type: UL489 Miniature Circuit Breaker (MB) built to provide reliable branch-circuit overcurrent protection in electrical distribution equipment.
- Amperage Range: Available in 2, 6, 8, 16, 30, and 60 ampere ratings to match a wide variety of branch-circuit load requirements.
- Trip Type Options: Offered in C and K trip curve configurations, supporting different inrush and fault-response characteristics for the connected load.
- Multi-Standard Compliance: Certified to CSA 22.2 No. 5, IEC/EN 60947-2, and UL 489, confirming the breaker has been evaluated to recognized North American and international electrical safety standards.
- Engineered Reliability: Designed and manufactured under ABB's electrical engineering standards for consistent, repeatable performance across the product family.
- Simple Stocking & Replacement: Packaged individually (1 ea), making it straightforward to stock, order, and swap in as a direct replacement during maintenance or panel service.
- Documented Compliance: Manufacturer specification documentation is available for reference, supporting code-compliance verification and submittal requirements on commercial and industrial projects.
Certifications & Compliance
- UL 489 Listed
- CSA 22.2 No. 5 Compliant
- IEC/EN 60947-2 Compliant
Technical Specifications
- Standard: CSA 22.2 No. 5 / IEC/EN 60947-2 / UL 489
- IGCC: 4899
- Amperage Options: 2A, 6A, 8A, 16A, 30A, 60A
- Trip Type Options: C, K
- Packaging: 1 ea
Typical Applications
- Branch Circuit Overcurrent Protection
- Commercial and Industrial Panelboards
- Load Center and Distribution Panel Wiring
- Panel Upgrades and Maintenance Replacements
- Renovation and New Construction Electrical Projects
Why ABB?
ABB is a globally recognized manufacturer of electrical distribution equipment, and this UL489 Miniature Circuit Breaker series reflects that engineering discipline through its compliance with CSA 22.2 No. 5, IEC/EN 60947-2, and UL 489 across its full amperage and trip-type range. For electrical professionals who need dependable, code-compliant circuit protection backed by an established manufacturer, this breaker family is a practical fit for panelboards and distribution equipment across commercial and industrial projects.
Manufacturer Resources
Product Specs
- Product Type:
- Circuit Breaker
- Listing:
- UL Listed
- Standards:
- UL 489
- Department:
- Electrical
- Product Group:
- Circuit Protection
- Amperage Rating:
- 2A - 60A
- Product Subgroup:
- Circuit Breakers