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Eaton Type LA Tri-Pac Thermal-Magnetic Circuit Breaker, Trip Unit Only, Three-Pole, 600 Vac/250 Vdc
The Eaton Type LA Tri-Pac Thermal-Magnetic Circuit Breaker is a three-pole trip unit designed for demanding industrial and commercial power distribution applications. This trip-unit-only breaker, supplied without terminals, features an interchangeable thermal-magnetic trip mechanism with an 875-1750A trip range and is rated 600 Vac / 250 Vdc. Backed by a 200 kAIC interrupt rating at 600 Vac and 100 kAIC at 250 Vdc, this UL 489 listed breaker delivers dependable fault protection for LA-frame installations and panelboard retrofits where precise, adjustable overcurrent protection is required.
Key Features
- Configuration: Three-pole trip unit only, supplied without terminals for use in compatible Type LA circuit breaker frames.
- Voltage Rating: 600 Vac / 250 Vdc rating supports versatile AC and DC circuit protection applications.
- Trip Type: Interchangeable thermal-magnetic trip unit with an adjustable 875-1750A trip range for field-configurable overcurrent settings.
- Interrupt Rating: 200 kAIC at 600 Vac and 100 kAIC at 250 Vdc for high fault-current withstand capability in demanding installations.
- Frame Type: Type LA Tri-Pac trip unit frame engineered for compatibility with LA-series circuit breakers.
- Dimensions: 5.3 in wide x 5.3 in high x 10.1 in long/deep for a compact, space-efficient footprint in switchgear and panelboards.
- Certification: UL 489 listed for code-compliant circuit protection in commercial and industrial systems.
Certifications & Compliance
- UL 489 Listed
Technical Specifications
- Circuit breaker type: LA
- Department: Electrical
Typical Applications
- Industrial and Commercial Power Distribution Systems
- Panelboard and Switchgear Retrofits and Upgrades
- Motor Control Center and Feeder Protection Circuits
- Combined AC and DC Circuit Protection Applications
- Replacement and Upgrade of Existing LA-Frame Circuit Breakers
- New Construction and Industrial Electrical Installations
Why Eaton?
Eaton's Type LA Tri-Pac circuit breaker trip unit combines an interchangeable thermal-magnetic trip mechanism with high interrupt ratings of 200 kAIC at 600 Vac and 100 kAIC at 250 Vdc, delivering reliable, adjustable protection for demanding electrical systems. The 875-1750A trip range gives specifiers flexibility to match protection settings to the application, while UL 489 listing ensures this trip unit meets recognized safety standards for professional, code-compliant installations across industrial and commercial facilities.
Manufacturer Resources
Product Specs
- Product Width:
- 5.3 in
- Voltage Rating:
- 600 Vac / 250 Vdc
- Product Length/Depth:
- 10.1 in
- Circuit breaker frame type:
- Trip unit
- Product Height:
- 5.3 in
- Product Type:
- Circuit Breaker
- Number of poles:
- Three-pole
- Circuit breaker type:
- LA
- Trip Type:
- Interchangeable thermal-magnetic
- Certifications:
- UL 489
- Department:
- Electrical
- Configuration:
- Three-Pole
- Amperage Rating:
- 875-1750A
- Standards:
- UL 489
- Product Group:
- Circuit Breakers