Eaton LHH3300FFG Moulded Case Breaker - UL Listed
Part Number: LHH3300FFG
Quick Summary
Eaton LHH3300FFG molded case circuit breaker protects electrical systems in enclosure-based power distributions across industrial facilities. In demanding plant environments, improper protection and nuisance trips can trigger downtime, damage equipment, and inflate maintenance costs. This unit carries UL Listed credentials, reinforcing adherence to global electrical safety standards. For control panels and motor circuits, the Series G LG-frame design delivers precise protection with easy field upgrades, metric mounting hardware, and reliable line-and-load terminations. By combining high interrupt ratings with compact dimensions, it supports safer, more compact switchgear installations while enabling selective coordination and reduced spare parts inventory.
Product Information
Extended Description
LHH3300FFG Eaton: Eaton Series G molded case circuit breaker, LG-frame, LH, Fixed thermal, fixed magnetic trip, Three-pole, 300A, 600 Vac, 100 kAIC at 240 Vac, 70 kAIC at 415 Vac, 65 kAIC at 480 Vac, 35 kAIC at 600 Vac, Line and load, Metric
Product Name
Eaton Series G complete molded case circuit breaker
Catalog Number
LHH3300FFG
UPC
786685227092
Product Length/Depth
15.75 in
Product Height
7.13 in
Product Width
7.75 in
Product Weight
16.25 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed CSA Certified
Catalog Notes
LG breaker is HACR rated
Type
Complete breaker
Amperage Rating
300 A
Voltage rating
600 Vac
Trip Type
T186
Circuit breaker type
LH
Circuit breaker frame type
Complete breaker
Terminals
Line and load
Frame
LG
Mounting hardware
Metric
Interrupt rating
65 kAIC at 480 Vac 100 kAIC at 240 Vac 70 kAIC at 415 Vac 35 kAIC at 600 Vac
Number of poles
Three-pole
Application of Tap Rules to Molded Case Breaker Terminals
Application of Tap Rules to Molded Case Breaker Terminals
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Breaker service centers
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Eaton Specification Sheet - LHH3300FFG
Eaton Specification Sheet - LHH3300FFG
Eaton Specification Sheet - LHH3300FFG
Feature: 300 A amperage rating and 600 Vac voltage rating. Business impact: Handles high-load motor and equipment protection while maintaining safe operation in standard industrial power distribution. Application: Suitable for panel boards and distribution blocks in manufacturing lines and process controls. Feature: Three-pole LG-frame, complete breaker. Business impact: Ensures robust three-phase protection with coordinated trip performance, reducing the likelihood of shared faults causing cascading outages. Application: Motor control centers and control panels requiring reliable phase protection. Feature: Trip type T186 with fixed thermal and fixed magnetic trip. Business impact: Fast and predictable fault clearing, minimizing arc flash exposure and equipment damage. Application: Applications demanding precise, code-compliant overcurrent protection in BMS and PLC-driven systems. Feature: High interrupt ratings—65 kAIC at 480 Vac, 100 kAIC at 240 Vac, 70 kAIC at 415 Vac, 35 kAIC at 600 Vac. Business impact: Supports selective coordination and fast outage isolation across varying supply voltages. Application: Critical power distribution where downtime costs are high. Feature: Line and load terminals with metric mounting. Business impact: Simplifies field wiring and panel integration while enabling compact, space-efficient layouts. Application: Retrofit projects and new panel builds with standardized metric hardware. Feature: Certifications UL Listed; HACR rated; CSA Certified. Business impact: Demonstrates compliance with safety standards, enabling easier procurement and audit readiness. Application: Global markets requiring validated protection devices for motors, lighting, and control circuits.
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FAQs
The LHH3300FFG uses metric mounting hardware and line-and-load terminals, simplifying panel integration. Its LG-frame, three-pole design fits standard MCCBs in control panels, enabling consistent torque and secure cable terminations. Ensure clearance for rear-terminal access and follow UL guidelines for wiring torques to maintain protection integrity.
Key specs include 300 A amperage rating, 600 Vac maximum voltage, trip type T186, and three-pole configuration. Interrupt ratings are 65 kAIC at 480 Vac, 100 kAIC at 240 Vac, 70 kAIC at 415 Vac, and 35 kAIC at 600 Vac, which support selective coordination and fast fault isolation in varied applications.
Yes. The unit’s three-pole LG-frame design with fixed thermal and magnetic trip is ideal for motor protection, offering robust short-circuit protection and coordinated trip behavior. In MCCs, it helps prevent nuisance trips and minimizes downtime while meeting HACR requirements for motor circuits.
The LHH3300FFG is UL Listed and CSA Certified, with HACR rating notes in catalog data. These certifications confirm compliance with recognized safety and performance standards, facilitating procurement, audits, and cross-border installation in industrial facilities.
Investing in the LHH3300FFG can reduce downtime through reliable protection, enable selective coordination to limit outages, and simplify maintenance with standardized metric mounting. Its high interrupt ratings and robust build quality translate to lower replacement and maintenance costs over the equipment life cycle.