Eaton LGU4630NN Molded Case Circuit Breaker - UL Listed

Part Number: LGU4630NN
Manufacturer
Eaton
Part number
LGU4630NN

Quick Summary

The Eaton LGU4630NN molded case circuit breaker protects electrical distribution panels in industrial power systems. This LG-frame MCCB delivers reliable overcurrent protection for feeders, motors, and panelboards across challenging plants. Engineers often wrestle with nuisance trips, improper coordination, and rising heat in high-density electrical rooms. The LGU4630NN addresses these pain points with precise thermal/magnetic tripping and a robust four-pole design. It carries UL Listed, CSA Certified, and IEC Rated markings, providing confidence in multinational installations and regulatory compliance. With HACR-rating and CE Marking, this MCCB aligns with common building and industrial standards. The frame-only design and lack of terminals simplify installation in control panels and switchgear, while maintaining compatibility with Series G components for scalable protection portfolios.

Product Information

Extended Description

LGU4630NN Eaton: Eaton Series G molded case circuit breaker, LG-frame, LG, Fixed thermal, fixed magnetic trip, Four-pole, 630A, 600 Vac, 200 kAIC at 240 Vac, 150 kAIC at 415 Vac, 150 kAIC at 480 Vac, 65 kAIC at 600 Vac, No term., 0% protected neutral pole
Product Name
Eaton Series G molded case circuit breaker frame
Catalog Number
LGU4630NN
UPC
786685184593
Product Length/Depth
7.22 in
Product Height
7.22 in
Product Width
7.22 in
Product Weight
15.7 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.
Compliances
CE Marked
Certifications
UL Listed CSA Certified IEC Rated
Catalog Notes
LG breaker is HACR rated
Type
Complete breaker
Amperage Rating
630 A
Voltage rating
600 Vac
Trip Type
T186
Circuit breaker type
LG
Circuit breaker frame type
Frame only
Protection
0% protected neutral pole
Terminals
Without terminals
Frame
LG
Interrupt rating
150 kAIC at 480 Vac 150 kAIC at 415 Vac 65 kAIC at 600 Vac 200 kAIC at 240 Vac
Number of poles
Four-pole
Feature LG-frame four-pole design → Business Impact Enables full-phase protection and precise coordination across low- and medium-voltage feeders, reducing nuisance trips and improving panel reliability. Application Suitable for distribution panels and motor control centers in industrial plants. Feature 630 A amperage rating → Business Impact Supports high-load feeders with robust fault handling, enabling smaller panel footprints and fewer devices in parallel. Application Main feeders and large control circuits in manufacturing and process environments. Feature 600 Vac voltage rating → Business Impact Maintains consistent performance across diverse industrial environments, improving safety margins and compliance with standard installation practices. Application Control panels operating at grid or facility-level voltages. Feature 200 kAIC at 240 Vac / 150 kAIC at 415–480 Vac / 65 kAIC at 600 Vac interrupt ratings → Business Impact Delivers fast, reliable fault interruption to minimize damage and downtime, supporting uptime goals and insurance/compliance requirements. Application Motor control centers and switchgear subject to high fault currents. Feature HACR rated; CE Marked; UL Listed; CSA Certified; IEC Rated → Business Impact Ensures global applicability and formal safety certifications, simplifying cross-border projects and procurement. Application Panels deployed in multinational facilities and projects requiring stringent standards. Feature Without terminals; Frame LG → Business Impact Simplifies panel assembly and reduces installation time, enabling cleaner bus-bar integration and easier upgrades. Application Panelboards and control cabinets where terminalization is performed separately, or where bus-bar connections are preferred.

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FAQs

LGU4630NN is designed for integration into standard control panels and switchgear that accept LG-frame MCCBs. It is without terminals, so installation is streamlined when bus bars, lugs, or adapters are added in the panel’s terminal stage. Verify compatibility with Eaton Series G accessories and ensure your bus width, cross-rail spacing, and mounting provisions match the four-pole LG frame for reliable mounting and wiring clearance.
LGU4630NN provides a 630 A amperage rating, a 600 Vac voltage rating, and a trip type T186. Interrupt ratings include up to 200 kAIC at 240 Vac, 150 kAIC at 415/480 Vac, and 65 kAIC at 600 Vac. These specs support robust short-circuit protection for high-load feeders and motors in harsh industrial environments.
Yes. The four-pole LG-frame design with high interrupt ratings and HACR suitability makes LGU4630NN appropriate for motor control centers, switchboards, and HVAC control panels. Its LG-frame compatibility and UL/IEC/CSA certifications simplify deployment in automation and building systems, ensuring reliable motor protection and safe coordination with other MCCB and circuit protection devices.
LGU4630NN is UL Listed, CSA Certified, and IEC Rated, with CE Marking. These certifications support global deployments, regulatory compliance, and safer operation in multinational facilities. The HACR-rated designation further confirms suitability for HVAC and control-panel applications, aligning with common industry standards for electrical protection devices.
Maintenance focuses on regular inspection of panel connections, tripping functionality, and environmental conditions to sustain reliability. ROI comes from reduced downtime due to fast fault interruption (up to 200 kAIC at 240 Vac), longer device life with precise protection, and streamlined procurement via a UL/CSA/IEC-certified solution that fits into scalable protection strategies for industrial facilities.