Eaton LI3700W Molded Case Circuit Breaker - UL Listed

Part Number: LI3700W
Manufacturer
Eaton
Part number
LI3700W

Quick Summary

LI3700W molded case circuit breaker from Eaton provides reliable overcurrent protection for industrial electrical panels and power distribution centers. Engineers often wrestle with nuisance trips, improper amperage selection, and inconsistent fault current; this unit’s fixed thermal and fixed magnetic trip curves help ensure selective, dependable protection across diverse load profiles. UL Listed and International class certifications support global compliance and risk reduction in installations from manufacturing floors to process plants. Compact, Series-C compatible design plus universal application makes it a practical choice for panel builders seeking reliable protection, ease of integration, and a clear path to compliance.

Product Information

Extended Description

LI3700W Eaton: Eaton Series C complete molded case circuit breaker, L-frame, LI, Complete breaker, Fixed thermal, fixed magnetic trip, Three-pole, 700A, 480 Vac, 42 kAIC at 240 Vac, 35 kAIC at 480 Vac, Without terminals, International
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
LI3700W
UPC
786679008065
Product Length/Depth
0.01 in
Product Height
0.01 in
Product Width
0.01 in
Product Weight
0.01 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
Application
Universal
Amperage Rating
700 A
Voltage rating
480 Vac
Trip Type
T186
Circuit breaker type
LI
Circuit breaker frame type
Complete breaker
Terminals
Without terminals
Frame
L
Class
International
Accessories
Line and load bus extensions
Interrupt rating
35 kAIC at 480 Vac 42 kAIC at 240 Vac
Number of poles
Three-pole
700 A amperage rating with 480 Vac operation ensures the LI3700W can protect large feeders and main distribution panels, reducing the risk of overload. This translates to a tangible business impact: fewer unplanned outages and improved equipment lifespan. In practice, use this breaker in manufacturing lines or critical distribution boards where high fault currents may occur. Trip Type T186 is fixed thermal and fixed magnetic, delivering precise coordination and fast fault interruption. The business impact is improved selectivity, minimizing the scope of outages and reducing downtime for repairs. This is particularly beneficial in process plants and machine cells where precise segregation of perimeters is essential. Frame L, complete breaker design with three poles and no terminals, plus compatibility with line and load bus extensions allows streamlined installation. The business impact is faster panel assembly and easier retrofits, reducing installation time and training requirements. Typical applications include Series C systems in international installations and replacement of older MCCBs. Interrupt ratings of 35 kAIC at 480 Vac and 42 kAIC at 240 Vac provide robust short-circuit withstand. The business impact is higher system reliability and confidence in protection during peak fault conditions. Applications include large motors, pumps, and multi-panel farms in industrial facilities. Compliance and documentation, including UL Listed certification and extensive Eaton datasheets and application notes, support procurement and maintenance teams. The business impact includes simplified audits, easier warranty validation, and access to bus extensions and accessories for scalable protection. The LI3700W integrates with accessories and catalogs to match your installation needs.

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FAQs

The LI3700W is intended for universal use in industrial power distribution. It is a three-pole, 700 A device designed for Series C installations and can be integrated into standard distribution panels that require reliable overcurrent protection at 480 Vac. Compatibility with line and load bus extensions facilitates fast retrofits and panel expansions, reducing downtime during upgrades.
LI3700W employs fixed thermal and fixed magnetic trip (T186) to deliver predictable coordination and fast fault interruption. This design minimizes nuisance trips and enhances selectivity by restricting fault currents to the affected portion of the system, which is critical in multi-line distribution panels and motor feeder protection.
Yes. The LI3700W carries UL Listed certification and supports International class compliance, enabling global deployment across plants and facilities. This combination helps streamline audits, regulatory approvals, and cross-border procurement for multinational projects.
The LI3700W provides an interrupt rating of 35 kAIC at 480 Vac and 42 kAIC at 240 Vac. These ratings indicate strong short-circuit withstand capability for large feeders and motor circuits, supporting reliable operation in high-fault environments while enabling safer shutdowns and reduced arc energy.
When installing the LI3700W, consider that it is a complete, three-pole breaker designed for use with Series C configurations and without terminals. Plan for appropriate line and load bus extensions and consult Eaton catalogs for compatible accessories and mounting options to ensure a clean, scalable panel design with straightforward future upgrades.