Eaton LDC3300 Molded Breaker - UL 489

Part Number: LDC3300
Manufacturer
Eaton
Part number
LDC3300

Quick Summary

Eaton LDC3300 Molded Breaker is a complete molded-case circuit breaker for panel protection in industrial applications. Engineers often wrestle with selecting devices that deliver reliable protection, fast trip, and easy service in demanding environments. UL 489 certification ensures safety and performance in critical electrical protection services. Beyond compliance, this MCCB supports easy integration in Series C systems, enabling efficient spare-part management and predictable maintenance budgets. The compact L-frame design and line-and-load terminals simplify retrofit projects, while the aluminum terminals improve durability in harsh environments. With a 50/60 Hz frequency rating and a 300 A rating, it scales from small control panels to mid-size power distributions, delivering consistent protection and reduced downtime.

Product Information

Extended Description

LDC3300 Eaton: Eaton Series C complete molded case circuit breaker, L-frame, LDC, Fixed thermal, fixed magnetic trip, Three-pole, 300A, 600 Vac, 250 Vdc, 200 kAIC at 240 Vac, 100 kAIC at 480 Vac, Aluminum, Line and load, 50/60 Hz
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
LDC3300
UPC
786679046272
Product Length/Depth
8 in
Product Height
10 in
Product Width
10 in
Product Weight
21 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 489
Type
Complete breaker
Amperage Rating
300 A
Voltage rating
600 Vac, 250 Vdc
Trip Type
T186
Circuit breaker type
LDC
Circuit breaker frame type
Complete breaker
Series
Series C
Terminals
Line and load
Frame
L
Frequency rating
50 to 60 Hz
Terminal material
Aluminum
Interrupt rating
100 kAIC at 480 Vac 200 kAIC at 240 Vac
Number of poles
Three-pole
Feature: Three-pole L-frame design; Business Impact: enables robust protection for three-phase systems with a compact footprint, simplifying panel layouts and reducing enclosure space needs; Application: fits mid-size industrial control panels and power distribution racks. Feature: Fixed thermal and fixed magnetic trip (T186); Business Impact: delivers predictable protection against overloads and short circuits, lowering prognosis for equipment damage; Application: critical drives and motors in manufacturing lines. Feature: Aluminum line and load terminals; Business Impact: improves durability and corrosion resistance in harsh environments, reducing maintenance costs; Application: outdoor and damp environments where terminals encounter exposure. Feature: Series C compatibility; Business Impact: simplifies spare parts inventory and improves serviceability across existing installations; Application: retrofit projects and new builds within Eaton’s MCCB ecosystem. Feature: 8 in depth, 10 in width/height, 21 lb weight; Business Impact: easy handling and installation in tight spaces, enabling faster commissioning; Application: panel builders and field technicians working in constrained enclosures. Feature: 600 Vac / 250 Vdc ratings; Business Impact: supports versatile protection across AC and DC circuits, improving panel versatility; Application: general power distribution and machine control panels. Feature: UL 489 certification; Business Impact: provides industry-standard safety compliance, reducing audit risk and accelerating approvals; Application: regulatory-compliant installations in industrial facilities. These features collectively drive efficiency gains, lower lifecycle costs, and greater reliability for Eaton customers deploying Series C MCCBs in diverse industrial settings.

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FAQs

The LDC3300 is a three-pole, L-frame MCCB with line/load terminals and aluminum terminations designed for Series C panels. Its 8 in depth, 10 x 10 in footprint, and 21 lb weight simplify field replacement and retrofit compatibility with existing Eaton MCCB footprints.
This breaker provides 100 kAIC at 480 Vac and 200 kAIC at 240 Vac. It uses a fixed thermal and fixed magnetic trip (T186) to deliver reliable protection against overloads and short circuits in three-phase systems.
Yes. With 600 Vac and 250 Vdc ratings, three-pole configuration, and Series C compatibility, it serves as main or feeder protection in industrial power distribution and control panels while meeting UL 489 safety standards.
The LDC3300 carries UL 489 certification, confirming it meets established safety and performance standards for molded case circuit breakers used in industrial and commercial electrical installations.
Warranty is Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever comes first. For service, Eaton supports regional availability and readily accessible replacement parts to minimize downtime.