Eaton MDLB2800W Molded-Case Breaker - UL Listed

Part Number: MDLB2800W
Manufacturer
Eaton
Part number
MDLB2800W

Quick Summary

The Eaton MDLB2800W Molded-Case Breaker provides reliable overcurrent protection for industrial power distribution in control panels. Engineers often face unpredictable trip behavior and space constraints when integrating protection near motors and controllers; this unit delivers fixed thermal and fixed magnetic trips for consistent response. UL Listed certification validates safety and compliance in demanding environments, while the Series C MDL frame supports reliable coordination with minimal enclosure footprint. Designed for 50/60 Hz systems, it offers installation flexibility and long-term maintenance efficiency. For procurement teams, the combination of proven protection, straightforward retrofits, and documented performance translates into reduced downtime and lower total cost of ownership.

Product Information

Extended Description

MDLB2800W Eaton: Eaton Series C complete molded case circuit breaker, MDL-frame, MDLB, Complete breaker, Fixed thermal, fixed magnetic trip type, Two-pole, 800A, 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, Without terminals, 50/60 Hz
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
MDLB2800W
UPC
782114356869
Product Length/Depth
18 in
Product Height
8 in
Product Width
11 in
Product Weight
26 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
Amperage Rating
800 A
Trip Type
T186
Circuit breaker type
MDLB
Circuit breaker frame type
Complete breaker
Series
Series C
Terminals
Without terminals
Frame
MDL
Interrupt rating
50 kAIC at 480 Vac 65 kAIC at 240 Vac
Number of poles
Two-pole
Feature → Business Impact → Application: The MDLB2800W uses a complete MDL frame molded case breaker with a two-pole, 800 A rating and a dual interrupt capability of 50 kAIC at 480 VAC and 65 kAIC at 240 VAC. This enables protection of large residential, commercial, or industrial feeders while maintaining a compact footprint. The fixed thermal, fixed magnetic trip type (T186) ensures predictable fault clearing, reducing nuisance trips and improving system availability in motor control centers and switchgear. Application-wise, this translates to more reliable feeder protection in panels that power presses, conveyors, and process equipment, with fewer unnecessary outages. Compatibility with standard MCCB accessories and outlines in Eaton catalogs simplifies replacement, retrofits, and expansion projects, delivering faster commissioning and safer operation. In addition, the “without terminals” option can streamline installation when lugs or bus connections are already in place, reducing material costs and assembly time. Industry-standard time-current curves in the Series C documentation further support accurate coordination studies and compliance with internal electrical protection policies. The product’s UL Listed status reinforces safety and reliability during audits, while the robust interrupt rating provides confidence for high-inrush applications. Overall, the MDLB2800W supports lifecycle cost reduction through dependable protection, easier installation, and consistent performance across varying loads and duty cycles.

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FAQs

The MDLB2800W is designed for industrial power distribution in control panels, motor control centers, and switchgear. Its Series C MDL frame and two-pole configuration fit standard MCCB enclosures, enabling straightforward replacement and retrofit in existing installations without major cabinet modification.
This breaker features fixed thermal and fixed magnetic trips (T186), delivering predictable response to both sustained overloads and short-circuit faults. This reduces nuisance trips and enhances protection coordination with downstream devices, important for high-inertia motors and loaded feeders.
Yes, the MDLB2800W is UL Listed, confirming conformity with recognized safety standards for electrical protection devices. This certification supports compliance during audits and helps ensure safe operation in industrial environments and electrical installations.
The breaker provides 50 kAIC at 480 VAC and 65 kAIC at 240 VAC, with an 800 A rating. This combination supports robust short-circuit protection for demanding loads while allowing flexible operation across 480V and 240V systems.
Refer to Eaton’s Series C documentation and time-current curves for installation guidance, along with the multi-wire lugs and terminal accessory brochures. The ‘without terminals’ option requires compatible lug or bus connections, and matching accessories simplify installation and ensure proper torque and termination.