Eaton MDLB2500 Molded Case Circuit Breaker - UL Listed

Part Number: MDLB2500
Manufacturer
Eaton
Part number
MDLB2500

Quick Summary

The Eaton MDLB2500 molded case circuit breaker protects electrical distribution in panels and MCCs by interrupting fault currents. Engineers often face tradeoffs between compact size and reliable trip performance; this model delivers both with a fixed thermal magnetic trip in a Series C MDL frame. Its UL Listed certification confirms adherence to recognized safety standards, while the 65 kAIC at 240 V and 50 kAIC at 480 V ratings support high fault currents common in industrial plants. With a 50/60 Hz frequency rating and a compact footprint, installation is simpler and more scalable. This translates to reduced commissioning time and lower lifecycle costs for industrial protection and circuit control systems.

Product Information

Extended Description

MDLB2500 Eaton: Eaton Series C complete molded case circuit breaker, MDL-frame, MDLB, Complete breaker, Fixed thermal, fixed magnetic trip type, Two-pole, 500A, 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, 50/60 Hz
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
MDLB2500
UPC
782114586136
Product Length/Depth
8.25 in
Product Height
4.06 in
Product Width
8.25 in
Product Weight
20 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
500 A
Trip Type
T186
Circuit breaker type
MDLB
Circuit breaker frame type
Complete breaker
Series
Series C
Frame
MDL
Frequency rating
50 to 60 Hz
Interrupt rating
50 kAIC at 480 Vac 65 kAIC at 240 Vac
Number of poles
Two-pole
Feature: Two-pole, Series C complete molded case circuit breaker with a fixed thermal magnetic trip type (T186) in an MDL frame. Business Impact: Delivers reliable selective tripping and consistent protection for feeder circuits, reducing downstream fault propagation. Application: Ideal for panelboards and motor control centers in manufacturing and process facilities. Feature: Amperage rating of 500 A with high interrupt ratings of 65 kAIC at 240 V and 50 kAIC at 480 V. Business Impact: Handles high fault currents without compromising system integrity, lowering the risk of equipment damage and downtime. Application: Suitable for feeders serving large motors and critical loads in plant environments. Feature: UL Listed certification. Business Impact: Facilitates code compliance and faster commissioning in USA-based projects, simplifying procurement and inspection processes. Application: Widely used in industrial protection and electrical protection & circuit control applications. Feature: Compact MDL frame dimensions (8.25 in L x 8.25 in W x 4.06 in H) and 20 lb weight. Business Impact: Space-efficient installation enables easier panel crowding management and retrofit projects. Application: Compatible with existing switchgear footprints in control panels and switchgear assemblies. Feature: 50/60 Hz frequency rating and two-pole design for reliability and cross-continental use. Business Impact: Supports global plant configurations without custom substitutions, reducing stocking complexity. Application: Cross-site deployments in manufacturing, energy, and infrastructure projects. Feature: Warranty and support under Eaton policy (25-000), one year from installation or eighteen months from shipment. Business Impact: Provides lifecycle cost predictability and risk mitigation for procurement teams. Application: Suitable for OEMs, service centers, and maintenance programs seeking dependable coverage.

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FAQs

Install the MDLB2500 as a two-pole unit within an MDL frame enclosure, ensuring correct alignment with the bus bars and factory wiring terminals. Use the fixed thermal magnetic trip (T186) setting for your application, verify UL Listed compliance, and connect conductors per Eaton's installation guidelines to achieve reliable protection and rapid fault interruption.
The MDLB2500 provides an interrupt rating of 65 kAIC at 240 V and 50 kAIC at 480 V. This enables high fault current interruption in demanding industrial environments while maintaining selective protection for downstream circuits and equipment.
Yes. The MDLB2500 is a complete Series C molded case circuit breaker designed for the MDL frame, two-pole operation, and fixed trip characteristics. It fits standard Series C panel and MCCB applications, simplifying replacement and retrofit projects.
The MDLB2500 is UL Listed, indicating compliance with recognized safety standards for molded case circuit breakers. This certification supports code approvals, reduces qualification time for installations, and enhances reliability expectations for maintenance teams in industrial facilities.
Eaton provides a warranty under policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This coverage helps protect procurement and maintenance budgets while ensuring access to service literature, replacement parts, and support for ongoing reliability in manufacturing environments.