Eaton MDL3800A13U26 Molded Case Circuit Breaker - UL Listed

Part Number: MDL3800A13U26
Manufacturer
Eaton
Part number
MDL3800A13U26

Quick Summary

Molded Case Circuit Breaker MDL3800A13U26 from Eaton provides reliable overcurrent protection for industrial power distribution. Engineers often battle nuisance trips and coordination challenges between AC and DC circuits in mixed-load panels. UL Listed certification underpins safety and reliability, while the Series C MDL frame delivers robust short-circuit performance. Designed for panel builders and OEMs, this device supports flexible mounting, a rear pigtail configuration, and reliable protection in demanding environments. Whether upgrading existing equipment or integrating new machinery, the 800 A rating, 600 Vac/250 Vdc capability, and modular accessories help optimize protection schemes and reduce downtime.

Product Information

Extended Description

MDL3800A13U26 Eaton: Eaton Series C complete molded case circuit breaker, MDL-frame, MDL, Fixed thermal and magnetic trips, Three-pole, 800A, 600 Vac, 250 Vdc, 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, 2A-2B rear w/right pigtail, 380-480 Vac rear w/ left pigtail
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
MDL3800A13U26
UPC
782116036790
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
Amperage Rating
800 A
Voltage rating
600 Vac, 250 Vdc
Trip Type
T186
Circuit breaker type
MDL
Circuit breaker frame type
Complete breaker
Auxiliary switch
2A-2B rear with right pigtail
Series
Series C
Undervoltage release
380-480 Vac rear with left pigtail
Frame
MDL
Interrupt rating
65 kAIC at 240 Vac 50 kAIC at 480 Vac
Number of poles
Three-pole
Feature: Fixed thermal and magnetic trips provide predictable protection without requiring constant recalibration. Benefit: Reduces unplanned outages and extends equipment life by ensuring fast and consistent responses to overloads. Application: Ideal for motor feeders and power distribution panels in manufacturing lines. Feature: 800 A amperage rating with 600 Vac / 250 Vdc voltage ratings. Benefit: Supports large assemblies from a single device, minimizing the need for parallel breakers and simplifying panel design. Application: Large control panels and motor control centers where high fault current could be present. Feature: Trip Type T186 with a 65 kAIC at 240 Vac and 50 kAIC at 480 Vac interrupt rating. Benefit: The high fault-current handling provides robust protection for heavy-duty equipment while improving selectivity and reducing damage during short circuits. Application: Industrial equipment with high inrush or short-circuit potential. Feature: Series C MDL frame with three poles. Benefit: Uniform trip characteristics across phases and space-saving enclosure integration. Application: Main feeder and motor-control applications where three-phase protection is required. Feature: Auxiliary switch 2A-2B rear with right pigtail and undervoltage release 380-480 Vac rear with left pigtail. Benefit: Enables remote signaling, coil control, and enhanced protection schemes without additional accessories. Application: Panels requiring remote annunciation and backup protection for critical drives. Insight: The MDL3800A13U26 aligns with industry best practices for MCCB selection in OEM projects, offering compatibility with Eaton accessories and broad applicability across industrial automation environments. Key long-tail terms: 800 A molded case circuit breaker, Series C MCCB, MDL frame protection, three-pole MCCB, undervoltage release accessories, pigtail termination, UL Listed MCCB.

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FAQs

To install, mount the MDL3800A13U26 in a suitable three-pole panel, align the frame with the mounting rails, and secure it. Connect the auxiliary function using the 2A-2B rear with right pigtail, and if undervoltage protection is required, attach the 380-480 Vac rear with left pigtail. Verify torque specifications and follow the panel manufacturer’s wiring practices for safe operation.
The MDL3800A13U26 features an interrupt rating of 65 kAIC at 240 Vac and 50 kAIC at 480 Vac. This allows robust short-circuit protection across common industrial voltages, enabling proper coordination with feeders and downstream devices while minimizing equipment damage during faults.
Yes. The MDL3800A13U26 is UL Listed and rated for 600 Vac, making it suitable for many global industrial installations requiring recognized safety certification and reliable high-voltage protection in panel boards.
Key features include fixed thermal and magnetic trips with a T186 trip type, 800 A rating, and Series C MDL frame in a three-pole configuration. These characteristics provide reliable overload and short-circuit protection for motors and motor control centers, supporting safe startup and operation of loads.
The unit offers a 2A-2B auxiliary switch rear with right pigtail and an undervoltage release option for 380-480 Vac rear with left pigtail. These accessories enable remote signaling, interlocking, and enhanced protection in integrated control schemes.