A robust solution for heavy-duty applications, the Eaton MDL3800 is an 800A, three-pole molded case circuit breaker. It provides reliable long-time and instantaneous protection for commercial and industrial electrical systems. This unit-mount breaker fits into Series C panelboards, switchboards, and motor control centers. It includes standard line and load lugs for secure connections. With a 50kAIC rating at 480VAC, it features an interchangeable thermal-magnetic trip and HACR certification.
CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489
Approval
CE, CSA, UL
Temp Rating
40C
Construction Features
Interchangeable Trip Unit, HACR Rated, Reverse Feed
Product FAQs
5 answers
What enclosures or equipment are compatible with the MDL3800?
This Series C M-Frame breaker is designed for installation in Eaton Series C panelboards, switchboards, and motor control centers.
What wire size and material do the standard lugs accept?
The factory lugs accept three conductors per phase. They are rated for both aluminum and copper wire (Al/Cu) ranging from 3/0 AWG to 400 kcmil.
Are the trip functions field-adjustable on this breaker?
No, this model features a thermal-magnetic trip unit with fixed thermal and fixed magnetic settings. It provides non-adjustable long-time and instantaneous (LI) protection.
Can the trip unit be replaced on the MDL3800?
Yes, this breaker utilizes an interchangeable frame design. The factory-installed MT3800T thermal-magnetic trip unit can be removed and replaced if different protection parameters are required.
What is the standard replacement lug kit for the 800A MDL breaker?
The standard factory replacement terminal kit for 800A MDL and HMDL circuit breakers is part number TA800MA2.
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