The Eaton HMDL3800F is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 800 Amps with trip unit sold separately and a voltage rating of 600VAC. It has an interrupting rating of 100kAIC at 240VAC, 65kAIC at 480VAC. The HMDL3800F has a bolt-on connection type and includes long time and instantaneous trip functions. Please contact a sales representative for assistance with trip unit selection and mounting hardware provisions where needed.
No. The HMDL3800F is a frame-only component [1.1.3]. You must install a compatible Eaton Series C MDL-frame trip unit, such as the MT3800T thermal-magnetic unit or a Digitrip 310 electronic unit, to complete the breaker assembly.
What does the H in the HMDL3800F catalog number indicate?
The H designates this as a high-interrupting frame. It provides a higher short-circuit interrupting capacity compared to standard MDL frames, making it suitable for commercial and industrial systems with higher available fault currents.
Are terminal lugs included with this breaker frame?
No, the HMDL3800F frame does not include terminal lugs out of the box. You must purchase compatible lugs, such as the TA800MA2 kit, separately depending on your specific copper or aluminum wire size requirements.
Is this frame compatible with older Cutler-Hammer or Westinghouse equipment?
Yes. Eaton manufactures the Series C line, which is fully backward compatible with legacy Cutler-Hammer and Westinghouse breakers bearing the exact same HMDL3800F catalog number.
Can I use Eaton Series G trip units in this frame?
No. The HMDL3800F is strictly part of the Eaton Series C family. It will only accept Series C MDL-frame interchangeable trip units.
Which standard thermal-magnetic trip unit pairs with the HMDL3800F?
For standard 800A thermal-magnetic protection, the Eaton MT3800T is the correct 3-pole trip unit designed for this frame.
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