Eaton/Cutler-Hammer EHD3035 3 Pole Circuit Breaker
The Eaton/Cutler-Hammer EHD3035 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 35 Amps and a voltage rating of 480V. It has an interrupting rating of 14kAIC at 480VAC. The EHD3035 has a bolt-on connection type and includes long time and instantaneous trip functions.
Which Eaton panelboards are compatible with the EHD3035 circuit breaker?
The EHD3035 is an F-frame breaker designed for use in Eaton Pow-R-Line panelboards, including the PRL3a, PRL3X, and PRL4 series, as well as compatible switchboards and motor control centers. It requires the appropriate F-frame connector kit, such as the KPRL3AFD3 for 3-pole installations in a PRL3a panel.
What is the difference between Eaton EHD, FD, and HFD circuit breakers?
While all three are F-frame breakers with identical physical dimensions, they differ in their interrupting ratings. EHD breakers have a standard interrupting capacity of 14kA at 480V, FD breakers have a high interrupting capacity of 35kA at 480V, and HFD breakers have an ultra-high interrupting capacity of 65kA at 480V.
What type of wire is compatible with the standard lugs on the EHD3035?
The standard 3T100FB lugs on this F-frame breaker accept 14 AWG to 1/0 AWG wire and are dual-rated for use with both copper (Cu) and aluminum (Al) conductors.
What are the recommended lug torque specifications for the EHD3035?
For the standard 3T100FB lugs, the tightening torque depends on the wire size: 35 lb-in for 14-10 AWG, 40 lb-in for 8 AWG, 45 lb-in for 6-4 AWG, and 50 lb-in for 3-1/0 AWG.
Is the EHD3035 suitable for direct current (DC) systems?
Yes, in addition to its 480VAC rating, this breaker is UL listed for DC applications up to 250VDC, providing a 10kA interrupting capacity for direct current circuits.
Is there a difference between the Cutler-Hammer EHD3035 and the Eaton EHD3035?
No, they are the exact same product. Eaton acquired Cutler-Hammer and eventually transitioned the branding. The EHD3035 may be labeled under either name depending on the manufacturing date, but the form, fit, and function are identical.
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