Eaton / Cutler-Hammer 6702ED584 — DC Contactor

The 1800 A DC contactor most often found inside Ross Hill SCR bays — an Eaton part, catalogued by Ross Hill as 0401-0021-00.

Independent sourcing, not an authorized distributor. Eaton, Cutler-Hammer, Ross Hill, NOV, and other manufacturer names and part numbers are used for reference only. Supplied as new-surplus, used-tested, or reconditioned, with condition disclosed before sale.

Manufacturer part number	6702ED584
Manufacturer	Eaton / Cutler-Hammer
Ross Hill part number	0401-0021-00
EI reference	EI-6702ED584
Type	DC contactor
Rating on file	1800 A, 74 VDC coil
Found in	Ross Hill / NOV SCR bays
Condition	New-surplus, used-tested, reconditioned

Also searched as

6702ED584 · 6702ED-584 · 6702 ED 584 · 0401-0021-00 · 0401002100 · Cutler-Hammer 6702ED584 · Eaton 6702ED584 · Ross Hill SCR bay contactor · 1800 amp DC contactor · EI-6702ED584

This is an Eaton part, not a Ross Hill part

Worth stating plainly, because it is the most common misunderstanding on this number. The 6702ED584 is an Eaton / Cutler-Hammer DC contactor. Ross Hill specified it into its SCR bays and catalogued it under a Ross Hill number, 0401-0021-00, but Ross Hill did not build it.

That distinction has practical consequences. It means the part has a life independent of the Ross Hill parts chain, and it means a search against the Eaton number will usually turn up more than a search against the Ross Hill number. If you have only been quoted against 0401-0021-00, try 6702ED584.

Read the suffix — the coil voltage changes

This is the identification risk that actually costs people money on this family. The base number and the suffixed variants share a frame and a current rating but differ in coil voltage.

Number	What is recorded	Note
6702ED584	DC contactor, 1800 A, 74 VDC coil.	this page
6702ED584-2	Same 1800 A frame, listed by distributors with a 115 VDC coil.	Different coil voltage
6702ED587-2	DC contactor, 3000 A, 74 VDC.	Different current rating
6702ED621-2	DC contactor, 1000 A, 125 VDC, reversing.	Different rating and coil

A contactor with the wrong coil voltage will either fail to pull in or run hot and fail early. Read the whole number off the nameplate, including any suffix, and tell us the coil voltage your bay actually supplies.

Related Ross Hill contactor numbers

Several DC contactors appear in and around Ross Hill SCR bays. They are not the same item and should not be treated as substitutes for one another.

Number	Manufacturer	What is recorded
0401-0021-00	Eaton / Cutler-Hammer	The Ross Hill number for the 6702ED584. Same item as this page.
0401-0008-01	Eaton / Cutler-Hammer	DC contactor, 1000 A 74 VDC, reversing.
0401-0025-00	Eaton / Cutler-Hammer	DC contactor, 3000 A 125 VDC, rebuilt. Expect a 6702ED-family number on the unit.
0100-0389-02	Ross Hill	Ross Hill 1800/C contactor, 1800 A 74 VDC. Same headline rating as the 6702ED584 and a genuinely different part — see the note below.

Two different 1800 A / 74 VDC contactors turn up in this equipment: the Eaton 6702ED584 covered here, and the Ross Hill 0100-0389-02 ("1800/C"). Matching ratings do not make them interchangeable. If your paperwork and your hardware disagree, photograph the nameplate before ordering — see the Ross Hill 1800/C page.

Symptoms that point here

What you are seeing	What it usually indicates
Contactor will not pull in	Coil, coil voltage, or control circuit — verify the coil rating first
Contactor chatters or drops out under load	Coil supply or worn contacts
Heavy pitting or welding on the tips	Contacts at end of life, or an interruption duty problem
Replacement fitted and it runs hot	Wrong coil voltage variant — check the suffix

Nameplate

We verify the full number, including suffix, and the coil voltage against the physical unit before quoting, and send photos of the nameplate on the unit being offered.

What to send us

These are the details that let us identify the right unit instead of guessing at it.

The complete number as it reads on the nameplate, including any suffix
The coil voltage your bay supplies
Current rating and pole configuration if visible
Whether the application is reversing or non-reversing
Rig and drive it came out of
A photo of the nameplate if you can take one
Quantity and your need-by date

Condition & sourcing

Supplied as new-surplus (unused, from the secondary market), used-tested, or reconditioned, with condition disclosed before sale and photos on request. Availability on legacy Ross Hill and NOV equipment changes constantly — send the number and we will tell you what we can actually find.

FAQ

Is 6702ED584 a Ross Hill part?

No. It is an Eaton / Cutler-Hammer DC contactor. It is very commonly found inside Ross Hill SCR bays, which is why it is often searched for as a Ross Hill part, but it was not manufactured by Ross Hill. Ross Hill catalogued it under its own number, 0401-0021-00.

What is 6702ED584 rated at?

Our records and distributor listings put the base 6702ED584 at 1800 A with a 74 VDC coil. Confirm the rating on your own nameplate before ordering — the suffix variants differ.

What is the difference between 6702ED584 and 6702ED584-2?

The coil voltage. Distributor listings for the -2 suffix show a 115 VDC coil, where the base number is recorded at 74 VDC. Same frame and current rating, different coil. Fitting the wrong coil voltage is a real risk on this family, so read the full number including any suffix.

What is the Ross Hill number for this contactor?

0401-0021-00 in our records. If you are working from a Ross Hill parts list you may only see that number; if you are working from the unit itself you will usually see the Eaton number. Both point at the same item.

Do you supply the other contactors in the bay?

We source the 6702ED family and the related Ross Hill contactor numbers as new-surplus, used-tested, and reconditioned. Send the number and the coil voltage and we will tell you what we can find.

Availability & Quote

Condition always disclosed before sale. Photos on request. Same-day response on most requests.

Request a Quote or send the part number to sales@edmundsonindustrial.com (832) 975-8827Houston, TX.

Ross Hill 0100-0389-02 Contactor (1800/C)SCR Bay Components SCR House Replacement Parts Ross Hill / NOV Cross-Reference Eaton / Cutler-Hammer

Send 6702ED584 and your coil voltage.

Condition disclosed before sale. Same-day response on most requests.

Request a Quote