2 units, Schweitzer SEL-587 Current Overcurrent Differential Relay, Rackmounted

Schweitzer Engineering Laboratories

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Estimated delivery time 3 business days
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Product Overview

This configuration features 2, SEL-587 units are joined side by side to make a nice rack mount configuration.

The visual inspection that we performed showed that the product is used, clean, and in great condition. When you turn it on, you can see that the display works well and the controls are responsive, however, we do not have the capability to test it.

Within the contiguous 48 states of the United States, you'll receive free shipping on this item.
  • Part number (bother units): 0587103X5X1
  • Power: 85-140Vac / 36-200Vdc, 5.5W max.
  • Logic input: 80-150Vdc
  • Serial port: EIA-232

From Schweitzer Engineering Laboratories marketing literature:
"The SEL-587 Current Differential/Overcurrent Relay provides protection for any two-input apparatus, such as transformers, motors, generators, and reactors. Apply it for differential and overcurrent protection and use event reports for quick post-event analysis."

Additional product information from Schweitzer Engineering Laboratories.

MPN: SEL-587

Item was as described, and very fast delivery!

5 stars across the board for every seller rating category, and I would buy from this seller again. And per my request, the capacitors were also very well packed for safe delivery.

Bruce B.

Obtainium have been a very helpful seller to me.

In recent times I have had a few items go astray enroute to my address in Australia. This seller was most helpful & encouraging, regarding the onward tracking & eventual safe delivery of this item. This item's arrival in good condition was a joy to me as, it was a rare part that fitted my military comms. Well done seller. I would gladly recommend this seller to all potential buyers.

Jean-Pierre H.

Super Duper Fast Shipping.

Item As Described. Packaged Nicely, What A Seller.

Wayne L.


The instrument was well packed. It is in extremely good condition. It passed all preliminary tests.

Raymond W.

Item looks better than described, looks brand new and works great.

My old buffer was 50 years old and I sent it to buffer heaven, thanks.

Mike H.

Just what the doctor ordered.

Good supply and price. Thxs

Ralph M.