1.7
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
Introduction and Specifications
Model Options
Model Options
SEL-387-0 Relay
The SEL-387-0 (Model 03870xxxx) has provided sophisticated and reliable
service for many years. It continues to satisfy the needs of most of our
customers. However, we recommend using the SEL-387-5 or the SEL-387-6
for new designs because of the enhanced features they provide.
SEL-387 Relay
The SEL-387-5 includes all of the features of the SEL-387-0 plus the
following enhancements:
➤ Adds 16 local control switches
➤ Adds 8 latch control switches for a total of 16
➤ Adds DNP3 Level 2 Slave communications protocol
SEL-387-6 Relay
The SEL-387-6 differs from the SEL-387-5 in that it includes a transformer
thermal model with protection elements and reporting functions.
Conventional
Terminal Blocks
This model includes hardware that supports 12 current inputs, 6 optoisolated
inputs, 7 programmable output contacts, 1 alarm contact, 3 EIA-232 ports,
1 EIA-485 port, and IRIG-B time code. It uses terminal blocks that support #6
ring terminals. This robust package meets or exceeds numerous industry
standard type tests.
This relay is available in a 3.50" (2U) or 5.25" (3U) rack-mount package or
4.9" or 6.65" panel mount package. Additional optoisolated inputs and
programmable output contacts are available with the larger packages.
Plug-In Connectors
(Connectorized)
This model includes hardware that supports all of the features of the
conventional terminal blocks model. It differs in its use of plug-in connectors
(Connectorized
®
) instead of terminal blocks. In addition, it provides
➤ Quick connect/release hardware for rear-panel terminals
➤ Level-sensitive optoisolated inputs
This robust package meets or exceeds numerous industry standard type tests.
It is available in a 5.25" (3U) rack-mount package or a 4.9" panel-mount
package.
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