2.5
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
Installation
Rear-Panel Connections
Rear-Panel Connections
We provide two options for secure connection of wiring to the relay rear
panel. One of these is the conventional terminal block, in which you use size
#6-32 screws to secure rear-panel wiring. The other option uses plug-in
(Connectorized) connections that offer robust connections while minimizing
installation and replacement time.
Connectorized rear-panel connections reduce repair time dramatically in the
unlikely event that a relay should fail. These connections greatly simplify
routine bench testing; connecting and disconnecting rear-panel wiring takes
only a few minutes.
Connectorized relays use a current shorting connector for current inputs, a
plug-in terminal block that provides maximum wiring flexibility for inputs
and outputs, and a quick disconnect voltage rated connector for voltage inputs.
The manufacturers of these connectors have tested them thoroughly, and many
industry applications have proven the performance of these connectors. In
addition, we have tested these connectors thoroughly to ensure that they
conform to our standards for protective relay applications.
Terminal Block
Make terminal block connections with size #6-32 screws using a Phillips or
slotted screwdriver. You may request locking screws from the factory. Refer to
Figure 2.4 and Figure 2.5 to make all terminal block connections.
Connectorized
To use the Connectorized version of the SEL-387, ask your SEL sales or
customer service representative for the appropriate model option table and
order wiring harness kit WA03870YxxxA, where x designates wire sizes and
length. You can find the model option table on the SEL website at selinc.com.
Refer to Figure 2.6 to make all Connectorized connections.
To Next Page
Loading...