1: Overview Introduction - GE Multilin 889 Instruction Manual

GE
Grid Solutions
A factory wired terminal block
frame ensures accurate
mapping of existing terminal
locations to the 889 terminal
block
Note
MULTILIN 489 TO 889 RETROFIT KIT – INSTRUCTION MANUAL
Multilin 489 to 889 Retrofit Kit
Chapter 1: Overview
Overview
1.1 Introduction
Traditionally, retrofitting or upgrading an existing relay has been a challenging and time
consuming task, often requiring re-engineering, panel modifications, and re-wiring. The
TM
Multilin 489 to 889 Retrofit Kit provides a quick 3-step solution to upgrade previously
installed Multilin relays, reducing upgrade costs and minimizing effort.
The Retrofit Kit comes factory assembled and tested as a complete unit with the 889
protection relay. Optional replacement hardware is available (terminal blocks and screws)
for use if the existing hardware is significantly aged or damaged. An optional 3" collar is
available to ensure the depth of the existing and replacement relays matches, eliminating
the need to push or pull cables.
Existing terminal
blocks and wire labels
plug directly in
This is an 850 Retrofit model. The 889 Retrofit upper terminal blocks differ somewhat
from what is shown.
3" depth
reduction collar
eliminates the
need to push or
pull cables
889 Protection Relay, mapped
to the existing 489 device
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