QUICK START GUIDE
Page 2
© 2021 ABB. All rights reserved.
Step 2
-
Ground Chassis
Notes:
Lug landing is M5 on
5/8”
centers (lug not provided)
10 AWG (6mm2) recommended.
Some applications may rely on frame mounting screws for shelf ground
omitting the shelf ground cable
Torque to 35 in
-
lb (4Nm )
-
5/16” (8
mm) socket.
Step 3
-
Connect System DC Reference (CO) Ground
Make one connection to the power system (CP, NE, SPS, etc.). No connection to a stand
-
alone, remote distribution
shelf.
Connections are on the rear under the RETURN cover.
Attach lug adapter to the unused RETURN bus landings of the top or bottom Shelf (850036871 lug adapter is
supplied with primary distribution shelves).
Lug landing
-
1/4”
holes on
5/8”
centers (hardware provided, lug not provided)
Torque all hardware to 65 in
-
lb (7.3 Nm)
-
7/16”
socket.
Step 4
-
Connect Shelf DC
Connections are on the rear under covers.
Bus Connection
-
to an adjacent shelf
Install inter
-
shelf buses joining
-
48V and RETURN bus connections of adjacent shelves.
Torque to 65 in
-
lb (7.3 Nm)
Cable Connection
-
Stand
-
alone Shelf
CAUTION: Verify battery voltage and polarity with a voltmeter before proceeding.
Lug Landings
-
2 x
1/4”
on
5/8”
center,
0.7”
(18mm) max. tongue width.
Connect cables with suitable lugs to
-
48V and RETURN.
Torque to 65 in
-
lb (7.3 Nm)
Frame Ground
(right sides)
Lug Adapter
