Instruction Booklet
IB48088
Effective July 2021
Contents
Description Page
Section 1. Introduction . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Identification . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Product description . . . . . . . . . . . . . . . . . . . . 4
1.6 Main bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.7 Sound levels . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.8 Modifications to equipment . . . . . . . . . . . . . 8
1.9 Documentation reference . . . . . . . . . . . . . . . 8
1.10 Eaton contact information . . . . . . . . . . . . . 8
Section 2: Receiving, handling, and storing . . . . . 9
Section 3: Installation . . . . . . . . . . . . . . . . . . . . . 10
3.1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Section 4: Common configurations . . . . . . . . . . . 11
4.1 Close-coupled Ampgard arc resistant
MVCC and Eaton VacClad switchgear. . . . . . . . 13
Section 5: Duct and plenum installation . . . . . . . 17
5.1 Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Access to equipment . . . . . . . . . . . . . . . . . 17
5.4 Exhaust duct . . . . . . . . . . . . . . . . . . . . . . . 17
5.5 Medium-voltage cableways . . . . . . . . . . . . 20
5.6 Installing the plenum . . . . . . . . . . . . . . . . . 21
Section 6: Designated arc gas vent area . . . . . . . 27
6.1 Arc gas vent area . . . . . . . . . . . . . . . . . . . . 27
Read and understand all the markings, labels, and
instructions before attempting installation, opera-
tion, or maintenance of this equipment.
This equipment must be installed and serviced
only by qualified electrical personnel. Retain this
document for future use.
Instructions for Eaton’s 7.2 kV Ampgard AR
(arc resistant motor control center)
(Compliant to IEEE C37.20.7-2017)