Introduction
1
Introduction
Welcome to the installation manual for Unison AX series auxiliary enclosures. This manual
contains the procedures for safe and efficient installation of an AX main breaker auxiliary
enclosure or AX main lug auxiliary enclosure, and the cross-bussed AX12X auxiliary enclosure.
Warnings and Notice Conventions
These symbols are used in ETC documentation to alert you to danger or important
information:
AX Series Auxiliary Enclosures
Series
Voltage
Notes
AX6-MCB-1-150
100–120 VAC
150 A main breaker enclosure for DRd6 – 1Ø, 3-wire
AX6-MCB-3-100
100–277 VAC
100 A main breaker enclosure for DRd6 – 3Ø, 4-wire
AX12-MCB-1-300
100–120 VAC
300 A main breaker enclosure for DRd12 – 1Ø, 3-wire
AX12-MCB-3-200
100–277 VAC
200 A main breaker enclosure for DRd12 – 3Ø, 4-wire
AX12X Series Cross-bussed Auxiliary Enclosures
Series
Voltage
Notes
AX12X-MCB-1-400
100–120 VAC
400 A main breaker for (2) DRd12 – 1Ø, 3-wire
AX12X-MCB-3-400
100–277 VAC
400 A main breaker for (2) DRd12 – 3Ø, 4-wire
AX12X-ML-1-600
100–120 VAC
Main Lug with cross-bussing for (2) DRd12 enclosures – 1Ø,
3-wire (600 A maximum main feed)
AX12X-ML-3-400
100–277 VAC
Main lug with cross-bussing for (2) DRd12 enclosures – 3Ø,
4-wire (400 A maximum main feed)
Note:
Notes are helpful hints and information that is supplemental to the main text.
CAUTION:
A Caution statement indicates situations where there may be undefined or
unwanted consequences of an action, potential for data loss or an equipment
problem.
WARNING:
A Warning statement indicates situations where damage may occur, people
may be harmed, or there are serious or dangerous consequences of an action.
WARNING:
RISK OF ELECTRIC SHOCK! This warning statement indicates situations where
there is a risk of electric shock.
