ABB Zenith ZTX Series, Operation, Maintenance, And Installation Manual

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Ze nit h Z T X S e r i e s AT S , O PER ATI O N , M A I NTEN A N CE , A N D I N S TA LL ATI O N G U I D E
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9.6 Wire Connection
ZTX series AL/CU UL Listed Solderless Screw-Type Terminals for External Power Connections
Model
ATS Rating
(A) Source/Load Lug Type Wire Range
Cables
per pole
Cables - Tightening
Torque 1 , lb-in (N-m)
ZTX
30 - 60
Source 1 OZXA-24 14 - 2/0 AWG 1 50/5.7
Source 2 / Load OZXA-100 12 - 2/0 AWG 1 132/15.0
100 - 200
Source 1 OZXA-25 6 AWG - 300 KCMIL 1 275 / 31.1
Source 2 / Load OZXA-200 4 AWG - 300 KCMIL 1 200 / 22.6
260 - 400
Source 1 OZXA-26 2 AWG - 600 KCMIL 1 375 / 42.4
Source 2 / Load OZXA-400 2 AWG - 600 KCMIL 1 375 / 42.4
600
Source 1 OZXA-800L 2 AWG - 600 KCMIL 2 500/56.5
Source 2 / Load OZXA-800E 2 AWG - 600 KCMIL 2 500/56.5
800 - 1200
Source 1 OZXA-1200 2 AWG - 600 KCMIL 4 500/56.5
Source 2 OZXA-800S 2 AWG - 600 KCMIL 4 500/56.5
Load OZXA-1200 2 AWG - 600 KCMIL 4 500/56.5
1 Do not exceed this value - may cause damage to switch, voiding warranty
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Table 9.3 Power Cable Torque Requirements
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9.7 Final Equipment
Inspection
Prior to energizing the transfer switch:
1. Remove any debris incurred, with a vac-
uum, due to shipment or installation.
2. Verify that all cabled connections are
correct and that phase rotation of both
sources match.
3. Check engine start connections.
4. Verify the correct connection of all
control wires.
5. Check settings of all timers and
adjust as necessary.
6. Adjust any optional accessories as
required.
7. Check the lug torque values of the
power connections.
8. Make sure that all covers and barriers
are installed and properly fastened.
For simple details on start-up refer to ZTX
Quick start guide document number
1SCC303022K0201.
Each ABB Zenith transfer switch is factory
wired and tested. A complete information
package is furnished with each switch
which includes:
- Sequence of operation.
- Description and operation of all
accessories supplied.
- Power panel connection diagram
and schematic.
- Description and identification of all
customer field connections.
Installation of ABB Zenith transfer
switches includes:
- Mounting the transfer switch cabinet.
- Connection of Source 1, Source 2, and
Load cables or bus bars.
- Connection of external control circuits
as required.
Notice
Lugs come pre-installed and torqued