ABB TruONE ATS OXB250E3S3QT User manual

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SERVICE INSTRUCTION; MECHANISM, FRAME, POWER AND CONTROL MODULES
TruONE® ATS Automatic transfer switches
Replacement of mechanism and spare parts
— TruONE® ATS Automatic transfer switches 34OX_MECH_ rev. B / 1SCC303018M0201

2AUTOMATIC TRANSFER SWITCHES, REPLACEMENT OF SPARE PARTS
Additional information
We reserve the right to make technical
changes or modify the contents of this
document without prior notice. With
regard to purchase orders, the agreed
particulars shall prevail. ABB does not
accept any responsibility whatsoever for
potential errors or possible lack of infor-
mation in this document.
We reserve all rights in this document
and in the subject matter and illustra-
tions contained therein. Any reproduc-
tion, disclosure to third parties or
utilization of its contents – in whole or
in parts – is forbidden without prior
written consent of ABB.

3
34OX_MECH_ REV.B, 1SCC303018M0201
—
Read these safety instructions carefully
before starting work!
• Detailed descriptions of standard proce-
dures for installation, use, maintenance
and principles for safe operation are not
included. It is important to note that this
document contains safety and precaution
instructions, against certain methods (of
installation, use and maintenance) that
could cause harm to personnel, damage
devices, or make them unsafe.
• These warnings and alarms do not in-
clude all conceivable ways to make instal-
lation, use and maintenance recom-
mended by ABB or not, that may be made,
or possible consequences and complica-
tions of each conceivable way, nor shall
ABB investigate all those ways.
• Anyone using maintenance procedures or
devices, recommended by ABB or not,
must check thoroughly that neither per-
sonal safety nor the safety devices are
endangered by mode of installation, use,
maintenance or the instruments used.
For more information, questions or spe-
cific problems contact your nearest ABB
representative.
Warning
• This manual is written for qualified per-
sonnel only and is not intended as a sub-
stitute for a proper course, or experience
about safety procedures for this device.
• For the products equipped with commu-
nication, the purchaser, the installer or
the final customer is responsible for ap-
plying all the IT security measures neces-
sary in order to prevent risks deriving
from connection to communication net-
works; such risks include, among other
things, the use of the product by unau-
thorized persons, alteration of its normal
functionality, accessing and modifying
the information.
• The purchaser, installer or end user is re-
sponsible for ensuring that notices and
safety signs are posted and that all ac-
cess points and switching devices are
locked securely when the switchgear is
left unattended, even momentarily.
• All the information contained in this doc-
ument reflects the latest product infor-
mation available at the time of printing.
We reserve the right to edit the document
at any time and without notice.

4AUTOMATIC TRANSFER SWITCHES, REPLACEMENT OF SPARE PARTS
—
Risk of electric shock or accident!
Before proceeding with any maintenance
operation, it is mandatory to:
• Disconnect the power supply to the
power circuit and auxiliary circuits and
visibly ground the terminals on both the
supply side and load side.
• Use adequate personal protection equip-
ment, ensure that the apparatus is in a
safe condition and proceed in accordance
with the Laws in force.
The maintenance operations must be car-
ried out by skilled personnel:
• An electrical skilled personnel (IEV 195-
04-01: person with relevant education
and experience to enable him or her to
perceive risks and to avoid hazards which
electricity can create).
• ABB declines all liability for damage to
persons or property caused by failure to
comply with the instructions in this docu-
ment.
Hazard
—
Tools needed
Torx 20, long,
min. 140 mm

5
34OX_MECH_ REV.B, 1SCC303018M0201
—
Service instruction
Automatic transfer
switches, TruONE® ATS
1. Removing the complete mechanism
from the switch, OX_30...1600_ 6
2. Replacing of complete mechanism
with electronics, OX_30...1600_ 9
3. OX_30...400_ | Removing of frame,
control and power modules 14
REMARK! See also Chapter 1: Removing
complete mechanism from the switch
4. OX_30...400_ | Replacing of frame,
power and control modules 18
REMARK! See also Chapter 2: Replacing of
complete mechanism with electronics
5. OX_400U...1600 | Removing of frame,
control and power modules 23
REMARK! See also Chapter 1: Removing
complete mechanism from the switch
6. OX_400U...1600 | Replacing of frame,
power and control modules 27
REMARK! See also Chapter 2: Replacing of
complete mechanism with electronics
13 2456

6AUTOMATIC TRANSFER SWITCHES, REPLACEMENT OF SPARE PARTS 6
1
—
Removing the complete mechanism
from the switch, OX_30...1600_
!

7
34OX_MECH_ REV.B, 1SCC303018M0201 7
1

8AUTOMATIC TRANSFER SWITCHES, REPLACEMENT OF SPARE PARTS 8
1
A
Short-circuit current ratings: Short-time current ratings:
J
ABB / Tmax T5L, T5V
OXA400X3X3QBM
480VAC 400A
MADE IN FINLAND
TRANSFER SWITCH
IEC 60947-6-1
Icm
30kA /100ms
Icw
36kA
415V 400A AC-31B
415V 400A AC-33B
Uimp 6 kV
Ie400A 50...60Hz
Class PC
Minimum enclosure:
height mm
width mm
depth mm
Use Cu-Al conductors
60˚C Wire only
Suitable for use
with terminal kit
OZXA400 or
OZXA400L
4x2-600 MCM
Terminaltorque 500 lb-in
1180
560
217
400A
RMS
SYMM AMPS
X1000
VOLTAGE
MAX
FUSE CLASS or
CIRCUIT BREAKER
MANUFACTURER/ TYPE
AMPS
MAX
RMS
SYMM AMPS
X1000
VOLTAGE
MAX
TIME DURATION
Sec. 30
RMS
SYMM AMPS
X1000
VOLTAGE
MAX
TIME DURATION
Sec.
gG
480
Automatic Transfer Switch
for use Emergency or
Standby Systems
50
40
480
480
0.03
0.06
0.1
0.3
0.5
600
400
800
480
480
415
100
50
100

9
34OX_MECH_ REV.B, 1SCC303018M0201 99
2
!
—
Replacing of complete mechanism with
electronics, OX_30...1600_ / OX_MECH_
Complete mechanism with
electronics (without HMI)
• Open transition (I - II)
- Level 2: OXAMECH-2-L2,
OXAMECH-3-L2, OXAMECH-4-L2
- Level 3: OXAMECH-2-L3,
OXAMECH-3-L3, OXAMECH-4-L3
- Level 4: OXAMECH-2-L4,
OXAMECH-3-L4, OXAMECH-4-L4
• Delayed transition (I - O - II or II - O - I)
- Level 2: OXBMECH-2-L2,
OXBMECH-3-L2, OXBMECH-4-L2
- Level 3: OXBMECH-2-L3,
OXBMECH-3-L3, OXBMECH-4-L3
- Level 4: OXBMECH-2-L4,
OXBMECH-3-L4, OXBMECH-4-L4
Check the handle position in the new
mechanism is same as the indication in
the switch! Use the handle if needed!
A

10 AUTOMATIC TRANSFER SWITCHES, REPLACEMENT OF SPARE PARTS 10
2
1 Nm / 8.75 lb.in