WARNING
More than one live circuit! Disconnect all sources of supply before servicing and/or before using the manual operation.
WARNING
Switch will be “not in auto” when
either one of the covers are open.
Clip to maintain
cover upright
Slide cover
to access
service
handle hole.
See manual
operation below
for the handle
sequences.
Operational limits
4
5
Manual operation (for maintenance purpuses only)
Instructions for manual, non-electric, offload operations for service
Manual operation
1
For inspection use a standard tool as shown to operate
(not included).
Unscrew handle cover and arc chutes cover
Open the cover and click in place and
open the arc chute
Use the slow or fast handle to visualize
the state of the contacts
Operation order
Recommendation : carry out one offload
manual operation with handle
(FAST
OPERATION) before putting the switch
back in service.
Reverse the procedure to close. Ensure that all is closed properly before putting back in service. In case
any part of the ATyS DT switch is found to be damaged in any way, replace the complete switch.
Inspection of power
contacts
Connecting to source 2:
To connect the load to Source 2 (S2) position
both handle to the bottom position (top handle
to S2, bottom handle to OPEN).
Connecting to source 1:
To connect the load to Source 1 (S1) position
both handle towards the top (top handle to
OPEN, bottom handle to S1).
Connecting to center OFF:
To connect the load to center off (OPEN)
position the top switch handle to the top
position and the bottom switch handle to the
bottom position.
Interlocking mechanism:
The mechanical interlock ensures
that S1 and S2 are mutually
exclusive and inhibits one switch
from being closed unless the
other switch is open.
Warning: when manually
switching always place one of
the two handles in the OPEN
position BEFORE switching the
second handle.
4
1
2
3
OPERATING VOLTAGE @ 50/60 (+/- 10%) HZ
NETWORK
MINIMUM COIL
OPERATING VOLTAGE (VAC)
MAXIMUM COIL
OPERATING VOLTAGE (VAC)
277/480 VAC
194 (Ph/N)
304 (Ph/N)
120/208 VAC
194 (Ph/Ph)
304 (Ph/Ph)
120/240 VAC
194 (Ph/Ph)
304 (Ph/Ph)
480 VAC with transformer
194 (Ph/N)
304 (Ph/N)
OPERATING TIMES
(1)
RATING
TRANSFER DESCRIPTION
MINIMUM TRANSFER TIME (
ms
)
(NORMAL TO ALTERNATE)
MINIMUM TRANSFER TIME (
ms
)
(ATLTERNATE TO NORMAL)
MAXIMUM TRANSFER TIME (
ms
)
(NORMAL TO ALTERNATE)
MAXIMUM TRANSFER TIME (
ms
)
(ATLTERNATE TO NORMAL)
100-200 A
Contact transfer time
(2)
48
41
61
54
Total transfer time
(3)
144
321
198
553
260-400 A
Contact transfer time
(2)
60
54
90
64
Total transfer time
(3)
156
333
226
563
(1) All times measured without load and at 240 VAC at ambient temperature, actual times may vary depending on network and load.
(2) Time for which load is disconnected from both source 1 and source 2 with both sources available.
(3) Total time to transfer including detection of source total failure and transfer times.
OPERATING TEMPERATURE
SWITCH AND
TRANSFORMER
I0 /10
CONTROLLER
32 to 131°F
0 to +55°C
14 to 158°F
-10 to +70°C
-22 to 158°F
-30 to +70°C
with limitation on the LCD screen that may
show distortion below 32°F / 0°C
0.25 in / 6mm diam max.
SLOW OPERATION
A
B
C
After maintenance
operations are done
screw back the covers:
Tightening torque
17.7 lb.in / 2 N.m / PH2
A
B
C
2
FAST
OPERATION
4
3