TP-6807 12/11 23Section 4 Service Disconnect, SE Model
Section 4 Service Disconnect, SE Model
Note: This section applies only to service entrance
model transfer switches, which are identified with
the letters ASE at the end of the model
designation.
Hazardous voltage.
Will cause severe injury or death.
This equipment must be installed and
serviced by qualified electrical
personnel.
DANGER
4.1 Service Disconnect Procedure
Use the following procedure to disconnect the utility
source on service entrance model transfer switches.
Note: Power is still present on the input side of the utility
source circuit breaker after this procedure.
1. Prevent the emergency generator set from
starting:
a. Press the OFF button on the generator set
controller.
b. Disconnect power to the generator set battery
charger.
c. Disconnect the generator set engine starting
battery, negative (--) lead first.
2. On the transfer switch, remove the outer enclosure
door only.
3. Move the utility source circuit breaker to the OFF
position.
Note: Power is still present on the input side of the
utility source circuit breaker. Do not remove
the protective barrier around the utility
source connection lugs.
4. To lock out the transfer switch, replace the outer
door and attach a padlock to the hasp.
4.2 Source Circuit Breaker Reset
The utility source circuit breaker can trip due to an
overcurrent condition. Identify and correct the cause of
the overcurrent condition before resetting the circuit
breaker. Contact a local distributor/dealer for service if
necessary.
When the circuit breaker trips, the handle moves to an
intermediate position. To reset a tripped circuit breaker,
move the handle to the extreme OFF position and then
to the ON position.
1
GM80015
1. Normal/utility circuit breaker
2. Padlock hasp
2
Figure 4-1 Service Entrance Model, Door Removed
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