Motortronics
- 5 -
XLS Series Solid State Soft Starter 39 - 1250A
3.1 Thermal Overload Relay
The XLS Series provides motor overload protection using an adjustable
solid state overload relay. The standard XLS Series is furnished with a
Class 10 overload, providing an overload rated at 600% current for 10
seconds. Class 20 overload relays, providing an overload rated at 600%
current for 20 seconds, are also available.
3.2 Overload Relay
The solid state overload relay has an adjustable FLA range set by a
dial. The tripping current corresponds to 110% of the set current.
3.3 FLA Dial Adjustment
The overload relay dial must be set to the number from the overload
settings label that corresponds to the set surrent.
OVERLOAD RELAY DIAL SETTING =
WARNING!
To provide continued protection against fire or shock hazard,
the complete overload relay must be replaced if burnout of the
heater element occurs.
3.4 Manual/Automatic Reset
Manual or automatic reset can be selected with the blue button. The
appropriate setting is selected by pressing and turning the button.
Note:
When the automatic restart operation is selected the start
warning portion of this label must be placed as to be visible
after installation. Label states as follows:
3.5 Test for Trip Indication
The switch position indicator also incorporates a test function which,
when activated, simulates a tripped overload relay. Both auxiliary
contacts are actuated and the switch position is indicated. This test
is recommended to ensure that the motor protection is active. Checking,
or changing the overload is recommended on major faults.
WARNING: MOTOR CONNECTED TO THIS EQUIPMENT
MAY START AUTOMATICALLY WITHOUT WARNING.
Example of Warning Label
FLA Adjustable Dial
Chapter 3 - Motor Overload Protection
FLA
CT RATIO
To Next Page
Loading...
Need help?
General
