KS 3-2010
Page 17
Section 7
ACCESSORY DEVICE TEST PROCEDURES
7.1 General
If testing instructions for the specific accessory being tested are available from the manufacturer, those
instructions should be followed to verify the operation of the accessory. If the manufacturer's instructions are
not available, the tests described below may be used to verify the basic operation of the accessory.
7.2 Shunt Trip Release Tests
Figure 7
Sample Shunt Trip Release
7.2.1 Purpose
To verify that the shunt trip release device (Figure 7) will trip the switch when energized.
7.2.2 Equipment
This test requires a power supply capable of maintaining the rated voltage.
7.2.3 Procedure
WARNING—Follow all safety procedures described in Section 2.
CAUTION—Switches and accessory devices can be damaged if power is applied to the wrong terminals.
The specific lead wires or terminals for each accessory must be properly identified before conducting any of
the following tests.
7.2.3.1 After disconnecting and locking out all power, isolate the shunt trip solenoid leads from the
control circuit for testing.
© Copyright 2010 by the National Electrical Manufacturers Association.
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