Lockout for reset mechanism of electrical protective device
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United States of America Patent
Stats
-
Dec 30, 2003
Grant Date -
May 1, 2003
app pub date -
Dec 3, 2002
filing date -
Apr 6, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrical protective device that includes a reset mechanism uses a resistor body to act as a hold-off to a spring driven lockout for the reset mechanism. Upon the failure of an internal component of the protective device, the spring driven lockout mechanism is released by I.sup.2 R thermal action which causes a resistor to burn in half, or in the alternative, to melt solder mounting the resistor, thereby eliminating the hold-off and locking out the reset mechanism.
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