E-STOP Function:
NFPA 79 requires that push-button emergency stops be of the “self-latching” type,
which means that after an emergency stop actuator is depressed and the contacts
open, the emergency stop device must remain in the actuated position until it is
deliberately reset. If the E-STOP function has been activated, to turn off the gas
supply, you must check for leaks, or reason for activation, before resetting.
Resetting Instructions
Resetting the E-STOP means a person manually intervenes and unlatches the
button by rotating the button to the right.
Tamper Resistant:
The Emergency Stop Button is secure and is not easily removable from the
enclosure.
Safeguarding:
Emergency Stop devices are not a replacement for proper safeguarding or
automatic safety devices. Instead, it should be used as a backup measure. In ad-
dition, the activation of the emergency stop should not impair the effectiveness of
the other safety devices.
9
Summary of Contents for E-STOP09
Page 28: ...28...