FAQ

87
• Remote monitoring — includes data like liquid accumulation,
enclosure temperature and humidity, line- and load-side voltage
values, ground continuity, and more. Access this data 24/7 and get
notified of any abnormal operating conditions via the Inform™ app
(mobile or laptop) or your existing automation system.
Material taken from the National Electric Code
®
is reprinted with permission
from NFPA 70
®
, 2023 edition. National Electrical Code
®
, Copyright 2022,
National Fire Protection Association, Quincy, MA. All rights reserved.
NEC
®
Text
Revision
445.19(B)(C) Emergency Shutdown of
Generator Prime Mover
Change Summary
• This article separately addresses the emergency
generator shutdown in one-and-two family houses
and OTHER THAN one-and-two family houses.
For other than 1-or-2 family houses a remote
emergency stop switch to shut the prime mover shall
be located outside the equipment room or enclosure.
For 1-or-2 family houses the emergency shutdown
shall be located outside the dwelling unit in a readily
accessible location, except for cord-and-plug
connected generators.
Article 445 – Generators
445.19 Emergency Shutdown of Prime Mover.
(B) Remote Emergency Shutdown. For other than
one- and two-family dwelling units, generators with
greater than 15 kW rating shall be provided with a remote
emergency stop switch to shut down the prime mover. The
remote emergency stop switch shall be located outside
the equipment room or generator enclosure at a readily
accessible location and shall also meet the requirements of
445.19(A)(1) and (A)(2).
The remote emergency stop switch shall be permitted to
be mounted on the exterior of the generator enclosure. The
remote emergency stop switch shall be labeled Generator
Emergency Shutdown, and the label shall meet the
requirements of 110.21(B).
(C) Emergency Shutdown in One- and Two-Family
Dwelling Units. For other than cord-and-plug-connected
portable generators, an emergency shutdown device shall
be located outside the dwelling unit at a readily accessible
location and shall also meet the requirements of 445.19(A)
(1) and (A)(2).
An emergency shutdown device mounted on the exterior
of the generator enclosure shall be permitted to satisfy the
requirements of this section. The shutdown device shall be
marked as the Generator Emergency Shutdown, and the
continued on page 88