ETC ArcSystem Pro D4 Series, Installation Manual, Page: 15 / 68

System Overview 9
Note:
Installation must follow all national and local codes for electrical equipment.
Note:
Normal and emergency wiring cannot be contained in the same conduit
according to NEC 700.10(B).
Emergency drivers and luminaires require two branch circuit connections. These inputs have the
following functions:
1. Normal branch circuit to sense failure of the normal supply. Connect to Sense Input
connector.
2. Normal/Emergency branch circuit providing power to the luminaire in both conditions.
Connect to Maintained Input connector.
Sense detects when power is lost and forces the luminaire to a full-on state, powered by the
emergency supply through the Constant Power input. Control of the luminaire will not be
available until the sense input has been restored.
WARNING:
Do not mix 120 V and 277 V between the sense and
emergency feeds.
AVERTISSEMENT :
Ne pas inverser les alimentations à 120 V et 277 V
entre les alimentations de détection et de secours.
WARNING:
Sense (normal) and Maintained (normal/emergency) feeds
must have the same phase. The diagram below shows the recommended
installation.
AVERTISSEMENT :
Les alimentations de détection (normale) et
d’entretien (normal/secours) doivent être sur la même phase. Le schéma ci-
dessous présente l’installation recommandée.
normal
breaker
panel
ArcSystem multi-cell
emergency luminaire
or
ArcSystem one-cell
emergency luminaire
with emergency
driver
emergency
breaker
panel
normal branch circuit
used to sense normal power failure
connect to Sense input
normal/emergency branch circuit
normal
normal/emergency
from UL1008
ATS by others
connect to Maintained input