Ul Power-Limited Wiring Requirements - Honeywell NOTIFIER NFW-50X Manual

UL Power-limited Wiring Requirements

2.6 UL Power-limited Wiring Requirements
Power-limited and nonpower-limited circuit wiring must remain separated in the cabinet. All power-limited circuit wiring must remain at
least 0.25" (6.35 mm) away from any nonpower-limited circuit wiring and nonpower-limited circuit wiring must enter and exit the cabi-
net through different knockouts and/or conduits. When connecting the ground cables, be sure that the AC mains ground is the first one
installed, closest to the backbox. A typical wiring diagram for the NFW-50X is shown below.
Power-
limited
Circuits
(Class 2)
AC
Power
Grounding
Stud (see
Figure 2.4)
NFW-50X Manual — P/N LS10129-001NF-E:C 7/25/2018
Nonpower-limited Circuits
ALRM TRBL SUPV
NO NC C NO NC C NO NC C
4XTM
H/L1 EARTH N/L2
Batteries
Wire Nut
Ground
Cables (2)
#71073
Figure 2.10 Typical UL Power-limited Wiring Requirements
Power-limited Circuits (Class 2)
RMT SYNC NAC1 ANN-BUS PRI
NAC2
RTN- OUT-
OUT+ RTN+
USB-A
BATTERY DISPLAY
To
maintain minimum 0.25" between
power-limited and nonpower-limited
circuits wiring
ANN-BUS SEC 24V SLC
IPOTS-COM
COMMUNICATOR
ANN-LC
Installation
Power-
limited
Circuits
(Class 2)
Power-limited
(Class 2)
Supervised
Ethernet Circuit
Nonpower-
limited (Class 1)
Supervised
Telephone
Circuit
27