Power-Limited Wiring Requirements - Fire-Lite Alarms MRP-2001E Installation, Operation, And Programming Manual

Power-limited Wiring Requirements

2.5 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. Furthermore, all power-limited and nonpower-limited circuit wiring must
enter and exit the cabinet through different knockouts and/or conduits. A typical wiring diagram is
illustrated below.
*Note: In certain applications, an NAC (power-limited circuit) could be adjacent
to a releasing circuit (nonpower-limited without supervision kit REL-4.7K)
Power-limited Circuits
(Class 2)
AC Power
120 VAC
Hot (L1)
Ground
Neutral (L2)
earth
ground
Figure 2.10 Typical UL Power-limited Wiring Requirements
MRP-2001 & MRP-2001E PN 53040:A 4/16/2007
Nonpower-limited Circuits*
Power-limited Circuits (Class 2)
CAC-5X
Deluge - Preaction Control FACP
CAC-5X
4XTMF
Installation
Power-limited
Circuits
(Class 2)
Nonpower-
limited
Circuit
Nonpower-
limited
Circuit
Power-limited
Circuit
(Class 2)
25