Ul Power-Limited Wiring Requirements - Fire-Lite Alarms MS-5024 Product Description

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" away from any nonpower-limited circuit wiring. Furthermore, all power-limited
circuit wiring and nonpower-limited circuit wiring must enter and exit the cabinet through different knockouts and/or
conduits. A typical wiring diagram for the MS-5024 is shown below.
Typical Wiring Diagram for UL Power-limited Requirements
FIGURE 2-8:
26
Power-limited Circuits
AC Power
Earth
Ground
BELLS
24V NON- 24V
1 2
RESETTABLE RESETTABLE
1 2 3 4 1 2 3 4
TB5 TB4
1 2
TB1
J1
- +
TEST CONNECTOR
Nonpower-limited Circuits
ZONE 3
ZONE 4 ZONE 5
ZONE 1 ZONE 2
NO NC C NO NC C
B+ B- B+ B- B+ A+ A- B- B+ B- B+ B-
TB3
TB2
ADM-24
J3
KISS OFF
/LOAD
LED 3
Document #50066 Rev.D2 12/03/02
Power-limited Circuits
Power-limited
P/N 50066:D2
Circuit