4
Wiring Diagram #1 (Suggested):
A three phase sensing module sends a dry contact signal to another system upon loss of 1 or more phases of
normal power.
TEST
EMERGENCY
POWER
UTILITY
POWER
#1 BLUE
#2 WHITE/BLUE
#6 WHITE
#3 ORANGE
#4 BROWN
EPC-THPH
EMERGENCY
PANEL
OR
INVERTER
EMERGENCY
NEUTRAL
EMERGENCY
HOT
20A
NORMAL
(UTILITY)
PANEL
NORMAL
NEUTRAL
NORMAL HOT
(PHASE A)
20A
#5 YELLOW
#9 YELLOW/ORANGE
#8 BLUE/ORANGE
#7 BROWN/ORANGE
NORMAL HOT
(PHASE B)
NORMAL HOT
(PHASE C)
DRY STATUS
CONTACT *
Note: Dry status contact is
shown in emergency state. It
can be used for BMS and other
remote control purposes. If
unused, cap #7,8,9 leads.
Note: if emergency power is
unavailable - normal power
may be hooked up to #1/#2.
However, red LED will not
supervise EM power.
Note: if only 1 phase sensing is required,
connect orange, brown, and yellow wires
together - or use LVS model RRU-UNV.
Red Fire Alarm Loop
Consult factory for wiring details
Blue time delay loop (cut to disable)
Note: When blue wire is un-cut there is a 2.5 second time delay when normal power is restored before dry status contact
changes staets. Cut blue jumper and cap off leads to disable time delay.
