DTK-120X12 (120VAC 20A + 12 Low Voltage Circuit Series Surge Protective Device)
Read All Instructions Before Beginning Installation!
CAUTION: Risk of Electric Shock - Only intended for installation in accordance with
National Electric Code, ANSI/NFPA-70, Article 398.
Warning:
Turn power off at the main circuit breaker panel before beginning install.
Note: Connect this device in series between the 120VAC power supply and the load that requires
protection. Use 12 AWG Stranded, Cu only conductors with a 3/8” strip length when terminating
the wires at the power lugs. The conductors used to connect the SPD, to the supply or buss and to
ground, shall not be any longer than necessary and shall avoid unnecessary bends.
1. Remove (4) screws securing the cover, save screws.
2. Remove cover.
3. Connect a Ground (green or bare conductor) to the
EARTH
lug at the
LINE
side.
4. Connect the Neutral (white conductor) supply wire to the
NEUT
lug at the
LINE
side..
5. Connect the Phase (black conductor) supply wire to the
LINE IN
lug at the
LINE
side.
6. Connect the Ground, Neutral and Phase wires from the
LOAD
side to the control panel, or your
equipment’s AC inputs.
Note:
Tightening torque for the 120VAC power connections is 20 in-lb.
7. Use 3/4” conduit fittings for the AC circuit and a 1/2” conduit fitting for dry contacts. Best practice
dictates the use of separate conduit feeds to isolate the unprotected “
LINE
” wiring from protected
“
LOAD
” wiring
8. After all connections have been made and no hazards exist, proceed to the Low Voltage Surge
Module Wiring Diagram.
NC C NO
DRY CONTACT
)
NEUTRAL(-)
LOAD: 120VAC, 1AMP (MAX)
30VDC, 2AMP (MAX)
EXAMPLE MONITORING CIRCUIT
DRY CONTACT CIRCUIT INFORMATION
EARTH
NEUT
LINE IN
EARTH
NEUT
LINE OUT
DITEK
Surge Protection
R
NC C NO
EXAMPLE REMOTE MONITORING
USING FACP FOR NOTIFICATION
EARTH
NEUT
LINE
120VAC TO FACP
TO FACP AUXILIARY CONTACTS OR
ADDRESSABLE MONITOR MODULE
120VAC, 20AMP
SINGLE POLE BREAKER
TO BE FIELD VERIFIED
NC C NO
-LINE SIDE
-INPUT
-UNPROTECTED
120VAC, 20AMP
-LOAD SIDE
-OUTPUT
-PROTECTED
120VAC, 20AMP
POWER LUGS
#12 AWG
INPUT/LINE
LOAD
LINE
Wiring Diagram-120VAC Protection Circuit
POWER LUGS
#12 AWG
OUTPUT/LOAD
#30-12 AWG
