DTK-DF240S12 (12 Circuit 240VAC 20A Series Surge Protective Device)
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 240VAC power supply and the loads
that require 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 safety barrier, save screws.
2. Remove safety barrier.
3. Connect a Ground (green or bare conductor) from the EARTH terminal at the bottom
of the board to the multi-position grounding buss located at the bottom of the enclosure.
4. Connect the Grounds, (green or bare conductors) from the distribution panel to the
multi-position grounding buss located at the top of the enclosure.
5. Connect the Neutral (white conductor) supply wire from the distribution panel to the
NEUTRAL terminal at the
N1 IN
lug.
6. Connect the Phase (black conductor) supply wire from the distribution panel to the
Phase terminal at the
L1 IN
lug.
Note: Circuit 1 must be connected first. The diagnostic circuits get their power from
this input.
7. Connect the Neutral (white conductor) for the connected load to the
N1 OUT
lug.
8. Connect the Phase (black conductor) for the connected load to the
L1 OUT
lug.
9. Connect the Grounds, (green or bare conductors) for the connected loads to the
multi-position grounding buss located at the bottom of the enclosure.
10. Repeat the above steps for circuits 2 through 12
Note: Tightening torque for the 240VAC power connections is 20 in-lb.
11. Use 1-1/2” conduit fittings for the AC circuits and a 1/2” conduit fitting for dry contacts.
12. After all connections have been made and no hazards exist, replace safety barrier
and secure with screws.
13. Insert DTK-DF240M surge modules, starting with circuit 1, then restore power.
L1
N1
IN
L1
N1
OUT
L2
N2
IN
L2
N2
OUT
