2
INSTALLATION & WIRING
1. Prepare the switch box.
After the power is turned OFF at the circuit breaker box, remove
the existing wall plate and mounting screws. Pull the two old
switches or combination switch (double switch) out from the wall
box.
2. Identify the type of circuit.
If you are replacing a combination switch, you may find that it
is connected to a circuit as described in A or B in the following
sections.
a. Single-circuit wiring (see Fig. 2): Three wires are attached
to the combination switch. The HOT feed wire bringing
power into the box is connected to the side of the switch that
has a connecting tab. The wires carrying power out to the
loads are connected to the side of the switch that does not
have a connecting tab. A neutral wire should be present in
the wall box. A ground wire may also be present and
connected to a ground terminal on the old switch.
b. Separate-circuit wiring (see Fig. 3): Four black wires
are attached to the combination switch. HOT feed wires
from the power source are attached to the side of switch
that has a connecting tab, and the connecting tab is
removed. Wires carrying power from the switch to loads
are connected to the side of the switch that does not
have a connecting tab. A neutral wire should be present
in the wall box. A ground wire may also be present and
connected to a ground terminal on the old switch.
If you are substituting two single pole switches, each single
pole circuit should match the description in Fig. 2.
In a Single Pole Circuit (see Fig. 5, next page), two single
wires connect to two screws on the existing switch. A
ground wire may also be present and connected to a
ground terminal on the old switch. A neutral wire should
also be present in the wall box.
Only connect the CS-350-N to one of the three circuit
options described. The CS-350-N is not suitable for 3-way
switching. If the existing wiring does not match any of the
previously described circuit options, you should consult
with a qualified electrician.
3. Prepare the Wires.
Tag the wires connected to the existing switch, so that they
can be identified later. Disconnect the wires. Make sure the insulation is stripped off the wires to expose their
copper cores to the length indicated by the “Strip Gauge” in Fig. 4 (approx. 1/2 inch).
4. Wire the sensor.*
Twist the existing wires together with the wire leads on the CS-350-N sensor as indicated in the diagram.
Cap them securely using the wire nuts provided (See Fig 6, next page).
a. Connect the green or non-isolated (copper) GROUND wire from the circuit to the CS-350-N
green terminal.
b. Connect the NEUTRAL wire from the circuit and from the loads to the
white wire on the CS-350-N.
c. Connect the power wire from circuit #1 (HOT#1) to the black wire on the
CS-350-N.
d. Connect the power wire to load #1 (LOAD#1) to the red wire on the
CS-350-N.
e. Connect the power wire from circuit #2 (HOT#2) to the solid brown wire on
the CS-350-N.
f. Connect the power wire to load #2 (LOAD#2) to the striped brown/white
wire on the CS-350-N.
WARNING
DISCONNECT POWER TO THE WALL SWITCH BOX
BY TURNING OFF THE CIRCUIT BREAKER OR REMOVING THE
FUSE FOR THE CIRCUIT BEFORE INSTALLING THE CS-350-N,
REPLACING LAMPS, OR DOING ANY ELECTRICAL WORK.
WIRES
TO
LOADS
WIRES
GROUND
WIRES
FEED WIRE
Fig. 2: Single-circuit wiring
WIRES
TO
LOADS
GROUND
WIRES
WIRES
Fig. 3: Separate-circuit wiring
Strip Gauge
1/2"
12.7mm
Fig. 4: Wire Stripping
CAUTION - FOR YOUR SAFETY:
CONNECTING A PROPER GROUND
TO THE SENSOR PROVIDES PROTECTION
AGAINST ELECTRICAL SHOCK IN THE
EVENT OF CERTAIN FAULT CONDITIONS.
IF A PROPER GROUND IS NOT AVAILABLE,
CONSULT WITH A QUALIFIED ELECTRICIAN
BEFORE CONTINUING INSTALLATION.