LEGRAND CH-250 Installation Instructions Manual
Wattstopper
P
P
®
Multi-Way Wall Switch Vacancy Sensor
No: 24554 – 09/16 rev. 1
Installation Instructions • Instructions d’Installation • Instrucciones de Instalación
Catalog Number • Numéro de Catalogue • Número de Catálogo: CH-250
Country of Origin: Made in China • Pays d’origine: Fabriqué en Chine • País de origen: Hecho en China
SPECIFICATIONS
Voltage .......................................................120VAC, 60Hz
Load (Multi-Way)
Incandescent or fluorescent .................. 0-600 Watts
Fan motor ........................................................ 1/6 hp
Time Delay Adjustment .. 15 sec., 5 min., 15 min., 30 min.
Environment .............................................. Indoor use only
Operating Temperature ......32° to 131°F (0° to 55°C)
Humidity ........................... 95% RH, non-condensing
Tools Needed
Insulated Screwdriver
Wire Strippers
DESCRIPTION AND OPERATION
CH-250 Multi-Way Wall Switch Vacancy Sensors are designed to replace standard single pole and
multi-way (3-way, 4-way) switches. They are ideal for any room with multiple entries, and any other
indoor space where vacancy sensor-based control with manual ON/OFF capability are desirable.
Like standard switches, you can press the ON/OFF button to turn the light or fan (controlled load)
ON and OFF. Unlike standard switches, the CH-250 automatically turns OFF the controlled load
after the coverage area has been vacant for a period of time (Time Delay). If motion is detected
within 30 seconds after it automatically turns OFF, the CH-250 automatically turns the load back
ON.
The CH-250 can be wired with up to three additional CH-250s for multi-way Manual ON/OFF of
one or several loads (up to one load connected to each CH-250). It can also be wired to up to
four RH-253 single pole momentary wall switches for multi-way Manual-ON/OFF Automatic-OFF
control of one load.
Lighted Switch
To help you locate the CH-250 in a dark room, the amber LED illuminates the ON/OFF button
while the controlled load is OFF. When the controlled load is ON, the LED is OFF.
Fig. 1: Sensor Coverage Area
Time Delay
The CH-250 keeps the load ON until no motion is detected by any of the related CH-250s for the time delay period. The time delay can
be selected by the user during set up. It can be adjusted to any of these fixed values:15 seconds/5 minutes/15 minutes/30 minutes. We
recommend that the time delay be the same in all sensors related to the same load. This makes it easier to understand the multi-way
control operation as well as trouble shooting. For additional information on how to adjust it, please read the SENSOR ADJUSTMENT
section of this installation manual.
Coverage Area
The CH-250 has a maximum coverage range of 180 degrees and a coverage area of 600 square feet (56 square meters). The sensor
must have a clear and unobstructed view of the coverage area. Objects blocking the sensor’s lens may prevent detection thereby
causing the light to turn OFF even though someone is in the area.
Windows, glass doors, and other transparent barriers will obstruct the sensor’s view and prevent detection.
INSTALLATION AND WIRING
Strip Gauge
MASTER CH-250 AUXILIARY CH-250
q
OT
TOP
INDOOR USE O NLY
Red -> LOAD
(power to lamp
or fan)
White ->
NEUTRAL
GROUND
TERMINAL
Red -> capped
GROUND
TERMINAL
White ->
NEUTRAL
Yellow-> TRAVELER 2
to AUX CH-250
Yellow-> TRAVELER 2
to MASTER CH-250
HOT (power
from circuit box)
Black-> TRAVELER 1
power to
MASTER CH-250
Black-> TRAVELER 1
power from
AUX CH-250
NEUTRAL
GROUND
LOAD/Common
(power to lamp)
GROUND
HOT/Common
Lamp/load
TRAVELER
TRAVELER
(power from circuit box)
NEUTRAL
MASTER SWITCH
AUXILIARY SWITCH
These instructions describe only the 3-way circuit applications. For
information about other applications, consult technical support.
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 old switch
out from the wall box.
2. Identify the type of circuit.
You may connect the CH-250 to a single pole or multi-way
circuit. If you are unable to clearly identify some or all of the
wires mentioned in this manual, you should consult with a
qualified electrician.
In a 3-way circuit (see Fig. 2), two traveler wires connect to
both switches. Another wire provides power from the circuit box
to one of the switches. A wire connects from one switch to the
load. A ground wire may also be connected to a ground terminal
on the old switches. A neutral wire should also be present in
both wall boxes.
WARNING: TURN THE POWER OFF AT THE
CIRCUIT BREAKER BEFORE WIRING.
Fig. 2: Typical 3-Way Switch Wiring
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 qualied electrician before continuing installation.
3. Prepare the Wires.
Tag the wires currently connected to the existing switch so that
they can be identified later. Disconnect the wires. Make sure
the insulation is stripped off of the wires to expose their copper
cores to the length indicated by the “Strip Gage,” in Fig. 3.
(approx. 1/2 inch).
4. Wire the sensor.
Twist the existing wires together with the wire leads on the
CH-250 sensor(s) as indicated in either figures 4a and 4b or
figures 5a and 5b. Cap wires securely using wire nuts.
Wiring two CH-250s in a 3-way configuration
• Connect the green or non-insulated (copper) GROUND wire
from the circuit to the green terminal on each CH-250.
• Connect the NEUTRAL wire from the circuit and from the
lamp (LOAD) to the white wire on the master CH-250.
• The term “master” designates the CH-250 that connects to
the load.
• Connect the NEUTRAL wire from the circuit in the other wiring
box to the white wire on the auxiliary CH-250.
• Connect the power wire from the circuit box (HOT) to the
black wire on the auxiliary CH-250 and to the TRAVELER 1
wire.
• Connect the TRAVELER 1 wire from the black wire of the
auxiliary CH-250 to the black wire of the master CH-250.
• Connect the lamp power (LOAD) to the red wire on the
master CH-250.
• Cap the red wire on the auxiliary CH-250.
• Connect the TRAVELER 2 wire coming from the yellow wire
of another CH-250 to the yellow wire of the CH-250 that you
are wiring.
TOP
INDOOR USE ONLY
MASTER CH-250
1/2"
Fig. 3: Wire Stripping
Fig. 4a: Sensor orientation, wire connections,
and wall box assembly
Hot
Neutral
Red
White
Black
Yellow
Ground
Load
Neutral
Traveler 1
Traveler 2
Red
White
Black
Yellow
Ground
AUXILIARY CH-250
Fig. 4b: Step 4a. Reference wiring diagram
TOP
INDOOR USE ONLY
2
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