Cut Sheet

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WATTSTOPPER
®
SENSORS
Description
The CU-250 Ultrasonic Multi-way Vacancy Sensor provides
automatic lighting shutoff for a variety of applications including
those with multiple switch locations. It is engineered to comply
with specific provisions of California’s Title 24-2013 energy code.
Operation
The CU-250 operates as a manual-on sensor. Users must press
the pushbutton to turn on lighting. The CU-250 employs 40kHz
high frequency ultrasound to sense motion within an enclosed
space, and does not require a clear line of sight for proper
operation. It keeps lighting on as long as motion is detected
and provides automatic shutoff, following a user-selected time
delay, when motion is no longer detected. Users may turn the
connected load off manually.
Multi-way Operation
A CU-250 connected to other CU-250s and/or RH-253 Decorator
Single Pole Momentary Switches provides true multi-way on/
off control. An occupant simply presses the on/off pushbutton of
any connected device to turn on the lighting. Lights remain on
as long as one of the CU-250s continues to detect occupancy.
The user may turn off the lighting by pressing the on/off button
on any of the connected devices. If the room becomes vacant
and lights are on, they will be switched off automatically
following the time delay of the last CU-250 to detect occupancy.
Applications
CU-250s are ideal for bathrooms, L-shaped rooms, storage
areas and other applications where the sensor may have an
obstructed view of the covered area.
ULTRASONIC MULTIWAY WALL SWITCH VACANCY SENSOR
CU250
Manual-on/automatic-off control
with multi-way capability
Ideal for bathrooms, L-shaped rooms
and spaces with obstructions
Lighted pushbutton for visibility
in darkened rooms
Adjustable sensitivity and time delay
OCCUPANCY & VACANCY
• Complies with 2011 NEC requirements
• Replaces single- or multi-pole switches
• Provides multi-way control when used with other
CU-250s or RH-253s
• Adjustable time delay, 15 seconds to 30 minutes
• Adjustable sensitivity
• Lighted switch for visibility in darkened rooms
• Low-profile styling
• Choice of five decorator colors
• Operates most common types of lighting
• Relay-based switching
• No current leakage to load in off mode for safety
• Compatible with decorator wall plates
• CA Title 24 compliant
Features