Cut Sheet

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WATTSTOPPER
SENSORS
Description
The PW-311 passive infrared (PIR) dimming wall switch sensor
can turn lights OFF and ON based on occupancy and allow the
user to increase or decrease the lighting level. It works with
0-10 VDC dimming drivers and ballasts to control lighting loads
including LEDs.
Operation
The PW-311 installs in a single gang junction box with or
without neutral wiring. Factory default operation is for Manual-
ON, so that users turn lights on only when needed. It uses PIR
technology to detect occupancy. Once the space is vacated
and the time delay elapses, lights automatically turn OFF. DIP
switch settings enable a variety of control options such as
Auto-ON operation, high and low trim, ramp up and fade down
times, power loss mode, smart light level, walk-through and
test modes. Multiple sensors may be used to dim a lighting load
from up to four locations.
Partial-ON Option
When set for Automatic-ON operation, the PW-311 typically
comes ON to the last non-zero light level for occupant comfort
and convenience. However, this default setting may be changed
to a fixed light level value of 50%, 75% or 100%. The dimmed
level options (Preset On Level) support new state and federal
energy code requirements.
Applications
The PW-311 sensor is ideal for enclosed spaces with clear line
of sight of the occupant. Common applications include small
offices, small conference rooms and lunch/break rooms. It
can be used for a two-wire or three-wire installation, either to
work with existing wiring, or to meet recent local or national
electrical code requirements. An easy-to-break plastic tab
covers neutral screw terminals. Once the sensor is connected
to neutral it complies with all codes that restrict current
leakage to ground.
PASSIVE INFRARED 010 VOLT DIMMING WALL SWITCH
OCCUPANCY SENSOR
PW311
Defaults to Manual-ON operation for
maximum energy savings
Supports Partial-ON operation for energy
code compliance or incentives
Allows fully functional multi-way control
from up to four switch locations
Neutral Sense™ connection option with
break off tab to expose neutral terminals
120/277VAC and 347VAC models
Color-matched lens and
low profile for appealing design
OCCUPANCY AND VACANCY
• Neutral Sense™ and optional neutral wiring simplifies 2011
NEC-compliant installation
• Vandal resistant lens combines precise coverage with
durability
• Presentation mode may be deactivated to allow Auto-ON
operation after 15 second time delay
• Optional Smart Light Level adapts ambient light hold off
threshold to meet user needs
• Selectable walk-through mode turns lights off three minutes
after the room is initially occupied if no motion is detected
after the first 30 seconds
• Test mode allows quick and easy verification of coverage
• Selectable audible and/or visual alerts for impending shutoff
• LED indicates occupancy detection
• Service mode allows sensor to operate as a service switch in
the unlikely event of a failure
• Zero-crossing for long relay life
• No derating required for multi-gang applications
• Sensor coverage tested to NEMA Guide Publication WD 7-2000
• Compatible with decorator wall plates
• This product meets the material restrictions of RoHS
Features