Honeywell Sensing WLS Series Limit Switch Product Sheet0 pages

Wireless Heavy Duty
Limit Switch (WLS Series)
Limitless™ Switch
DESCRIPTION
The new Limitless™ product line combines the best of MICRO
SWITCH™ Heavy Duty limit switches with the latest
commercial off-the-shelf wireless technology. Wirelessenabled limit switches can be used for position sensing
and presence/absence detection for an endless number
of applications.
FEATURES
Wireless design
• Radio (license-free and global): WPAN 802.15.4, 2.4 GHz,
point-to-point
• FCC 15, IC, ACMA & ETSI
• EMI Immunity
• Up to 305 m [1000 ft] communication range when used with
a Limitless™ wireless monitor or receiver module
(sold separately)
• Reliable, flexible, and secure wireless transmission
• Standard replaceable battery with ultra-low
power consumption
• Direct or remote mount antenna options
Mechanical design
• IP67; NEMA 1, 3, 4, 6, 6P, 12, 13
• Unique all-metal drive train
• Twin shaft seals (rotary)
• Zinc head and body are phosphate treated and epoxy
finished making it less susceptive to effects from
environmental exposure
• Captive head and body screws
• Full complement of operating heads and levers
• Chemical resistant fluorocarbon seals (optional)
POTENTIAL APPLICATIONS
• Construction/Ag machines
• Valve position
• Conveyors
• Crane
• Remote or temporary equipment
boom/jib/skew
• Movable machinery
position
• Grain diverters or flaps
• Lifts
• Door position
• Material
• Hose attachment verification
handling
• Presses
• Specialty machines

The Limitless™ Series is especially beneficial for remote
monitoring applications where wiring or wire maintenance is
not physically possible or economically feasible. Combining
this greater flexibility with proven harsh duty packaging can
result in increased efficiencies and improved safety for
machines, equipment, OEMs, and operators.
SWITCH BENEFITS
• Built on field-proven MICRO SWITCH™ HDLS heritage
• Operating head rotary tested in excess of 50 million cycles
for enhanced reliability
• Diaphragm seal between head and body cavity provides
sealing protection
• Twin shaft seals protect head and internal components from
corrosion and debris
• Sintered bronze bearings provide extended mechanical life
APPLICATION BENEFITS

• Enables wireless presence/absence detection in
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applications/ machinery where wiring is challenging
or not feasible
Integration of existing wireless technology with the superior
reliability of Honeywell MICRO SWITCH™ limit switch series
Ability to reconfigure and network multiple switches or pointto-point personalized addresses, thus easily allowing adding,
subtracting, or relocating Limitless™ switches
Reduces installation/maintenance costs with no wires,
conduit, strain relief, clips, connectors, or connection boxes
Output options
- Panel mount monitor: visual, audible (buzzer), NPN output
- DIN-mount receiver: visual, NPN/PNP (relay, CAN,
Ethernet, Profibus available in the future)
Consumes ultra-low power to prolong battery life (replaceable)
Long-range signal of 305 m/1000 ft line-of-sight in
North America
RF board operating in 2.4 GHz globally license-free
frequency band; WPAN 802.15.4
EN 50041 metal enclosure; IP67;NEMA 1, 3, 4, 6, 6P, 12, 13
Full complement of operating heads and levers, as well as
monitor/receivers and accessories