Datasheet

8 sensing.honeywell.com
MICRO SWITCH Heavy-Duty Limit Switch, HDLS Series
High temperature/Chemical-resistant Switches
Completely fluorocarbon (FC)-sealed switches have a full FC
body gasket coving the switch cavity. Rotary types have an
extra FC seal on the operating shaft, while plunger versions
have FC boot seals. They are for use in many applications
where the environment includes fire-resistant synthetic fluids.
In addition to most all fluids, the FC-sealed switches may be
used with such industrial fluids such as Cellulube, Fyrquell,
HoughtoSafe, Pydraul, and other special cutting and hydrau-
lic fluids. The additional FC seals also promote longer oper-
ating life for rotary-actuated HDLS switches in applications
where the temperatures are normally 12°C to 121°C [10°F
to 250°F]. If pre-wired with cable, then temperature limits are
105°C [221°F] dry and 60°C [140°F] wet.
To order, insert the additional letters Y and C in the appropri-
ate places in the standard catalog listing, as shown below:
LSA1A
standard, side-rotary plug-in switch
LSYAC1A
completely FC-sealed version of LSA1A
SPECIAL OPTIONS
Low Temperature Switches
All forms of HDLS limit switches are also available in low-tem-
perature construction. Design features include fluorosilicone
diaphragm, shaft seals, and external booth seal (where appli-
cable). If pre-wired with a cable, low temperature limits are
10°C [14°F] flex and 30°C [22°F] non-flex.
To order, insert the additional letters Y and B in the appropriate
places in the standard catalog listing, as shown below:
LSA1A
standard, side-rotary plug-in switch
LSYAB1A
low-temperature version of LSA1A
Conduit Openings
For conduit openings other than 1/2NPT and 3/4NPT, subsi-
tute the following after LS in the catalog listing:
LS3 PG13,5
LS4 20 mm
LSA1A
side rotary with 1/214 NPT conduit
LS4A1A
side rotary with 20 mm conduit
Table 2. Temperature Limits
Standard HDLS Low Temperature HDLS
(Fluorosilicone Sealed): Y_B
High Temperature HDLS
(Fluorocarbon Sealed)*: Y_C
Low Limit High Limit Low Limit High Limit Low Limit High
Limit
12°C
[10°F]
1°C
[30°F]
93°C
[200°F]
121°C
[250°F]
40°C
[40°F]
29°C
[20°F]
93°C
[200°F]
121°C
[250°F]
12°C
[10°F]
1°C
[30°F]
121°C
[250°F]
LSA - Side Rotary Momentary
X X X X X X
LSB - Top Rotary
X X X X X X
LSC - Top Plain Plunger
X X X X X X
LSD - Top Roller Plunger
X X X X X X
LSE - Side Plain Plunger
X X X X X X
LSF - Side Roller Plunger
X X X X X X
LSG - Side Plunger, Maintained
X X X X X X
LSH - Side Rotary, Low PT, Low Torque
X X X X X X
LSJ - Wobble Stick
X X X X X X
LSK - Cat Whisker
X X X X X X
LSL - Side Rotary, Sequence
X X X X X X
LSM - Side Rotary, Center Neutral
X X X X X X
LSN - Side Rotary, Maintained
X X X X X X
LSP - Side Rotary, Low Pretravel
X X X X X X
LSR - Side Rotary, Low Torque
X X X X X X
LSU - 5º Low Pretravel
X X X X X X
LSV - Top Adjustable Plunger
X X X X X X
LSW - Side Adjustable Plunger
X X X X X X
* For HDLS application wherein the upper temperature limit is normally above 93°C [200°F], much longer switch life can be obtained by using
completely fluorocarbon-sealed switches rather than standard HDLS.