Datasheet
Sensing and Internet of Things 13
MICRO SWITCH Heavy-Duty Limit Switch, HDLS Series
Table 5. Side Rotary • MICRO SWITCH HDLS Series Order Guide/Recommended Listings
Maint.
Contact
(LSQ)
Maint. Contact
(LSN)
Center Neutral
(LSM)
Sequence Action
(LSL)
Description
Maint.
360° Alt.
Action
Maintained,
2-pos
1,2
. Std.
Center Neutral
(Pole 1 operates
CCW; Pole 2
operates CW)
Sequential
(Pole 1 operates
before Pole 2, either
CW, CCW, or both)
SPDT SPDT DPDT DPDT DPDT
Contact closed n
Contact open o
1-2
3-4
0°
0°
90°
Maintained
Contact
1
2
3
4
180°
270°
85°
0°
25°
65°
Maintained
Contact
1
2
3
4
1-2
3-4
3-4
1-2
85°
0°
25°
65°
Maintained
Contact
1-2/5-6
3-4/7-8
3-4/7-8
1-2/5-6
1
2
3
4
5
6
7
8
18°
1-2
3-4
0°
8°
8°
5-6
7-8
7-8
5-6
18°
3-4
1-2
75°
75°
0°
1-2
3-4
5-6
7-8
75°
0°
15°
25°
7-8
5-6
3-4
1-2
20°
10°
Pretravel
65° max. 65° max. 18° max.
Pole 1: 15°
Pole 2: add’l 10°
Different. travel
40° max. 40° max. 10° max. each pole: 5°
Overtravel
20° min. 20° min. 57° min. 48° min.
Oper. torque
0,45 Nm [4 in-lb] 0,45 Nm [4 in-lb] 0,45 Nm [4 in-lb]
Action
Maintained
CW & CCW (Momentary)
Op. temp range
6
1°C to 121°C [30°F to 250°F]
(for low temp, high temp, or preleaded versions, see pages 89)
12°C to 121°C
[10°F to 250°F]
(for low temp, high temp, or pre-
leaded versions, see pages 89)
Circuitry Contacts Body Style
5
Conduit
(NPT)
Options
SPDT
SPDT
Double Break
Silver Plug-in 0.5 in LSQ300 LSN1A
Gold
3
Plug-in 0.5 in – LSN1E
Silver Plug-in 0.5 in
120 V Ind. lite
4
– LSN5A
Silver Plug-in 0.5 in
240 V Ind. lite
4
– LSN8A
Silver Non-
plug-in
0.5 in – LSN3K
DPDT
DPDT
Double Break
Silver Plug-in 0.75 in – LSN2B LSM2D LSL2C
Silver Plug-in 0.5 in – LSN6B LSM6D LSL6C
Gold
3
Plug-in 0.5 in – – LSM6U –
Silver Non-
plug-in
0.75 in – LSN4L LSM4N LSL4M
Silver Non-
plug-in
0.5 in – LSN7L LSM7N LSL7M
1
Mechanical trip before electrical trip.
2
Total travel is approximately 80° max. Maintained contact switch normally used with LSZ53 yoke actuator.
3
Gold-plated contacts
4
Use at voltage indicated for light. Wired to NO circuit. Upper temperature limit for lighted units is 93°C [200°F].
5
Plug-in listings include base receptacle
6
Completely fluorocarbon-sealed switches are preferred for temperatures above 93°C [200°F].
NOTE: Same polarity each pole.
To order a fluorocarbon sealed switch, insert the letters Y and C into the catalog listing as follows. The LSA1A limit switch is changed to a LSYAC1A limit switch.
To order a low temperature, fluorosilicone sealed switch, insert the letters Y and B into the catalog listing as follows. The LSA1A limit switch is changed to a LSYAB1A
limit switch.
POLE 1 POLE 2