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WL-N / WL

Two-circuit Limit Switch

WL-N / WL

Two-circuit limit switches that can be selected to match the operating environment and application

General-purpose/Environment-resistant Switches

Ratings

Wiring Specifications

Screw terminal types

Standard-load Switches (excluding micro-load Switches)

Item Rated voltage
(V)
Non-inductive load (A) Inductive load (A)
Resistive load Lamp load Inductive load Motor load
NC NO NC NO NC NO NC NO
Basic AC 125
250
500
10
10
10
3
2
1.5
1.5
1
0.8
10
10
3
5
3
1.5
2.5
1.5
0.8
DC 8
14
30
125
250
10
10
6
0.8
0.4
6
6
4
0.2
0.1
3
3
3
0.2
0.1
10
10
6
0.8
0.4
6
6
4
0.2
0.1
High-sensitivity
High-precision *1
AC 125
250
5
5
---- ---- ----
DC 125
250
0.4
0.2
---- ---- ----

Note: 1. The above figures are for steady-state currents.
         2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).
         3. A lamp load has an inrush current of 10 times the steady-state current.
         4. A motor load has an inrush current of 6 times the steady-state current.

Inrush current NC 30 A max. (15 A max. *1)
NO 20 A max. (10 A max. *1)

*1. For High-sensitivity and High-precision Switches.

Operating characteristics Minimum applicable load
Basic 5 VDC 1 mA, resistive load, P level
High-sensitivity,
High-precision
5 VDC 160 mA, resistive load, N level reference value

Micro-load Switches (Refer to these ratings before using the product.)

Rated voltage (V) Rated current (A) - Resistive load
AC125 0.1
DC 30

Note: The load is a resistive load.

Operation in the following ranges will produce optimum performance.

Recommended load range 5 to 30 VDC
0.16 to 100 mA

WL-N / WL Specifications 13

Operating characteristics Minimum applicable load
High-sensitivity,
High-precision
5 VDC 1 mA N level reference value

Direct-wired connector and Pre-wired Connector type

Item Rated voltage
(V)
Non-inductive load (A) Inductive load (A)
Resistive load Lamp load Inductive load Motor load
NC NO NC NO NC NO NC NO
Basic AC 115 3 3 1.5 3 3 2.5
DC 12
DC 24
DC 115
3
3
0.8
3
3
0.2
3
3
0.8
3
3
0.2
High-sensitivity
High-precision *1
AC 115 3 ---- ---- ----
DC 115 0.4 ---- ---- ----

Note: 1. The above figures are for steady-state currents.
         2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).
         3. A lamp load has an inrush current of 10 times the steady-state current.
         4. A motor load has an inrush current of 6 times the steady-state current.

Inrush current NC 3 A max.
NO 3 A max.

Operating characteristics Minimum applicable load
Basic 5 VDC 1 mA, resistive load, P level
High-sensitivity,
High-precision
5 VDC 160 mA, RESISTIVE Load, N level reference value

Operation indicator Switches

Operation Indicator

Model Max. rated voltage (V) Leakage current (mA)
WL-LE-N
WL-LE
Neon lamp 125 VAC Approx. 0.6
250 AC Approx. 1.9
WL-LD-N
WL-LW-N
WL-LD
LED 10 to 24 VAC/DC Approx. 0.4
115 VAC/DC Approx. 0.5

Characteristics

Degree of protection IP67
Durability *1 Mechanical 15,000,000 operations min. *2
Electrical 750,000 operations min. (3 A at 250 VAC, resistive load) *3
Operating speed 1 mm to 1 m/s (for WLCA2-N)
Operating
frequency
Mechanical 120 operations/minute min.
Electrical 30 operations/minute min.
Rated frequency 50/60 Hz
Insulation resistance 100 MΩ min. (at 500 VDC)
Contact resistance 25 mΩ max. (initial value for the built-in switch when tested alone)
Dielectric
strength
Between terminals of the same polarity 1,000 VAC (600 VAC) 50/60 Hz 1 min
Between currentcarrying metal part and ground 2,200 VAC (1,500 VAC) 50/60 Hz 1 min *5
Between each terminal and non-currentcarrying metal part 2,200 VAC (1,500 VAC) 50/60 Hz 1 min *5
Vibration
resistance
Malfunction 10 to 55 hz, 1.5-mm double amplitude *6
Shock
resistance
Destruction 1,000 m/s2 max.
Malfunction 300 m/s2 *6
Ambient operating temperature -10 to +80°C (with no icing) *7
Ambient operating humidity 35% to 95% RH
Weight Approx. 255 g (for WLCA2-N)

Note: 1. The above figures are initial values.
         2. The figures in parentheses for dielectric strength are those for the high-sensitivity and high-precision switches
             models.
*1. The values are calculated at an operating temperature of +5°C to +35°C, and an operating humidity of 40% to 70% RH.
      Contact your OMRON sales representative for more detailed information on other operating environments.
*2. High-sensitivity models and Flexible Rod models: 10 million operations min.
      500,000 operations min. for Weather-resistant models.
*3. High-sensitivity models, High-precision models, and Weatherproof models are 500,000 operations min.
      Micro-load models are 1 million operations min.
      Contact your OMRON representative for information on Airtight models and Hermetic models.
*4. Micro-load models and Weather-proof models are 50 mΩ or less (default value, built-in switch only).
*5. Sensor I/O connector type is 1,500 V.
*6. Except Flexible Rod models. Micro-load models are 200 m/s2 max.
*7. For low-temperature models this is –40°C to +40°C (with no icing).
     For heat-resistant models the range is +5°C to +120°C.

Spatter-prevention Switches

Ratings

Wiring Specifications

Screw terminal types

Item Rated voltage (V) Non-inductive load (A) Inductive load (A)
Resistive load Lamp load Inductive load Motor load
NC NO NC NO NC NO NC NO
WL[]-LES-N AC 125
250
10 (5)
10 (5)
3
2
1.5
1
10
10
5
3
2.5
1.5
WL[]-LDS-N AC 115 10 (5) 3 1.5 10 5 2.5
DC 12
24
115
10
6
0.8 (0.4)
6
4
0.2
3
3
0.2
10
6
0.8
6
4
0.2

Note: 1. The above figures are for steady-state currents.
         2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).
         3. A lamp load has an inrush current of 10 times the steady-state current.
         4. A motor load has an inrush current of 6 times the steady-state current.
         5. The figures in parentheses for resistive load are those for the high-sensitivity and high-precision switches models.

Inrush current NC 30 A max. (15 A max. *)
NO 20 A max. (10 A max. *)

* For High-sensitivity and High-precision Switches.

Operating characteristics Minimum applicable load
Basic 5 VDC 1 mA, resistive load, P level
High-sensitivity,
High-precision
5 VDC 160 mA, Resistive load, N level reference value

Direct-wired connector and Pre-wired Connector type

Item Rated voltage
(V)
Non-inductive load (A) Inductive load (A)
Resistive load Lamp load Inductive load Motor load
NC NO NC NO NC NO NC NO
Basic AC 115 3 3 1.5 3 3 2.5
DC 12
24
115
3
3
0.8
3
3
0.2
3
3
0.8
3
3
0.2
High-sensitivity
High-precision *1
AC 115 3 ---- ---- ----
DC 115 0.4 ---- ---- ----

Note: 1. The above figures are for steady-state currents.
         2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).
         3. A lamp load has an inrush current of 10 times the steady-state current.
         4. A motor load has an inrush current of 6 times the steady-state current.

Inrush current NC 3 A max.
NO 3 A max.

Operating characteristics Minimum applicable load
Basic 5 VDC 1 mA, resistive load, P level
High-sensitivity,
High-precision
5 VDC 160 mA, Resistive load, N level reference value

Operation indicator Switches

Operation Indicator

Model Max. rated voltage (V) Leakage current (mA)
WL-LES-N
WL-LE
Neon lamp 125 VAC Approx. 0.6
250 VAC Approx. 1.9
WL-LDS-N
WL-LD
LED 10 to 24 VAC/DC Approx. 0.4
115 VAC/DC Approx. 0.5

Characteristics

Degree of protection IP67
Durability *1 Mechanical 15,000,000 operations min. *2
Electrical 750,000 operations min. (3 A at 250 VAC, resistive load) *3
Operating speed 1 mm to 1 m/s (in case of WLCA2-LDS-N)
Operating
frequency
Mechanical 120 operations/minute min.
Electrical 30 operations/minute min.
Rated frequency 50/60 Hz
Insulation resistance 100 MΩ min. (at 500 VDC)
Contact resistance 25 mΩ max. (initial value for the built-in switch)
Dielectric
strength
Between terminals of the same
polarity
1,000 VAC (600 VAC) 50/60 Hz 1 min
Between currentcarrying metal part
and ground
2,200 VAC (1,500 VAC) 50/60 Hz 1 min *4
Between each terminal and non-
currentcarrying metal part
2,200 VAC (1,500 VAC) 50/60 Hz 1 min *4
Vibration
resistance
Malfunction 10 to 55 hz, 1.5-mm double amplitude
Shock
resistance
Destruction 1,000 m/s2 max.
Malfunction 300 m/s2 max.
Ambient operating temperature -10 to +80°C (with no icing)
Ambient operating humidity 35% to 95% RH
Weight Approx. 255 g (in case of WLCA2-LDS-N)

Note: 1. The above figures are initial values.
         2. The figures in parentheses for dielectric strength are those for the high-sensitivity and high-precision switches
             models.
*1. The values are calculated at an operating temperature of +5°C to +35°C, and an operating humidity of 40% to 70% RH.
      Contact your OMRON sales representative for more detailed information on other operating environments.
*2. High-sensitivity models are 10 million operations min.
*3. High-sensitivity models and High-precision models are 500,000 operations min.
      Micro-load models are 10 million operations min.
      Contact your OMRON representative for information on Airtight switches.
*4. Sensor I/O connector type is 1,500 V.

Long-life Switches

Ratings

Wiring Specifications

Screw terminal type

Item Rated voltage
(V)
Non-inductive load (A) Inductive load (A)
Resistive load Lamp load Inductive load Motor load
NC NO NC NO NC NO NC NO
Basic AC 115 10 3 1.5 10 5 2.5
DC 12
24
115
10
6
0.8
6
4
0.2
3
3
0.2
10
6
0.8
6
4
0.2
High-sensitivity
High-precision *
AC 115 5
DC 115 0.4

Note: 1. The above figures are for steady-state currents.
         2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).
         3. A lamp load has an inrush current of 10 times the steady-state current.
             A motor load has an inrush current of 6 times the steady-state current.

Inrush current NC 30 A max. (15 A max. *)
NO 20 A max. (10 A max. *)

* For High-sensitivity and High-precision Switches.

Operating characteristics Minimum applicable load
Basic 5 VDC 1 mA, resistive load, P level
High-sensitivity,
High-precision
5 VDC 160 mA, Resistive load, N level reference value

Direct-wired connector and Pre-wired Connector type

Item Rated voltage
(V)
Non-inductive load (A) Inductive load (A)
Resistive load Lamp load Inductive load Motor load
NC NO NC NO NC NO NC NO
Basic AC 115 3 3 1.5 3 3 2.5
DC 12
24
115
3
3
0.8
3
3
0.2
3
3
0.8
3
3
0.2
High-sensitivity
High-precision *1
AC 115 3 ---- ---- ----
DC 115 0.4 ---- ---- ----

Note: 1. The above figures are for steady-state currents.
         2. Inductive loads have a power factor of 0.4 min. (AC) and a time constant of 7 ms max. (DC).
         3. A lamp load has an inrush current of 10 times the steady-state current.
         4. A motor load has an inrush current of 6 times the steady-state current.

Inrush current NC 3 A max.
NO 3 A max.

Operating characteristics Minimum applicable load
Basic 5 VDC 1 mA, resistive load, P level
High-sensitivity,
High-precision
5 VDC 160 mA, Resistive load, N level reference value

Operation indicator Switches

Operation Indicator

Model Max. rated voltage (V) Leakage current (mA)
WL-LD-N
WL-LW-N
WL-LD
LED 10 to 24 VAC/DC Approx. 0.4
115 VAC/DC Approx. 0.5

Characteristics

Degree of protection IP67
Durability
*1
Mechanical 30,000,000 operations min.
Electrical 30,000,000 operations min. (10 mA at 24 VDC, resistive load)
750,000 operations min. (3 A at 115 VAC, resistive load), but for high-
precision models:
High-sensitivity and High-precision Switches: 500,000 operations min.
Operating speed 1 mm to 1 m/s (in case of WLMCA2-LD-N)
Operating
frequency
Mechanical 120 operations/min.
Electrical 30 operations/min.
Rated frequency 50/60 Hz
Insulation resistance 100 MΩ min. (at 500 VDC)
Contact resistance 25 mΩ max. (initial value for the built-in switch when tested alone) *2
Dielectric
strength
(50/60 Hz
for 1 min)
Between terminals of
the same polarity
1,000 VAC (600 VAC), 50/60 Hz 1 min
Between currentcarrying
metal part and ground
2,200 VAC (1,500 VAC) 50/60 Hz 1 min *3
Between each terminal
and non-currentcarrying
metal part
2,200 VAC (1,500 VAC) 50/60 Hz 1 min *3
Vibration
resistance
Malfunction 10 to 55 Hz, 1.5-mm double amplitude
Shock
resistance
Destruction 1,000 m/s2 max.
Malfunction 300 m/s2 max. *4
Ambient operating temperature -10 to +80°C (with no icing)
Ambient operating humidity 35% to 95% RH
Weight Approx. 255 g (in case of WLMCA2-LD-N)

Note: 1. The above figures are initial values.
         2. The figures in parentheses for dielectric strength are those for the high-sensitivity and high-precision switches
             models.
*1. The values are calculated at an operating temperature of +5°C to +35°C, and an operating humidity of 40% to 70% RH.
      Contact your OMRON sales representative for more detailed information on other operating environments.
*2. For microload models, the contact resistance is 50 mΩ max. (initial value for built-in switch).
*3. Sensor I/O connector models are 1,500 V.
*4. Micro-load models are 200 m/s2 max.

General-purpose/Environment-resistant/Spatter-prevention/Long-life Switches

Approved Standards

Agency Standard File No. Approved models
UL UL508 Contact your OMRON representative for
information
Contact your OMRON representative for
information
CSA cUL CSA C22.2 No.14
TÜV Rheinland EN60947-5-1
CCC (CQC) GB14048.5

Approved Standard Ratings

UL/cUL, CSA (UL508, CSA C22.2 No.14)

Specifications Approved Standards
Indicator Sensor I/O connectors Item
No indicator No Connector Basic Switches A600
1 A, 125 VDC
High-sensitivity or high-precision A600
Pre-wired Connector (AC) Basic, high-sensitivity or high-precision C300
3 A, 250 VAC
Pre-wired Connector (DC)
Direct-wired Connector (DC)
Basic Switches 1 A, 125 VDC
High-sensitivity or high-precision 0.8 A, 125 VDC
Neon lamp No Connector Basic Switches A300
10 A, 250 VAC
High-sensitivity or high-precision
Pre-wired Connector (AC) Basic, high-sensitivity or high-precision C300
3 A, 250 VAC
LED No Connector Basic Switches A150
10 A, 115 VAC
1 A, 115 VDC
High-sensitivity or high-precision A150
10 A, 115 VAC
0.8 A, 115 VDC
Pre-wired Connector (AC) Basic, high-sensitivity or high-precision C150
3 A, 115 VAC
Pre-wired Connector (DC)
Direct-wired Connector (DC)
Basic Switches 1 A, 115 VDC
High-sensitivity or high-precision 0.8 A, 115 VDC

A600 Authentication conditions

Rated voltage Energizing current Current (A) Volt-ampere (VA)
Make Break Make Break
120 VAC
240 VAC
480 VAC
600 VAC
10 A 60
30
15
12
6
3
1.5
1.2
7,200 720

C300 Authentication conditions

Rated voltage Energizing current Current (A) Volt-ampere (VA)
Make Break Make Break
120 VAC
240 VAC
2.5 A 15
7.5
1.5
0.75
1,800 180

A300 Authentication conditions

Rated voltage Energizing current Current (A) Volt-ampere (VA)
Make Break Make Break
120 VAC
240 VAC
10 A 60
30
6
3
7,200 720

A150 Authentication conditions

Rated voltage Energizing current Current (A) Volt-ampere (VA)
Make Break Make Break
120 VAC 10 A 60 6 7,200 720

C150 Authentication conditions

Rated voltage Energizing current Current (A) Volt-ampere (VA)
Make Break Make Break
120 VAC 2.5 A 15 1.5 1,800 180

TÜV (EN 60947-5-1)

(Certification Only for Switches with Ground Terminals and DC Switches with Connectors)

Authentication conditions Specification
With ground terminals With DC Connector
No indicator Neon lamp LED
Working load category AC-15 DC-12 AC-15 AC-15 DC-12 DC-12
Rated working voltage (Ue) 250 V 48 V 250 V 115 V 48 V 48 V
Rated working current (Ie) 2 A
Conditional short-circuit current 100 A
Short-circuit protective device (SCPD) 10 A, fuse type gG
Rated insulation voltage (Ui) 250 V 48 V
Rated impulse dielectric strength (Uimp) 4 kV 800 V
Pollution degree 3
Electric shock protection class Class I Class III

CCC (GB14048.5)

Authentication conditions Specification
No indicator Neon
lamp
LED With DC
Connector
With AC
Connector
Working load category AC-15 DC-13 AC-15 AC-15 DC-13 DC-13 AC-15
Rated working voltage (Ue) 250 V 48 V 250 V 250 V 48 V 48 V 250 V
Rated working current (Ie) 2 A
Conditional short-circuit current 1000 A
Short-circuit protective device (SCPD) 10 A, fuse type gG
Rated insulation voltage (Ui) 250 V