Description
Generalpurpose Switches
Ratings
Screw terminals
Without Operation Indicator
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  125  10  3  1.5  10  5  2.5  
250  10  2  1  10  3  1.5  
500  10  1.5  0.8  3  1.5  0.8  
DC  8  10  6  3  10  6  
14  10  6  3  10  6  
30  6  4  3  6  4  
125  0.8  0.2  0.2  0.8  0.2  
250  0.4  0.1  0.1  0.4  0.1 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG) Horizontal plunger models (WLSD[]) 

Resistive load  
Voltage (V)  NC  NO  
AC  125  5  
250  5  
DC  125  0.4  
250  0.2 
With Operation Indicator (LED)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  115  10  3  1.5  10  5  2.5  
DC  12  10  6  3  10  6  
24  6  4  3  6  4  
48  3  2  1.5  3  0.2  
115  0.8  0.2  0.8  0.1 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG) Horizontal plunger models (WLSD[]) 

Resistive load  
Voltage (V)  NC  NO  
AC  115  5  
DC  115  0.4 
With Operation Indicators (Neon Lamps)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  125  10  3  1.5  10  5  2.5  
250  10  2  1  10  3  1.5 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG) Horizontal plunger models (WLSD[]) 

Resistive load  
Voltage (V)  NC  NO  
AC  125  5  
250  5 
Note: 1. The above figures are for steadystate 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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
Allowable Inrush Current/Minimum Applicable Load
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) Horizontal plunger models (WLSD[]) 


Inrush current  NC  30 A max.  15 A max. 
NO  20 A max.  10 A max.  
Minimum applicable load  5 VDC 1 mA, resistive load, P level  5 VDC 1 mA, resistive load, P level 
Operation Indicator
Operation indicator type  LED  Neon lamp 

Rated voltage  10 to 115 VAC/DC  125 to 250 VAC 
Leakage current (Reference value) 
Approx. 0.4 mA at 10 VAC/DC Approx. 0.5 mA at 115 VAC/DC 
Approx. 0.6 mA at 125 VAC Approx. 1.9 mA at 250 VAC 
Directwired connector and Prewired Connector Type
Connector DC Specifications: With Operation Indicators (LEDs)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
DC  12  3  3  3  3  
24  3  3  3  3  
48  4  2  1.5  3  2  
115  0.8  0.2  0.2  0.8  0.2 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG) Horizontal plunger models (WLSD[]) 

Resistive load  
Voltage (V)  NC  NO  
DC  115  0.4 
Connector AC Specifications: With Operation Indicators (LEDs)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  115  3  3  1.5  3  3  2.5 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG) Horizontal plunger models (WLSD[]) 

Resistive load  
Voltage (V)  NC  NO  
AC  115  3 
Note: 1. The above figures are for steadystate 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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
Minimum Applicable Load
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) Horizontal plunger models (WLSD[]) 

Minimum applicable load  5 VDC 1 mA, resistive load, P level  5 VDC 1 mA, resistive load, P level 
Operation Indicator
Operation indicator type  LED  Neon lamp 

Rated voltage  10 to 115 VAC/DC  125 to 250 VAC 
Leakage current (Reference value) 
Approx. 0.4 mA at 10 VAC/DC Approx. 0.5 mA at 115 VAC/DC 
Approx. 0.6 mA at 125 VAC Approx. 1.9 mA at 250 VAC 
Characteristics
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) Horizontal plunger models (WLSD[]) 


Permissible operating frequency 
Mechanical  120 operations/minute  
Electrical  30 operations/minute  
Rated frequency  50/60 Hz  
Permissible operating speed  1 mm/s to 1 m/s (in case of WLCA2N)  
Insulation resistance  100 MΩ min. (at 500 VDC)  
Contact resistance  25 mΩ max. (initial value for the builtin switch)  
Vibration resistance  Malfunction  10 to 55 Hz, 1.5mm double amplitude  
Shock  Destruction  1,000 m/s^{2} max.  
Malfunction  300 m/s^{2} max. *2  
Durability *1  Mechanical  15,000,000 operations min.  10,000,000 operations min. *4 
Electrical  750,000 operations min. (3 A at 250 VAC, resistive load), but for high precision models: *3 
500,000 operations min. (3 A at 250 VAC, resistive load), but for high precision models: *3 

Ambient operating temperature  10 to +80°C (with no icing)  
Ambient operating humidity  35 to 95%RH  
Degree of protection  IP67  
Weight  Approx. 255 g (in case of WLCA2N)  Approx. 270 g (in case of WLGCA2) 
Note: The above figures are initial values.
*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. Except Switches with Flexible Rod Actuators.
*3. In case of Screw terminals without operation indicators.
*4. 15,000,000 operations min. for horizontal plunger 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. Except Switches with Flexible Rod Actuators.
*3. In case of Screw terminals without operation indicators.
*4. 15,000,000 operations min. for horizontal plunger models.
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Wiring Specifications  Screw terminals 
Directwire connector/ Prewired Connector Models 
Screw terminals 
Directwire connector/ Prewired Connector Models 

Dielectric strength 
Between terminals of the same polarity 
1,000 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
Between current carrying metal part and ground 
2,200 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 

Between each terminal and non currentcarrying metal part 
2,200 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
* Excluding those with operation indicators.
Environmentresistant Limit Switches
Ratings
Screw terminals/Directwire cable
Without Operation Indicator
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  125  10  3  1.5  10  5  2.5  
250  10  2  1  10  3  1.5  
500  10  1.5  0.8  3  1.5  0.8  
DC  8  10  6  3  10  6  
14  10  6  3  10  6  
30  6  4  3  6  4  
125  0.8  0.2  0.2  0.8  0.2  
250  0.4  0.1  0.1  0.4  0.1 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
AC  125  5  
250  5  
DC  125  0.4  
250  0.2 
With Operation Indicator (LED)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  115  10  3  1.5  10  5  2.5  
DC  12  10  6  3  10  6  
24  6  4  3  6  4  
48  3  2  1.5  3  0.2  
115  0.8  0.2  0.8  0.1 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
AC  115  5  
DC  115  0.4 
With Operation Indicators (Neon Lamps)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  125  10  3  1.5  10  5  2.5  
250  10  2  1  10  3  1.5 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
AC  125  5  
250  5 
Note: 1. The above figures are for steadystate 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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
Allowable Inrush Current/ Minimum applicable load
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Inrush current  NC  30 A max.  15 A max. 
NO  20 A max.  10 A max.  
Minimum applicable load  5 VDC 1 mA, resistive load, P level  5 VDC 1 mA, resistive load, P level 
Operation Indicator
Operation indicator type  LED  Neon lamp 

Rated voltage  10 to 115 VAC/DC  125 to 250 VAC 
Leakage current (Reference value) 
Approx. 0.4 mA at 10 VAC/DC Approx. 0.5 mA at 115 VAC/DC 
Approx. 0.6 mA at 125 VAC Approx. 1.9 mA at 250 VAC 
Characteristics
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Permissible operating frequency 
Mechanical  120 operations/minute  
Electrical  30 operations/minute  
Rated frequency  50/60 Hz  
Permissible operating speed  1 mm/s to 1 m/s (in case of WLCA2N)  
Insulation resistance  100 MΩ min. (at 500 VDC)  
Contact resistance  25 mΩ or less (default value, builtin switch only)  
Vibration resistance  Malfunction  10 to 55 Hz, 1.5mm double amplitude *2  
Shock  Destruction  1,000 m/s^{2} max.  
Malfunction  300m/s^{2} max. *2  
Durability *1  Mechanical  15,000,000 operations min.  10,000,000 operations min. *3 
Electrical  750,000 operations min. (3 A at 250 VAC, resistive load) *4 
500,000 operations min. (3 A at 250 VAC, resistive load) *4 

Ambient operating temperature  10 to +80°C (with no icing) *5  
Ambient operating humidity  35 to 95%RH  
Degree of protection  IP67  
Weight  Approx. 250 g (for WLCLTHN)  Approx. 250 g (for WLCLTHN) 
Note: The above figures are initial values.
*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. Except Switches with Flexible Rod Actuators.
*3. 500,000 operations min. for Weatherresistant models.
*4. In case of models without operation indicators.
*5. For lowtemperature models this is 40°C to +40°C (with no icing). For heatresistant models the range is +5°C to
120°C.
*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. Except Switches with Flexible Rod Actuators.
*3. 500,000 operations min. for Weatherresistant models.
*4. In case of models without operation indicators.
*5. For lowtemperature models this is 40°C to +40°C (with no icing). For heatresistant models the range is +5°C to
120°C.
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Wiring Specifications  Screw terminals/ Directwire cable models 
Screw terminals/ Directwire cable models 

Dielectric strength 
Between terminals of the same polarity  1,000 VAC, 50/60 Hz for 1 min *  600 VAC, 50/60 Hz for 1 min * 
Between currentcarrying metal part and ground 
2,200 VAC, 50/60 Hz for 1 min  1,500 VAC, 50/60 Hz for 1 min  
Between each terminal and non currentcarrying metal part 
2,200 VAC, 50/60 Hz for 1 min  1,500 VAC, 50/60 Hz for 1 min 
* Except models with operation indicators.
Spatterprevention Switches
Ratings
Screw terminals
With Operation Indicator
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  115  10  3  1.5  10  5  2.5  
DC  12  10  6  3  10  6  
24  6  4  3  6  4  
48  3  2  1.5  3  0.2  
115  0.8  0.2  0.8  0.1 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
AC  115  5  
DC  115  0.4 
With Operation Indicators (Neon Lamps)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  125  10  3  1.5  10  5  2.5  
250  10  2  1  10  3  1.5 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
AC  125  5  
250  5 
Note: 1. The above figures are for steadystate 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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
Allowable Inrush Current/Minimum Applicable Load
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Inrush current  NC  30 A max.  15 A max. 
NO  20 A max.  10 A max.  
Minimum applicable load  5 VDC 1 mA, resistive load, P level  5 VDC 1 mA, resistive load, P level 
Operation Indicator
Operation indicator type  LED  Neon lamp 

Rated voltage  10 to 115 VAC/DC  125 to 250 VAC 
Leakage current (Reference value) 
Approx. 0.4 mA at 10 VAC/DC Approx. 0.5 mA at 115 VAC/DC 
Approx. 0.6 mA at 125 VAC Approx. 1.9 mA at 250 VAC 
Prewired connectors
Connector DC Specifications: With Operation Indicators (LEDs)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
DC  12  3  3  3  3  
24  3  3  3  3  
48  4  2  1.5  3  2  
115  0.8  0.2  0.2  0.8  0.2 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
DC  115  0.4 
Note: 1. The above figures are for steadystate 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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current
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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current
Minimum Applicable Load
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 

Minimum applicable load  5 VDC 1 mA, resistive load, P level  5 VDC 1 mA, resistive load, P level 
Operation Indicator
Operation indicator type  LED  Neon lamp 

Rated voltage  10 to 115 VAC/DC  125 to 250 VAC 
Leakage current (Reference value) 
Approx. 0.4 mA at 10 VAC/DC; Approx. 0.5 mA at 115 VAC/DC 
Approx. 0.6 mA at 125 VAC; Approx. 1.9 mA at 250 VAC 
Characteristics
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Permissible operating frequency 
Mechanical  120 operations/minute  
Electrical  30 operations/minute  
Rated frequency  50/60 Hz  
Permissible operating speed  1 mm/s to 1 m/s (for WLCA2LDSN)  
Insulation resistance  100 MΩ min. (at 500 VDC)  
Contact resistance  25 mΩ max. (initial value for the builtin switch)  
Vibration resistance  Malfunction  10 to 55 Hz, 1.5mm double amplitude  
Shock  Destruction  1,000 m/s^{2} max.  
Malfunction  300 m/s^{2} max.  
Durability *  Mechanical  15,000,000 operations min.  10,000,000 operations min. 
Electrical  750,000 operations min. (3 A at 115 VAC, resistive load) *2 
500,000 operations min. (3 A at 115 VAC, resistive load) *2 

Ambient operating temperature  10 to +80°C (with no icing)  
Ambient operating humidity  35 to 95%RH  
Degree of protection  IP67  
Weight  Approx. 255 g (in case of WLCA2 LDSN) 
Approx. 270 g (in case of WLGCA2 LDS) 
Note: The above figures are initial values.
*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. In case of models with operation indicators (LEDs).
*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. In case of models with operation indicators (LEDs).
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Wiring Specifications  Screw terminals 
Directwire connector and Prewired Connector Models 
Screw terminals 
Directwire connector and Prewired Connector Models 

Dielectric strength 
Between terminals of the same polarity 
1,000 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
Between current carrying metal part and ground 
2,200 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 

Between each terminal and non current carrying metal part 
2,200 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
* Excluding those with operation indicators.
Longlife Switches
Ratings
Screw terminals
With Operation Indicator
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  115  10  3  1.5  10  5  2.5  
DC  12  10  6  3  10  6  
24  6  4  3  6  4  
48  3  2  1.5  3  0.2  
115  0.8  0.2  0.8  0.1 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
AC  115  5  
DC  115  0.4 
Note: 1. The above figures are for steadystate 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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
Allowable Inrush Current/Minimum Applicable Load
Operating characteristics type  Basic models (WLN)  Highsensitivity/ Highprecision models (WLG) 


Inrush current  NC  30 A max.  15 A max. 
NO  20 A max.  10 A max.  
Minimum applicable load  5 VDC 1 mA, resistive load, P level  5 VDC 1 mA, resistive load, P level 
Operation Indicator
Operation indicator type  LED  Neon lamp 

Rated voltage  10 to 115 VAC/DC  125 to 250 VAC 
Leakage current (Reference value) 
Approx. 0.4 mA at 10 VAC/DC; Approx. 0.5 mA at 115 VAC/DC 
Approx. 0.6 mA at 125 VAC; Approx. 1.9 mA at 250 VAC 
Directwire connector and Prewired Connector Models Type
DC Connector: With Operation Indicators (LEDs)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
DC  12  3  3  3  3  
24  3  3  3  3  
48  4  2  1.5  3  2  
115  0.8  0.2  0.2  0.8  0.2 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
DC  115  0.4 
AC Connector: With Operation Indicators (LEDs)
Basic models (WLN)
Ratings  Noninductive load (A)  Inductive load (A)  

Basic models (WLN)  Basic models (WLN)  
Resistive load  Lamp load  Inductive load  Motor load  
Voltage (V)  NC  NO  NC  NO  NC  NO  NC  NO  
AC  115  3  3  1.5  3  3  2.5 
Highsensitivity and Highprecision models (WLG)
Ratings  Noninductive load (A)  

Highsensitivity and Highprecision models (WLG)  
Resistive load  
Voltage (V)  NC  NO  
AC  115  3 
Note: 1. The above figures are for steadystate 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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
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 steadystate current.
4. A motor load has an inrush current of 6 times the steadystate current.
Minimum Applicable Load
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 

Minimum applicable load  5 VDC 1 mA, resistive load, P level  5 VDC 1 mA, resistive load, P level 
Operation Indicator
Operation indicator type  LED 

Rated voltage  10 to 115 VAC/DC 
Leakage current (Reference value) 
Approx. 0.4 mA at 10 VAC/DC; Approx. 0.5 mA at 115 VAC/DC 
Characteristics
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Permissible operating frequency 
Mechanical  120 operations/minute  
Electrical  30 operations/minute  
Rated frequency  50/60 Hz  
Permissible operating speed  1 mm/sec to 1 m/sec  
Insulation resistance  100 MΩ min. (at 500 VDC)  
Contact resistance  25 mΩ max. (initial value for the builtin switch)  
Vibration resistance  Malfunction  10 to 55 Hz, 1.5mm double amplitude  
Shock  Destruction  1,000 m/s^{2} max.  
Malfunction  300 m/s^{2} max.  
Durability *  Mechanical  30,000,000 operations min.  
Electrical  30,000,000 operations min. (10 mA at 24 VAC, resistive load) 750,000 operations min. (3 A at 115 VAC, resistive load) 
500,000 operations min. (3 A at 115 VAC, resistive load) 

Ambient operating temperature  10 to +80°C (with no icing)  
Ambient operating humidity  35 to 95%RH  
Degree of protection  IP67  
Weight  Approx. 255 g (in case of WLMCA2LDN) 
Approx. 270 g (in case of WLMGCA2LD) 
Note: The above figures are initial values.
* 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.
* 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.
Operating characteristics type  Basic models (WLN)  Highsensitivity and Highprecision models (WLG) 


Wiring Specifications  Screw terminals 
Directwire connector and Prewired Connector Models 
Screw terminals 
Directwire connector and Prewired Connector Models 

Dielectric strength 
Between terminals of the same polarity 
1,000 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
600 VAC, 50/60 Hz for 1 min * 
Between current carrying metal part and ground 
2,200 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 

Between each terminal and non currentcarrying metal part 
2,200 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
1,500 VAC, 50/60 Hz for 1 min 
* Excluding those with operation indicators.
Common Specifications
Generalpurpose/Environmentresistant/Spatterprevention/Longlife 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  EN6094751  
CCC (CQC)  GB/T14048.5 
Approved Standard Ratings
UL/cUL, CSA (UL508, CSA C22.2 No.14)
Specifications  Approved Standards 


Operation Indicator 
Sensor I/O connectors  Item  
No indicator  No Connector  Basic models  A600 1 A, 125 VDC 
Highsensitivity and Highprecision models  B600 0.5 A,125 VDC 

Prewired Connector (AC)  Basic, Highsensitivity or Highprecision models  C300 3 A, 250 VAC 

Prewired Connector (DC) Directwired Connector (DC) 
Basic models  1 A, 125 VDC  
Highsensitivity and Highprecision models  0.5 A, 125 VDC 

Neon lamp  No Connector  Basic models  A300 10 A, 250 VAC 
Highsensitivity and Highprecision models  B300 0.5 A, 250 VAC 

Prewired Connector (AC)  Basic, Highsensitivity or Highprecision models  C300 3 A, 250 VAC 

LED  No Connector  Basic models  A150 10 A, 115 VAC 1 A, 115 VDC 
Highsensitivity and Highprecision models  B150 5 A, 115 VAC 0.5 A, 115 VDC 

Prewired Connector (AC)  Basic, Highsensitivity or Highprecision models  C150 3 A, 115 VAC 

Prewired Connector (DC) Directwired Connector (DC) 
Basic models  1 A, 115 VDC  
Highsensitivity and Highprecision models  0.5 A, 115 VDC 
A600 Authentication conditions
Rated voltage  Carrying current  Current (A)  Voltampere (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  Carrying current  Current (A)  Voltampere (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  Carrying current  Current (A)  Voltampere (VA)  

Make  Break  Make  Break  
120 VAC 240 VAC 
10 A  60 30 
6 3 
7,200  720 
A150 Authentication conditions
Rated voltage  Carrying current  Current (A)  Voltampere (VA)  

Make  Break  Make  Break  
120 VAC  10 A  60  6  7,200  720 
C150 Authentication conditions
Rated voltage  Carrying current  Current (A)  Voltampere (VA)  

Make  Break  Make  Break  
120 VAC  2.5 A  15  1.5  1,800  180 
B600 Authentication conditions
Rated voltage  Carrying current  Current (A)  Voltampere (VA)  

Make  Break  Make  Break  
120 VAC 240 VAC 480 VAC 600 VAC 
5 A  30 15 7.5 6 
3 1.5 0.75 0.6 
3,600  360 
B300 Authentication conditions
Rated voltage  Carrying current  Current (A)  Voltampere (VA)  

Make  Break  Make  Break  
120 VAC 240 VAC 
5 A  30 15 
3 1.5 
3,600  360 
B150 Authentication conditions
Rated voltage  Carrying current  Current (A)  Voltampere (VA)  

Make  Break  Make  Break  
120 VAC  5 A  30  3  3,600  360 
TÜV (EN 6094751)
Authentication conditions  Specification  

Directwire cable type  With Prewired DC connector model 

No indicator  Neon lamp  LED  
Working load category  AC15  DC12  AC15  AC15  DC12  DC12 
Rated working voltage (Ue)  250 V  48 V  250 V  115 V  48 V  48 V 
Rated working current (Ie)  2 A  
Conditional shortcircuit current  100 A  
Shortcircuit 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 (GB/T14048.5)
Authentication conditions  Specification  

No indicator 
Neon lamp 
LED  With Prewired DC connector model 
With Prewired AC connector model 

Working load category  AC15  DC13  AC15  AC15  DC13  DC13  AC15 
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 shortcircuit current  1000 A  
Shortcircuit protective device (SCPD)  10 A, fuse type gG  
Rated insulation voltage (Ui)  250 V 
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