Global
These are navigation links to move inside this page.
SitemapTwo-circuit Limit Switch/Long-life Two-circuit Limit Switch
WL / WLM
Wide Range of Two-circuit Switches; Select One for the Operating Environment/Application
Data Sheet (3595KB)
Quick links to 'WL / WLM' page in your country / territory.
-
- Middle East
-
Please contact our European headquarters.
Get more support via Products links, such as manuals and CAD files.
WL / WLM Pick up
General-purpose/Weather-proof Switches
Ratings
Standard-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 models, overtravel models (except for high- sensitivity models), and high-precision models | 125 VAC 250 VAC 500 VAC | 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 | ||
| 8 VDC 14 VDC 30 VDC 125 VDC 250 VDC | 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 overtravel models | 125 VAC 250 VAC | 5 5 | --- | --- | --- | ||||
| 125 VDC 250 VDC | 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.
5.For PC loads, use the microload models.
| Inrush current | NC | 30 A max. (15 A max. *) |
| NO | 20 A max. (10 A max. *) |
*For high-sensitivity overtravel models.
| Minimum applicable load | 5 VDC 160 mA |
Microload Switches
(Refer to these ratings before using the product.)
| Rated voltage (V) | Rated current (A) - Resistive load |
| AC 125 | 0.1 |
| DC 30 |
Operation in the following ranges will produce optimum performance.
| Recommended load range | 5 to 30 VDC 0.5 to 100 mA |
| Recommended load range | 5 VDC 1 mA |
Characteristics
| Degree of protection | IP67 | |
| Durability *1 | Mechanical | 15,000,000 operations min. *2 |
| Electrical | 750,000 operations min. *3 | |
| Operating speed | 1 mm/s to 1 m/s (in case of WLCA2) | |
| 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) *6 | |
| Dielectric strength | Between terminals of the same polarity | 1,000 VAC (600 VAC), 50/60 Hz for 1 min |
| Between current-carrying metal part and ground | 2,200 VAC (1,500 VAC), 50/60 Hz for 1 min/Uimp 2.5 kV | |
| Between each terminal and non-current- carrying metal part | 2,200 VAC (1,500 VAC), 50/60 Hz for 1 min/Uimp 2.5 kV | |
| Rated insulation voltage (Ui) | 250 V (EN60947-5-1) | |
| Pollution degree (operating environment) | 3 (EN60947-5-1) | |
| Short-circuit protective device (SCPD) | 10 A, fuse type gG or gI (IEC60269) | |
| Conditional short-circuit current | 100 A (EN60947-5-1) | |
| Conventional enclosed thermal current (Ithe) | 10 A, 0.5 A (EN60947-5-1) | |
| Protection against electric shock | Class I | |
| Vibration resistance | Malfunction | 10 to 55 Hz, 1.5-mm double amplitude *4 |
| Shock resistance | Destruction | 1,000 m/s2 min. |
| Malfunction | 300 m/s2 min. *4 | |
| Ambient operating temperature | -10°C to +80°C (with no icing) *5 | |
| Ambient operating humidity | 35% to 95% RH | |
| Weight | Approx. 275 g (in case of WLCA2) | |
Note:
1.The above figures are initial values.
2.The figures in parentheses for dielectric strength are those for the high-sensitivity overtravel 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.Durability is 10,000,000 operations min. for general-purpose or high-sensitivity overtravel models, and for flexible rod models.
500,000 operations min. for weather-proof models.
*3.Durability is 500,000 operations min. for high-sensitivity models. All microload models are 1,000,000 operations min.
500,000 operations min. for weather-proof models.
*4.Except flexible rod models. The shock resistance (malfunction) for microload models is 200 m/s2 min.
*5.For low-temperature models this is –40°C to +40°C (with no icing). For heatresistant models the range is +5°C to +120°C.
*6.For microload models, the contact resistance is 50 mΩ max. (initial value for built-in switch).
Spatter-prevention Switches
Ratings
Screw terminals
| 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 | 125 VAC 250 VAC | 10 10 | 3 2 | 1.5 1 | 10 10 | 5 5 | 2.5 1.5 | ||
| WL[]-LDS | 115 VAC | 10 | 3 | 1.5 | 10 | 5 | 2.5 | ||
| 12 VDC 24 VDC 48 VDC | 10 6 3 | 6 4 2 | 3 3 1.5 | 10 6 3 | 6 4 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. |
| NO | 20 A max. | |
| Operating temperature | -10°C to +80°C (with no icing) | |
| Operating humidity | 35% to 95%RH max. | |
Characteristics
| Degree of protection | IP67 | |
| Durability *1 | Mechanical | 15,000,000 operations min. *2 |
| Electrical | 750,000 operations min. *3 | |
| Operating speed | 1 mm/s to 1 m/s (in case of WLCA2) | |
| 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 for 1 min |
| Between current-carrying metal part and ground | 2,200 VAC (1,500 VAC), 50/60 Hz for 1 min/Uimp 2.5 kV | |
| Between each terminal and non-current- carrying metal part | 2,200 VAC (1,500 VAC), 50/60 Hz for 1 min/Uimp 2.5 kV | |
| Rated insulation voltage (Ui) | 250 V (EN60947-5-1) | |
| Pollution degree (operating environment) | 3 (EN60947-5-1) | |
| Short-circuit protective device (SCPD) | 10 A, fuse type gG or gI (IEC60269) | |
| Conditional short-circuit current | 100 A (EN60947-5-1) | |
| Conventional enclosed thermal current (Ithe) | 10 A, 0.5 A (EN60947-5-1) | |
| Protection against electric shock | Class I | |
| Vibration resistance | Malfunction | 10 to 55 Hz, 1.5-mm double amplitude |
| Shock resistance | Destruction | 1,000 m/s2 min. |
| Malfunction | 300 m/s2 min. | |
| Ambient operating temperature | -10°C to +80°C (with no icing) | |
| Ambient operating humidity | 35% to 95%RH | |
| Weight | Approx. 275 g (in case of WLCA2) | |
Note:
1.The above figures are initial values.
2.The figures in parentheses for dielectric strength are those for the high-sensitivity overtravel 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.Durability is 10,000,000 operations min. for general-purpose or highsensitivity overtravel models.
*3.Durability is 500,000 operations min. for high-precision models. All microload models however, are 1,000,000 operations min.
Long-life Switches
Ratings
General Ratings (Refer to these ratings before using the product.)
Screw Terminal 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 models, overtravel models, (except for high- sensitivity models), and high-precision models | 115 AC | 10 | 3 | 1.5 | 10 | 5 | 2.5 | ||
| 12 DC 24 DC 48 DC 115 DC | 10 6 3 0.8 | 6 4 2 0.2 | 3 3 1.5 0.2 | 10 6 3 0.8 | 6 4 2 0.2 | ||||
| High-sensitivity overtravel models | 115 AC | 5 | --- | --- | --- | ||||
| 115 DC | 0.4 | --- | --- | --- | |||||
| Inrush current | NC | 30 A max. (15 A max. * ) |
| NO | 20 A max. (10 A max. * ) |
*For high-sensitivity overtravel models.
Direct-wired Connector and Pre-wired Connector Switches
| Model | 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 | ||
| DC | 12 DC | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| 24 DC | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | |
| 48 DC | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | |
| 115 DC | 0.8 | 0.8 | 0.2 | 0.2 | 0.8 | 0.8 | 0.2 | 0.2 | |
| AC | 115 AC | 3 | 3 | 3 | 1.5 | 3 | 3 | 3 | 2.5 |
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.
Characteristics
| Degree of protection | IP67 | |
| Durability * | Mechanical | 30,000,000 operations min. |
| Electrical | 30,000,000 operations min. (10 mA at 24 VDC, resistive load) 750,000 operations min. (10 A at 115 VAC, resistive load), but for high-precision models: 500,000 operations min. (10 A at 115 VAC, resistive load) | |
| Operating speed | 1 mm/s to 1 m/s (in case of WLCA2) | |
| Operating frequency | Mechanical | 120 operations/minute |
| Electrical | 30 operations/minute | |
| 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 (50/60 Hz for 1 min) | Between terminals of the same polarity | 1,000 VAC (except connector models) |
| Between current-carrying metal part and ground | 2,200 VAC (1,500 V) | |
| Between each terminal and non- current-carrying metal part | 2,200 VAC (1,500 V) | |
| Vibration resistance | Malfunction | 10 to 55 Hz, 1.5-mm double amplitude |
| Shock resistance | Destruction | 1,000 m/s2 min. |
| Malfunction | 300 m/s2 min. | |
| Ambient operating temperature | -10°C to +80°C (with no icing) | |
| Ambient operating humidity | 35% to 95%RH | |
| Weight | Approx. 275 g (in case of WLCA2) | |
Note:The figures in parentheses for dielectric strength, are those for overtravel (high-sensitivity) or connector models.
*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.
Caution: In the interenst of product improvement, specifications are subject to change without notice.
Top of page
