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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 (2138KB)
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General-purpose Switches
Ratings
Standard-load Switches
| Item | Rated voltage (V) | Non-inductive load (A) | Inductive load (A) | ||||||
| Model | 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 | -- | -- | -- | |||||
| Inrush current | NC | 30 A max. (15 A max. *) |
| NO | 20 A max. (10 A max. *) |
* For high-sensitivity overtravel models.
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 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.
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) | |
| 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℃ to +35℃ 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.
*3. Durability is 500,000 operations min. for high-sensitivity models. All microload models however, are 1,000,000 operations min.
*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℃ to +40℃ (with no icing). For heat-resistant models the range is +5℃ to +120℃.
Microload Switches
Refer to these ratings before using the product.
| Rated voltage (V) | Resistive load (A) |
| 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 |
Spatter-prevention Switches
Ratings
| Item | Rated voltage (V) | Non-inductive load (A) | Inductive load (A) | ||||||
| Resistive load | Lamp load | Inductive load | Motor load | ||||||
| Model | NC | NO | NC | NO | NC | NO | NC | NO | |
| WL[]-LES | 125 VAC 250 VAC | 10 10 | 3 2 | 1.5 1 | 10 10 | 5 3 | 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 | ||||
Note1. 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 | 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) | |
| 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) | |
Note1. 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℃ to +35℃ 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.
*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) | ||||||
| Resis- tive load | Lamp load | Induc- tive load | Motor load | ||||||
| NC | NO | NC | NO | NC | NO | NC | NO | ||
| Basic models, over- travel 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.
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) | |
| 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) | |
NoteThe 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℃ to +35℃, and an operating humidity of 40% to 70%RH. Contact your OMRON sales representative for more detailed information on other operating environments.
Direct-wired Connector and Pre-wired Connector Switches
| Model | Rated voltage (V) | Non- inductive load (A) | Inductive load (A) | ||||||
| Resis- tive load | Lamp load | Induc- tive 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 |
Note1. 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.
Caution: In the interenst of product improvement, specifications are subject to change without notice.
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