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Two-Circuit Limit Switch [WL-N/WL] (WLD28-139-N 1M)

Two-Circuit Limit Switch [WL-N/WL] (WLD28-139-N 1M)

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Caution

  • Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
    There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.


Product Description

The 2-circuit limit switch with variety of models that can be selected matching to the usage environment and application.

[Features]
· Circuit will break without fail by using 2-circuit double-break.
· Structure suitable to IP67 due to O ring and/or cover seal.
· Overseas approval corresponding to the machines for export approved by UL, CSA, TUV, EN/IEC, CCC.
· Most suitable to machines for export.
· Optimum high accuracy type in controlling the position is available in all types.
· Movement till operation is less (about 5°) but repeatability is two times of standard type

Dimensional Drawing of OMRON Limit Switch

Model WLCA2/Model WL01CA2 of Limit Switch

2-circuit limit switch WL-N/WL Model WLCA2/Model WL01CA2 Outline drawing

*Stainless steel sintered roller
Note: The dimensional tolerance of parts not specified in the external dimension diagram of each model is ±0.4mm.
*For information on model numbers other than those listed above, please refer to the digital catalog.

Specification of OMRON Limit Switch

Performance of Limit Switch

Protective structureIP67
Durability*1MechanicalOver 15 million times*2
ElectricalOver 750,000 times*3
Allowable Operating Speed1mm to 1m/s (for WLCA2)
Permissible operating frequencyMechanical120 times/min
Electrical30 times/min
Rated Frequency50/60Hz
Insulation resistance100MΩ or more (at DC500V mega)
Contact Resistance25mΩ or less (initial value, built-in switch only)*6
Withstand voltageBetween same-polarity terminalsAC1,000V 50/60Hz 1min
Between each terminal and earthAC2,200V 50/60Hz 1min/Uimp 2.5kV
Between each terminal and non-current-carrying metal partsAC2,200V (1,500V) 50/60Hz 1min/Uimp 2.5kV
Rated insulation voltage (Ui)250V (EN60947-5-1)
Pollution level (usage environment)3 (EN60947-5-1)
Short Circuit Protection Device10A fuse type gG or gI (IEC269)
Conditional Short Circuit Current100A (EN60947-5-1)
Rated sealed thermal current (I the)10A, 0.5A (EN60947-5-1)
Electric shock protection classClass I
vibrationmalfunction10 to 55Hz, double amplitude 1.5mm *4
impactDurabilityUp to 1,000m/s2
malfunctionMaximum 300m/s2* 4
Ambient temperature-10 to +80℃ (but do not freeze) *5
Ambient humidity35~95% RH
massApprox. 275g (for WLCA2)

Note 1. The above values are initial values of Limit Switch.
Note 2. The values in parentheses for the withstand voltage are for the microload type.
 *1. The durability values are for an ambient temperature of 5 to 35°C and an ambient humidity of 40 to 70% RH.
 *2. For overtravel general type and flexible rod type, it is 10 million times or more. For weather-
      resistant type, it is 500,000 times or more.
 *3. For microload type, it is 1 million times or more. For weather-
      resistant type, it is 500,000 times or more.
 *4. Flexible rod type is excluded. For microload type, it is up to 200 m/s2.*
 5. For cold-resistant type, it is -40 to +40°C (but do not freeze).
      For heat-resistant type, it is +5 to +120°C.
 *6. For microload type, it is 50 mΩ or less (initial value, built-in switch only).

Specification Table of OMRON Limit Switch

Model WLCA2/Model WL01CA2 of Limit Switch

(Operating Characteristics)Model(Model) WLC A2 (Model) WL01 CA2
Operating Force, OF(Max)13.34N
Return Force, RF(Min)2.23N
Pre-Travel, PT15 ± 5°
Over-Travel, OT(Min)30°
Differential Travel, MD(Max)12°

How to Use of OMRON Limit Switch

Application Examples of Limit Switch

2-circuit limit switch WL-N/WL Application examples
2-circuit limit switch WL-N/WL Application examples
2-circuit limit switch WL-N/WL Application examples
2-circuit limit switch WL-N/WL Application examples
2-circuit limit switch WL-N/WL Application examples
2-circuit limit switch WL-N/WL Application examples

Features of OMRON Limit Switch

Limit Switch General form


Our long track record has created a wide variety of options to meet your needs, including standard environmentally resistant limit switch specifications ,
Limit Switch, a wide range of actuators to suit any workpiece, selectable operation sensitivity according to the movement of the workpiece, and models with operation indicator lights and wiring specifications to meet ease of use and maintenance.

 

Environmentally resistant

Six types of environmentally resistant models are available in the series:
highly sealed, highly sealed, heat-resistant, cold-resistant, corrosion-resistant, and resistant models. Choose the model that
best suits your site environment.

 

Anti-spatter type

Effective in arc welding lines and places where cutting chips fly.
Stainless steel and resin materials are used for the components to prevent spatter adhesion.
Reduces problems caused by Zn powder generated during welding.

 

Long life type

Achieves high mechanical durability of over 30 million operations.
Long-life model suitable for frequent use.
High durability has been achieved through improvements to the abrasion resistance and sliding properties of the head mechanism.
In addition, the fluorescent display of the stroke setting zone improves visibility when setting.

 

Features common to all models

The joint is a two-circuit double breaker
, ensuring a reliable interruption of the circuit.

2-circuit limit switch WL-N/WL Common features for all models
 

IP67 protection rating

The structure complies with IP67 using O-rings, cover seals, etc.

 

Obtained overseas standards for export machinery

Limit Switch It is ideal for export machinery as it is certified to UL, CSA, TUV, EN/IEC, and CCC standards.

 

Operation display for easy daily inspection

The operating status can be confirmed by a neon lamp or LED, making start-up checks and maintenance easy.
*The general type is equipped with an operation display type, while the spatter-proof type and long-life type are equipped with a standard type.

 

Connector type lineup that reduces wiring work

Reduces the amount of work required for wiring switches. In addition, we offer a series of connectors (direct connection type, pre-wired type) that make replacement easy.

Selection Support Information of OMRON Limit Switch

2-circuit limit switch WL-N/WL selection support information

Technical Information of OMRON Limit Switch

<About DC 2-wire connector pin wiring>

  • In accordance with the establishment of the IEC standard (IEC947-5-2 Table III), the connector pin wiring has been changed to comply with the IEC standard.
    (Only the DC 2-wire type has been changed from the conventional type.)
 
  • A pin wiring conversion connector (plug) is available for maintenance of old pin wiring products. (However, only NO type can be used.)
    Also, those who are already using the connector relay box type XW3A-P□45-G11 should use the code on the right.
2-circuit limit switch WL-N/WL <About the connector pin wiring of the DC 2-wire type>

Cautions and Prohibitions of OMRON Limit Switch

Caveat Limit Switch

This Limit Switch product cannot be used to directly or indirectly detect the human body for the purpose of ensuring safety.
Do not use this product as a detection device for human body protection.

 

Note

Do not short-circuit the load. This may cause the device to explode or burn.
If you connect the power supply directly without a load, the internal elements may explode or burn, so be sure to connect the device with a load.

Part Number
WLD28-139-N 1M
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipDetector Shape Environment Plunger Shape Type Boot Seal Roller Lever Shape Type Rod Shape Type Operating Temperature Range
(°C)
Acquired Standards Protection Structure Force Required for Push Side O.F.
(N)
Motion to Switching P.T.
(mm)
Angle to Switching P.T
(deg)
Max. Stroke T.T
(mm)
Contact Type Mechanical Life
(10,000 times)
Mechanical Operation Frequency
(times/min or Less)
Rated Operating Voltage
(V)
Rated Conductance Current
(A)
Main Body External Dimension, Width W
(mm)
Main Body External Dimension, Height H
(mm)
Main Body External Dimension, Length L
(mm)
Lever Length R
(mm)
Cable Specifications Detector element details Indicator Light Movement After the Operation OT
(mm)
Operating Position OP
(mm)
Conduit size Specification of Terminal Cord / cable length
(m)
Details Type O.D. Function Mounting system Direction of Operation Roller position Roller Type Contact format Built-in Switch Specification High Sealing Specification Connector Type Wiring Specifications Lever Tightening Specification AC Rated Voltage DC Rated Voltage AC Electrical Rating details DC Electrical Rating details Head Material Specifications Application Note

₹ 7,119.95

1 Piece(s) 35 Day(s) or more Plunger TypeStandard[Roller Plungers] Roller Plunger----10~80GB(CCC)IP67-MAX1.7mm---1500120------VCTSealed top roller plunger typeNo---Ground terminal not included1Environmentally tolerant type, standard type-------General built-in switch139 type--Standard (hexagon socket head cap screw)125 / 250 / 5008 / 14 / 30 / 125 / 250125 V AC, 250 V, 500 V (10 A)8 V DC, 14 V (10 A) / 30 V (6 A) / 125 V (0.8 A) / 250 V (0.4 A)Stainless sintered rollerGeneral load/micro-load--

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Basic Information

Main Body Size Standard
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