Omron WLCA12-TH-N — WL N Limit Switch, Heat Resistant
SKU: WLCA12-TH-NUSD 33.00
WL-N 2-circuit limit switch, adjustable roller lever, heat-resistant body, neon operation lamp, IP67.
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Product Overview
The Omron WLCA12-TH-N is a 2-circuit limit switch in the WL-N series, with an adjustable roller lever actuator, a heat-resistant body, and a neon operation indicator on the housing. manufactured by Omron Corporation. Hengyixin Automation ships this limit switch from our Xiamen warehouse with a 30-day DOA return window and a datasheet PDF included in the box.
The 'WL' marks the WL general-purpose line, 'CA12' marks a side-rotary adjustable roller lever, 'TH' marks the heat-resistant version (to +120 °C body), and 'N' marks the neon operation lamp. The switch carries two SPDT contacts rated at 10 A (250 VAC), with a mechanical life of 15 million operations and an electrical life of 750,000 operations at rated load.
The WLCA12-TH-N ships from Xiamen with full datasheet documentation. Allow space for the lever arm to swing through its full overtravel.
Key Features
- Two SPDT contacts, 10 A at 250 VAC
- WL-N 2-circuit general-purpose limit switch
- Adjustable roller lever actuator (CA12)
- IP67 protection rating, die-cast aluminium body
- SKU: WLCA12-TH-N
- Series: WL-N general-purpose limit switch
Best-Fit Applications
- Conveyor transfer arm position on a foundry or casting line
- Limit switch on a packaging machine near a heat-seal station
- Damper position feedback on high-temperature process exhaust lines
Buying Checklist
- Choose WLCA12-TH-N for the heat-resistant body and neon operation lamp.
- Choose WLCA12-LD-N for an LED indicator on the same switch.
- Choose WLCA12-2N-N for the double-pole version with a side-rotary lever.
Technical Specifications
| Series | WL-N general-purpose limit switch |
|---|---|
| Actuator | Side-rotary adjustable roller lever (CA12) |
| Contact Form | 2 x SPDT (2NO + 2NC), double-break |
| Contact Rating | 10 A at 250 VAC, 6 A at 30 VDC |
| Mechanical Life | 15 million operations min. |
| Electrical Life | 750,000 operations min. at rated load |
| Operating Temperature | -10 to +120 °C (TH heat-resistant) |
| Protection Rating | IP67 (IEC 60529) |
| Operation Indicator | Neon lamp (lit when NC contacts open / NO contacts close) |
| Operating Speed | 1 mm/s to 1 m/s |
| Operating Frequency | 120 mechanical / 30 electrical operations per min |
| Conduit Entry | PG13.5 (G1/2 compatible) |
FAQ for WLCA12-TH-N
What does the TH suffix mean on the WLCA12?
The TH suffix marks the heat-resistant version of the WLCA12, rated to +120 °C ambient versus +80 °C on the standard WLCA12-N. It is the right pick near ovens, steam lines, and curing cabinets. For most general-purpose panels at normal ambient, the WLCA12-N is the more cost-effective choice.
What is the difference between WLCA12-TH-N and WLCA12-LD-N?
Both are 2-circuit WL-N switches with adjustable roller levers and an operation indicator. The TH-N has a neon lamp and a heat-resistant body (+120 °C); the LD-N has an LED lamp and the standard +80 °C body. Pick TH-N near heat; pick LD-N for normal ambient and lower-power LED status.
Can the WLCA12-TH-N switch small DC control signals?
Yes, but watch the electrical life rating. At 10 A 250 VAC the WLCA12-TH-N is rated for 750,000 operations; at low-current DC (a few mA into a PLC input) the rating is lower because of the inductive nature of the contact. For pure low-signal use, consider a D4N snap-action switch with a gold-plated contact.
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